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Convert this MATLAB block to Python, preserving its control flow and logic.
function r = fivenum(x) r = quantile(x,[0:4]/4); end;
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Please provide an equivalent version of this MATLAB code in Python.
function r = fivenum(x) r = quantile(x,[0:4]/4); end;
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Ensure the translated VB code behaves exactly like the original MATLAB snippet.
function r = fivenum(x) r = quantile(x,[0:4]/4); end;
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Write the same algorithm in VB as shown in this MATLAB implementation.
function r = fivenum(x) r = quantile(x,[0:4]/4); end;
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Preserve the algorithm and functionality while converting the code from MATLAB to Go.
function r = fivenum(x) r = quantile(x,[0:4]/4); end;
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Translate this program into Go but keep the logic exactly as in MATLAB.
function r = fivenum(x) r = quantile(x,[0:4]/4); end;
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Maintain the same structure and functionality when rewriting this code in C.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Change the following Nim code into C without altering its purpose.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Translate the given Nim code snippet into C# without altering its behavior.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Write a version of this Nim function in C# with identical behavior.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Generate an equivalent C++ version of this Nim code.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Change the following Nim code into C++ without altering its purpose.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Write the same code in Java as shown below in Nim.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Maintain the same structure and functionality when rewriting this code in Java.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Port the provided Nim code into Python while preserving the original functionality.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Port the provided Nim code into Python while preserving the original functionality.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Please provide an equivalent version of this Nim code in VB.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Translate this program into VB but keep the logic exactly as in Nim.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Change the following Nim code into Go without altering its purpose.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Rewrite the snippet below in Go so it works the same as the original Nim code.
import algorithm type FiveNum = array[5, float] template isOdd(n: SomeInteger): bool = (n and 1) != 0 func median(x: openArray[float]; startIndex, endIndex: Natural): float = let size = endIndex - startIndex + 1 assert(size > 0, "array slice cannot be empty") let m = startIndex + size div 2 result = if size.isOdd: x[m] else: (x[m-1] + x[m]) / 2 func fivenum(x: openArray[float]): FiveNum = let x = sorted(x) let m = x.len div 2 let lowerEnd = if x.len.isOdd: m else: m - 1 result[0] = x[0] result[1] = median(x, 0, lowerEnd) result[2] = median(x, 0, x.high) result[3] = median(x, m, x.high) result[4] = x[^1] const Lists = [@[15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0], @[36.0, 40.0, 7.0, 39.0, 41.0, 15.0], @[0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578]] for list in Lists: echo "" echo list echo " β†’ ", list.fivenum
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Write a version of this Perl function in C with identical behavior.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Please provide an equivalent version of this Perl code in C.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Convert this Perl block to C#, preserving its control flow and logic.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Write a version of this Perl function in C# with identical behavior.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Rewrite the snippet below in C++ so it works the same as the original Perl code.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Write a version of this Perl function in C++ with identical behavior.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Preserve the algorithm and functionality while converting the code from Perl to Java.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Produce a functionally identical Java code for the snippet given in Perl.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Write the same code in Python as shown below in Perl.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Port the following code from Perl to Python with equivalent syntax and logic.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Transform the following Perl implementation into VB, maintaining the same output and logic.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Change the programming language of this snippet from Perl to VB without modifying what it does.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Ensure the translated Go code behaves exactly like the original Perl snippet.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Keep all operations the same but rewrite the snippet in Go.
use POSIX qw(ceil floor); sub fivenum { my(@array) = @_; my $n = scalar @array; die "No values were entered into fivenum!" if $n == 0; my @x = sort {$a <=> $b} @array; my $n4 = floor(($n+3)/2)/2; my @d = (1, $n4, ($n +1)/2, $n+1-$n4, $n); my @sum_array; for my $e (0..4) { my $floor = floor($d[$e]-1); my $ceil = ceil($d[$e]-1); push @sum_array, (0.5 * ($x[$floor] + $x[$ceil])); } return @sum_array; } my @x = (15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43); my @tukey = fivenum(\@x); say join (',', @tukey); @x = (36, 40, 7, 39, 41, 15), @tukey = fivenum(\@x); say join (',', @tukey); @x = (0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578); @tukey = fivenum(\@x); say join (',', @tukey);
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Maintain the same structure and functionality when rewriting this code in C.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Maintain the same structure and functionality when rewriting this code in C.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Rewrite this program in C# while keeping its functionality equivalent to the R version.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Keep all operations the same but rewrite the snippet in C#.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Preserve the algorithm and functionality while converting the code from R to C++.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Write the same algorithm in C++ as shown in this R implementation.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Write a version of this R function in Java with identical behavior.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Port the following code from R to Java with equivalent syntax and logic.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Produce a functionally identical Python code for the snippet given in R.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Change the following R code into Python without altering its purpose.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Convert this R block to VB, preserving its control flow and logic.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Translate the given R code snippet into VB without altering its behavior.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Translate the given R code snippet into Go without altering its behavior.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Change the programming language of this snippet from R to Go without modifying what it does.
x <- c(0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555,-0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578) fivenum(x)
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Can you help me rewrite this code in C instead of Racket, keeping it the same logically?
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Write a version of this Racket function in C with identical behavior.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Transform the following Racket implementation into C#, maintaining the same output and logic.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Rewrite the snippet below in C# so it works the same as the original Racket code.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Maintain the same structure and functionality when rewriting this code in C++.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Convert this Racket snippet to C++ and keep its semantics consistent.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Port the provided Racket code into Java while preserving the original functionality.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Write the same algorithm in Java as shown in this Racket implementation.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Maintain the same structure and functionality when rewriting this code in Python.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Generate a Python translation of this Racket snippet without changing its computational steps.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Write a version of this Racket function in VB with identical behavior.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Rewrite the snippet below in VB so it works the same as the original Racket code.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Port the following code from Racket to Go with equivalent syntax and logic.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Generate an equivalent Go version of this Racket code.
#lang racket/base (require math/private/statistics/quickselect) (define (fivenum! data-v) (define (tukey-median start end) (define-values (n/2 parity) (quotient/remainder (- end start) 2)) (define mid (+ start n/2)) (if (zero? parity) (/ (+ (data-kth-value! (+ mid (sub1 parity))) (data-kth-value! mid)) 2) (data-kth-value! mid))) (define n-data (let ((l (vector-length data-v))) (if (zero? l) (raise-argument-error 'data-v "nonempty (Vectorof Real)" data-v) l))) (define (data-kth-value! n) (kth-value! data-v n <)) (define subset-size (let-values (((n/2 parity) (quotient/remainder n-data 2))) (+ n/2 parity))) (vector (data-kth-value! 0) (tukey-median 0 subset-size) (tukey-median 0 n-data) (tukey-median (- n-data subset-size) n-data) (data-kth-value! (sub1 n-data)))) (define (fivenum data-seq) (fivenum! (if (and (vector? data-seq) (not (immutable? data-seq))) data-seq (for/vector ((datum data-seq)) datum)))) (module+ test (require rackunit racket/vector) (check-equal? #(14 14 14 14 14) (fivenum #(14)) "Minimal case") (check-equal? #(8 11 14 17 20) (fivenum #(8 14 20)) "3-value case") (check-equal? #(8 11 15 18 20) (fivenum #(8 14 16 20)) "4-value case") (define x1-seq #(36 40 7 39 41 15)) (define x1-v (vector-copy x1-seq)) (check-equal? x1-seq x1-v "before fivenum! sequence and vector were not `equal?`") (check-equal? #(7 15 #e37.5 40 41) (fivenum! x1-v) "Test against Go results x1") (check-not-equal? x1-seq x1-v "fivenum! did not mutate mutable input vectors") (check-equal? #(6 #e25.5 40 #e42.5 49) (fivenum #(15 6 42 41 7 36 49 40 39 47 43)) "Test against Go results x2") (check-equal? #(-1.95059594 -0.676741205 0.23324706 0.746070945 1.73131507) (fivenum (vector 0.14082834 0.09748790 1.73131507 0.87636009 -1.95059594 0.73438555 -0.03035726 1.46675970 -0.74621349 -0.72588772 0.63905160 0.61501527 -0.98983780 -1.00447874 -0.62759469 0.66206163 1.04312009 -0.10305385 0.75775634 0.32566578)) "Test against Go results x3"))
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Convert this REXX block to C, preserving its control flow and logic.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Convert the following code from REXX to C, ensuring the logic remains intact.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Convert the following code from REXX to C#, ensuring the logic remains intact.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Convert this REXX snippet to C# and keep its semantics consistent.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Change the following REXX code into C++ without altering its purpose.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Can you help me rewrite this code in C++ instead of REXX, keeping it the same logically?
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Translate this program into Java but keep the logic exactly as in REXX.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Translate this program into Java but keep the logic exactly as in REXX.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Ensure the translated Python code behaves exactly like the original REXX snippet.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Write a version of this REXX function in Python with identical behavior.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Translate this program into VB but keep the logic exactly as in REXX.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Rewrite this program in VB while keeping its functionality equivalent to the REXX version.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Translate the given REXX code snippet into Go without altering its behavior.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Port the following code from REXX to Go with equivalent syntax and logic.
parse arg x if x='' then x= 15 6 42 41 7 36 49 40 39 47 43 say 'input numbers: ' space(x) call 5num say ' five─numbers: ' result exit bSort: procedure expose @.; parse arg n; m=n-1 do m=m for m by -1 until ok; ok= 1 do j=1 for m; k= j + 1; if @.j<=@.k then iterate parse value @.j @.k 0 with @.k @.j ok end end med: arg s,e; $=e-s+1; m=s+$%2; if $//2 then return @.m; _=m-1; return (@._+@.m)/2 5num: #= words(x); if #==0 then return '***error*** array is empty.' parse var x . 1 LO . 1 HI . q2= # % 2; er= '***error*** element' do j=1 for #; @.j= word(x, j) if \datatype(@.j, 'N') then return er j "isn't numeric: " @.j LO= min(LO, @.j); HI= max(HI, @.j) end call bSort # if #//2 then p25= q2 else p25= q2 - 1 return LO med(1, p25) med(1, #) med(q2, #) HI
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Ensure the translated C code behaves exactly like the original Ruby snippet.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Rewrite this program in C while keeping its functionality equivalent to the Ruby version.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Convert the following code from Ruby to C#, ensuring the logic remains intact.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Change the following Ruby code into C# without altering its purpose.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Can you help me rewrite this code in C++ instead of Ruby, keeping it the same logically?
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Change the programming language of this snippet from Ruby to C++ without modifying what it does.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Generate an equivalent Java version of this Ruby code.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Generate an equivalent Java version of this Ruby code.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Port the following code from Ruby to Python with equivalent syntax and logic.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Maintain the same structure and functionality when rewriting this code in Python.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Convert the following code from Ruby to VB, ensuring the logic remains intact.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Convert this Ruby snippet to VB and keep its semantics consistent.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
#define floor(x) ((x*2.0-0.5) Shr 1) Sub rapidSort (array()As Single, l As Integer, r As Integer) Dim As Integer n, wert, nptr, rep Dim As Single arr, LoVal = array(l), HiVal = array(r) For n = l To r If LoVal > array(n) Then LoVal = array(n) If HiVal < array(n) Then HiVal = array(n) Next n Redim SortArray(LoVal To HiVal) As Single For n = l To r wert = array(n) SortArray(wert) += 1 Next n nptr = l-1 For arr = LoVal To HiVal rep = SortArray(arr) For n = 1 To rep nptr += 1 array(nptr) = arr Next n Next arr Erase SortArray End Sub Function median(tbl() As Single, lo As Integer, hi As Integer) As Single Dim As Integer l = hi-lo+1 Dim As Integer m = lo+floor(l/2) If l Mod 2 = 1 Then Return tbl(m) Return (tbl(m-1)+tbl(m))/2 End Function Sub fivenum(tbl() As Single) rapidSort(tbl(), Lbound(tbl), Ubound(tbl)) Dim As Integer l = Ubound(tbl) Dim As Single m = floor(l/2) + (l Mod 2) Dim As Single r1,r2,r3,r4,r5 r1 = tbl(1) r2 = median(tbl(),1,m) r3 = median(tbl(),1,l) r4 = median(tbl(),m+1,l) r5 = tbl(l) Print "[" & r1; ","; r2; ","; r3; ","; r4; ", "; r5 & "]" End Sub Dim As Single x1(1 To ...) = {15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} Dim As Single x2(1 To ...) = {36, 40, 7, 39, 41, 15} Dim As Single x3(1 To ...) = {_ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, _ 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, _ 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, _ 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578} fivenum(x1()) fivenum(x2()) fivenum(x3()) Sleep
Produce a functionally identical Go code for the snippet given in Ruby.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Convert the following code from Ruby to Go, ensuring the logic remains intact.
def fivenum(array) sorted_arr = array.sort n = array.size n4 = (((n + 3).to_f / 2.to_f) / 2.to_f).floor d = Array.[](1, n4, ((n.to_f + 1) / 2).to_i, n + 1 - n4, n) sum_array = [] (0..4).each do |e| index_floor = (d[e] - 1).floor index_ceil = (d[e] - 1).ceil sum_array.push(0.5 * (sorted_arr[index_floor] + sorted_arr[index_ceil])) end sum_array end test_array = [15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43] tukey_array = fivenum(test_array) p tukey_array test_array = [36, 40, 7, 39, 41, 15] tukey_array = fivenum(test_array) p tukey_array test_array = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] tukey_array = fivenum(test_array) p tukey_array
package main import ( "fmt" "math" "sort" ) func fivenum(a []float64) (n5 [5]float64) { sort.Float64s(a) n := float64(len(a)) n4 := float64((len(a)+3)/2) / 2 d := []float64{1, n4, (n + 1) / 2, n + 1 - n4, n} for e, de := range d { floor := int(de - 1) ceil := int(math.Ceil(de - 1)) n5[e] = .5 * (a[floor] + a[ceil]) } return } var ( x1 = []float64{36, 40, 7, 39, 41, 15} x2 = []float64{15, 6, 42, 41, 7, 36, 49, 40, 39, 47, 43} x3 = []float64{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578, } ) func main() { fmt.Println(fivenum(x1)) fmt.Println(fivenum(x2)) fmt.Println(fivenum(x3)) }
Port the following code from Scala to C with equivalent syntax and logic.
fun median(x: DoubleArray, start: Int, endInclusive: Int): Double { val size = endInclusive - start + 1 require (size > 0) { "Array slice cannot be empty" } val m = start + size / 2 return if (size % 2 == 1) x[m] else (x[m - 1] + x[m]) / 2.0 } fun fivenum(x: DoubleArray): DoubleArray { require(x.none { it.isNaN() }) { "Unable to deal with arrays containing NaN" } val result = DoubleArray(5) x.sort() result[0] = x[0] result[2] = median(x, 0, x.size - 1) result[4] = x[x.lastIndex] val m = x.size / 2 var lowerEnd = if (x.size % 2 == 1) m else m - 1 result[1] = median(x, 0, lowerEnd) result[3] = median(x, m, x.size - 1) return result } fun main(args: Array<String>) { var xl = listOf( doubleArrayOf(15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0), doubleArrayOf(36.0, 40.0, 7.0, 39.0, 41.0, 15.0), doubleArrayOf( 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 ) ) xl.forEach { println("${fivenum(it).asList()}\n") } }
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Can you help me rewrite this code in C instead of Scala, keeping it the same logically?
fun median(x: DoubleArray, start: Int, endInclusive: Int): Double { val size = endInclusive - start + 1 require (size > 0) { "Array slice cannot be empty" } val m = start + size / 2 return if (size % 2 == 1) x[m] else (x[m - 1] + x[m]) / 2.0 } fun fivenum(x: DoubleArray): DoubleArray { require(x.none { it.isNaN() }) { "Unable to deal with arrays containing NaN" } val result = DoubleArray(5) x.sort() result[0] = x[0] result[2] = median(x, 0, x.size - 1) result[4] = x[x.lastIndex] val m = x.size / 2 var lowerEnd = if (x.size % 2 == 1) m else m - 1 result[1] = median(x, 0, lowerEnd) result[3] = median(x, m, x.size - 1) return result } fun main(args: Array<String>) { var xl = listOf( doubleArrayOf(15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0), doubleArrayOf(36.0, 40.0, 7.0, 39.0, 41.0, 15.0), doubleArrayOf( 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 ) ) xl.forEach { println("${fivenum(it).asList()}\n") } }
#include <stdio.h> #include <stdlib.h> double median(double *x, int start, int end_inclusive) { int size = end_inclusive - start + 1; if (size <= 0) { printf("Array slice cannot be empty\n"); exit(1); } int m = start + size / 2; if (size % 2) return x[m]; return (x[m - 1] + x[m]) / 2.0; } int compare (const void *a, const void *b) { double aa = *(double*)a; double bb = *(double*)b; if (aa > bb) return 1; if (aa < bb) return -1; return 0; } int fivenum(double *x, double *result, int x_len) { int i, m, lower_end; for (i = 0; i < x_len; i++) { if (x[i] != x[i]) { printf("Unable to deal with arrays containing NaN\n\n"); return 1; } } qsort(x, x_len, sizeof(double), compare); result[0] = x[0]; result[2] = median(x, 0, x_len - 1); result[4] = x[x_len - 1]; m = x_len / 2; lower_end = (x_len % 2) ? m : m - 1; result[1] = median(x, 0, lower_end); result[3] = median(x, m, x_len - 1); return 0; } int show(double *result, int places) { int i; char f[7]; sprintf(f, "%%.%dlf", places); printf("["); for (i = 0; i < 5; i++) { printf(f, result[i]); if (i < 4) printf(", "); } printf("]\n\n"); } int main() { double result[5]; double x1[11] = {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}; if (!fivenum(x1, result, 11)) show(result, 1); double x2[6] = {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}; if (!fivenum(x2, result, 6)) show(result, 1); double x3[20] = { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }; if (!fivenum(x3, result, 20)) show(result, 9); return 0; }
Produce a language-to-language conversion: from Scala to C#, same semantics.
fun median(x: DoubleArray, start: Int, endInclusive: Int): Double { val size = endInclusive - start + 1 require (size > 0) { "Array slice cannot be empty" } val m = start + size / 2 return if (size % 2 == 1) x[m] else (x[m - 1] + x[m]) / 2.0 } fun fivenum(x: DoubleArray): DoubleArray { require(x.none { it.isNaN() }) { "Unable to deal with arrays containing NaN" } val result = DoubleArray(5) x.sort() result[0] = x[0] result[2] = median(x, 0, x.size - 1) result[4] = x[x.lastIndex] val m = x.size / 2 var lowerEnd = if (x.size % 2 == 1) m else m - 1 result[1] = median(x, 0, lowerEnd) result[3] = median(x, m, x.size - 1) return result } fun main(args: Array<String>) { var xl = listOf( doubleArrayOf(15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0), doubleArrayOf(36.0, 40.0, 7.0, 39.0, 41.0, 15.0), doubleArrayOf( 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 ) ) xl.forEach { println("${fivenum(it).asList()}\n") } }
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Preserve the algorithm and functionality while converting the code from Scala to C#.
fun median(x: DoubleArray, start: Int, endInclusive: Int): Double { val size = endInclusive - start + 1 require (size > 0) { "Array slice cannot be empty" } val m = start + size / 2 return if (size % 2 == 1) x[m] else (x[m - 1] + x[m]) / 2.0 } fun fivenum(x: DoubleArray): DoubleArray { require(x.none { it.isNaN() }) { "Unable to deal with arrays containing NaN" } val result = DoubleArray(5) x.sort() result[0] = x[0] result[2] = median(x, 0, x.size - 1) result[4] = x[x.lastIndex] val m = x.size / 2 var lowerEnd = if (x.size % 2 == 1) m else m - 1 result[1] = median(x, 0, lowerEnd) result[3] = median(x, m, x.size - 1) return result } fun main(args: Array<String>) { var xl = listOf( doubleArrayOf(15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0), doubleArrayOf(36.0, 40.0, 7.0, 39.0, 41.0, 15.0), doubleArrayOf( 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 ) ) xl.forEach { println("${fivenum(it).asList()}\n") } }
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Fivenum { public static class Helper { public static string AsString<T>(this ICollection<T> c, string format = "{0}") { StringBuilder sb = new StringBuilder("["); int count = 0; foreach (var t in c) { if (count++ > 0) { sb.Append(", "); } sb.AppendFormat(format, t); } return sb.Append("]").ToString(); } } class Program { static double Median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new ArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] Fivenum(double[] x) { foreach (var d in x) { if (Double.IsNaN(d)) { throw new ArgumentException("Unable to deal with arrays containing NaN"); } } double[] result = new double[5]; Array.Sort(x); result[0] = x.First(); result[2] = Median(x, 0, x.Length - 1); result[4] = x.Last(); int m = x.Length / 2; int lowerEnd = (x.Length % 2 == 1) ? m : m - 1; result[1] = Median(x, 0, lowerEnd); result[3] = Median(x, m, x.Length - 1); return result; } static void Main(string[] args) { double[][] x1 = new double[][]{ new double[]{ 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, new double[]{ 36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, new double[]{ 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 }, }; foreach(var x in x1) { var result = Fivenum(x); Console.WriteLine(result.AsString("{0:F8}")); } } } }
Please provide an equivalent version of this Scala code in C++.
fun median(x: DoubleArray, start: Int, endInclusive: Int): Double { val size = endInclusive - start + 1 require (size > 0) { "Array slice cannot be empty" } val m = start + size / 2 return if (size % 2 == 1) x[m] else (x[m - 1] + x[m]) / 2.0 } fun fivenum(x: DoubleArray): DoubleArray { require(x.none { it.isNaN() }) { "Unable to deal with arrays containing NaN" } val result = DoubleArray(5) x.sort() result[0] = x[0] result[2] = median(x, 0, x.size - 1) result[4] = x[x.lastIndex] val m = x.size / 2 var lowerEnd = if (x.size % 2 == 1) m else m - 1 result[1] = median(x, 0, lowerEnd) result[3] = median(x, m, x.size - 1) return result } fun main(args: Array<String>) { var xl = listOf( doubleArrayOf(15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0), doubleArrayOf(36.0, 40.0, 7.0, 39.0, 41.0, 15.0), doubleArrayOf( 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 ) ) xl.forEach { println("${fivenum(it).asList()}\n") } }
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Generate a C++ translation of this Scala snippet without changing its computational steps.
fun median(x: DoubleArray, start: Int, endInclusive: Int): Double { val size = endInclusive - start + 1 require (size > 0) { "Array slice cannot be empty" } val m = start + size / 2 return if (size % 2 == 1) x[m] else (x[m - 1] + x[m]) / 2.0 } fun fivenum(x: DoubleArray): DoubleArray { require(x.none { it.isNaN() }) { "Unable to deal with arrays containing NaN" } val result = DoubleArray(5) x.sort() result[0] = x[0] result[2] = median(x, 0, x.size - 1) result[4] = x[x.lastIndex] val m = x.size / 2 var lowerEnd = if (x.size % 2 == 1) m else m - 1 result[1] = median(x, 0, lowerEnd) result[3] = median(x, m, x.size - 1) return result } fun main(args: Array<String>) { var xl = listOf( doubleArrayOf(15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0), doubleArrayOf(36.0, 40.0, 7.0, 39.0, 41.0, 15.0), doubleArrayOf( 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 ) ) xl.forEach { println("${fivenum(it).asList()}\n") } }
#include <algorithm> #include <iostream> #include <ostream> #include <vector> template<std::size_t> struct int_ {}; template <class Tuple, size_t Pos> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<Pos>) { out << std::get< std::tuple_size<Tuple>::value - Pos >(t) << ", "; return print_tuple(out, t, int_<Pos - 1>()); } template <class Tuple> std::ostream& print_tuple(std::ostream& out, const Tuple& t, int_<1>) { return out << std::get<std::tuple_size<Tuple>::value - 1>(t); } template <class... Args> std::ostream& operator<<(std::ostream& out, const std::tuple<Args...>& t) { out << '('; print_tuple(out, t, int_<sizeof...(Args)>()); return out << ')'; } template <class RI> double median(RI beg, RI end) { if (beg == end) throw std::runtime_error("Range cannot be empty"); auto len = end - beg; auto m = len / 2; if (len % 2 == 1) { return *(beg + m); } return (beg[m - 1] + beg[m]) / 2.0; } template <class C> auto fivenum(C& c) { std::sort(c.begin(), c.end()); auto cbeg = c.cbegin(); auto cend = c.cend(); auto len = cend - cbeg; auto m = len / 2; auto lower = (len % 2 == 1) ? m : m - 1; double r2 = median(cbeg, cbeg + lower + 1); double r3 = median(cbeg, cend); double r4 = median(cbeg + lower + 1, cend); return std::make_tuple(*cbeg, r2, r3, r4, *(cend - 1)); } int main() { using namespace std; vector<vector<double>> cs = { { 15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0 }, { 36.0, 40.0, 7.0, 39.0, 41.0, 15.0 }, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (auto & c : cs) { cout << fivenum(c) << endl; } return 0; }
Change the following Scala code into Java without altering its purpose.
fun median(x: DoubleArray, start: Int, endInclusive: Int): Double { val size = endInclusive - start + 1 require (size > 0) { "Array slice cannot be empty" } val m = start + size / 2 return if (size % 2 == 1) x[m] else (x[m - 1] + x[m]) / 2.0 } fun fivenum(x: DoubleArray): DoubleArray { require(x.none { it.isNaN() }) { "Unable to deal with arrays containing NaN" } val result = DoubleArray(5) x.sort() result[0] = x[0] result[2] = median(x, 0, x.size - 1) result[4] = x[x.lastIndex] val m = x.size / 2 var lowerEnd = if (x.size % 2 == 1) m else m - 1 result[1] = median(x, 0, lowerEnd) result[3] = median(x, m, x.size - 1) return result } fun main(args: Array<String>) { var xl = listOf( doubleArrayOf(15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0), doubleArrayOf(36.0, 40.0, 7.0, 39.0, 41.0, 15.0), doubleArrayOf( 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 ) ) xl.forEach { println("${fivenum(it).asList()}\n") } }
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Port the following code from Scala to Java with equivalent syntax and logic.
fun median(x: DoubleArray, start: Int, endInclusive: Int): Double { val size = endInclusive - start + 1 require (size > 0) { "Array slice cannot be empty" } val m = start + size / 2 return if (size % 2 == 1) x[m] else (x[m - 1] + x[m]) / 2.0 } fun fivenum(x: DoubleArray): DoubleArray { require(x.none { it.isNaN() }) { "Unable to deal with arrays containing NaN" } val result = DoubleArray(5) x.sort() result[0] = x[0] result[2] = median(x, 0, x.size - 1) result[4] = x[x.lastIndex] val m = x.size / 2 var lowerEnd = if (x.size % 2 == 1) m else m - 1 result[1] = median(x, 0, lowerEnd) result[3] = median(x, m, x.size - 1) return result } fun main(args: Array<String>) { var xl = listOf( doubleArrayOf(15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0), doubleArrayOf(36.0, 40.0, 7.0, 39.0, 41.0, 15.0), doubleArrayOf( 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 ) ) xl.forEach { println("${fivenum(it).asList()}\n") } }
import java.util.Arrays; public class Fivenum { static double median(double[] x, int start, int endInclusive) { int size = endInclusive - start + 1; if (size <= 0) throw new IllegalArgumentException("Array slice cannot be empty"); int m = start + size / 2; return (size % 2 == 1) ? x[m] : (x[m - 1] + x[m]) / 2.0; } static double[] fivenum(double[] x) { for (Double d : x) { if (d.isNaN()) throw new IllegalArgumentException("Unable to deal with arrays containing NaN"); } double[] result = new double[5]; Arrays.sort(x); result[0] = x[0]; result[2] = median(x, 0, x.length - 1); result[4] = x[x.length - 1]; int m = x.length / 2; int lowerEnd = (x.length % 2 == 1) ? m : m - 1; result[1] = median(x, 0, lowerEnd); result[3] = median(x, m, x.length - 1); return result; } public static void main(String[] args) { double xl[][] = { {15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0}, {36.0, 40.0, 7.0, 39.0, 41.0, 15.0}, { 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 } }; for (double[] x : xl) System.out.printf("%s\n\n", Arrays.toString(fivenum(x))); } }
Translate the given Scala code snippet into Python without altering its behavior.
fun median(x: DoubleArray, start: Int, endInclusive: Int): Double { val size = endInclusive - start + 1 require (size > 0) { "Array slice cannot be empty" } val m = start + size / 2 return if (size % 2 == 1) x[m] else (x[m - 1] + x[m]) / 2.0 } fun fivenum(x: DoubleArray): DoubleArray { require(x.none { it.isNaN() }) { "Unable to deal with arrays containing NaN" } val result = DoubleArray(5) x.sort() result[0] = x[0] result[2] = median(x, 0, x.size - 1) result[4] = x[x.lastIndex] val m = x.size / 2 var lowerEnd = if (x.size % 2 == 1) m else m - 1 result[1] = median(x, 0, lowerEnd) result[3] = median(x, m, x.size - 1) return result } fun main(args: Array<String>) { var xl = listOf( doubleArrayOf(15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0), doubleArrayOf(36.0, 40.0, 7.0, 39.0, 41.0, 15.0), doubleArrayOf( 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 ) ) xl.forEach { println("${fivenum(it).asList()}\n") } }
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)
Ensure the translated Python code behaves exactly like the original Scala snippet.
fun median(x: DoubleArray, start: Int, endInclusive: Int): Double { val size = endInclusive - start + 1 require (size > 0) { "Array slice cannot be empty" } val m = start + size / 2 return if (size % 2 == 1) x[m] else (x[m - 1] + x[m]) / 2.0 } fun fivenum(x: DoubleArray): DoubleArray { require(x.none { it.isNaN() }) { "Unable to deal with arrays containing NaN" } val result = DoubleArray(5) x.sort() result[0] = x[0] result[2] = median(x, 0, x.size - 1) result[4] = x[x.lastIndex] val m = x.size / 2 var lowerEnd = if (x.size % 2 == 1) m else m - 1 result[1] = median(x, 0, lowerEnd) result[3] = median(x, m, x.size - 1) return result } fun main(args: Array<String>) { var xl = listOf( doubleArrayOf(15.0, 6.0, 42.0, 41.0, 7.0, 36.0, 49.0, 40.0, 39.0, 47.0, 43.0), doubleArrayOf(36.0, 40.0, 7.0, 39.0, 41.0, 15.0), doubleArrayOf( 0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578 ) ) xl.forEach { println("${fivenum(it).asList()}\n") } }
from __future__ import division import math import sys def fivenum(array): n = len(array) if n == 0: print("you entered an empty array.") sys.exit() x = sorted(array) n4 = math.floor((n+3.0)/2.0)/2.0 d = [1, n4, (n+1)/2, n+1-n4, n] sum_array = [] for e in range(5): floor = int(math.floor(d[e] - 1)) ceil = int(math.ceil(d[e] - 1)) sum_array.append(0.5 * (x[floor] + x[ceil])) return sum_array x = [0.14082834, 0.09748790, 1.73131507, 0.87636009, -1.95059594, 0.73438555, -0.03035726, 1.46675970, -0.74621349, -0.72588772, 0.63905160, 0.61501527, -0.98983780, -1.00447874, -0.62759469, 0.66206163, 1.04312009, -0.10305385, 0.75775634, 0.32566578] y = fivenum(x) print(y)