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cauchy_distribution a() in C++ with Examples - GeeksforGeeks
16 Oct, 2018 The cauchy_distribution::a() function is an inbuilt function in C++ STL which is used to returns the distribution parameter associated with Cauchy distribution. The class cauchy_distribution is present in header file random. Before going to the syntax of the function, brief introduction to Cauchy Distribut...
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BabylonJS - Environment Setup
In this chapter, we will learn how to set up the environment for BabylonJS. To start with the setup, visit the official website of Babylon.js − www.babylonjs.com. Go to the download section and choose the latest version of Babylon.js and store in your folder. The screenshot for the same is as follows − You can also go ...
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Using EXPLAIN keyword in MySQL
MySQL EXPLAIN gives a query execution plan. EXPLAIN can be used in the beginning with SELECT, INSERT, DELETE, REPLACE, and UPDATE. To avoid the complete table scan in database, you need to use index. Let us first create a table − mysql> create table DemoTable1488 -> ( -> StudentId int, -> StudentName varchar(2...
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How to deal with error “var(x) : Calling var(x) on a factor x is defunct.” in R?
The error “Calling var(x) on a factor x is defunct” occurs when we try to apply a numerical function on factor data. For example, if we have a factor column in a data frame then applying numerical functions on that column would result in the above error. To deal with this problem, we can use as.numeric function along w...
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Program to find number of combinations of coins to reach target in Python
Suppose we have a list of coins and another value amount, we have to find the number of combinations there are that sum to amount. If the answer is very large, then mod the result by 10^9 + 7. So, if the input is like coins = [2, 5] amount = 10, then the output will be 2, as we can make these combinations − [2, 2, 2, 2...
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Contextual Emotion Detection in Textual Conversations Using Neural Networks | by Sergey Smetanin | Towards Data Science
Nowadays, talking to conversational agents is becoming a daily routine, and it is crucial for dialogue systems to generate responses as human-like as possible. As one of the main aspects, primary attention should be given to providing emotionally aware responses to users. In this article, we are going to describe the r...
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How to Compare Product Sales By Month in SQL? - GeeksforGeeks
16 Nov, 2021 A monthly sales report represents the state of sales activities in a company per month. It helps the sales team to move in the right direction. Whether you are a sales leader or manager, metrics are immensely important for your company’s success. If your data is stored in a database, you can calculate the ...
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Python - Sum negative and positive values using GroupBy in Pandas
Let us see how to find the sum of negative and positive values. At first, create a dataframe with positive and negative values − dataFrame = pd.DataFrame({'Place': ['Chicago', 'Denver', 'Atlanta', 'Chicago', 'Dallas', 'Denver','Dallas', 'Atlanta'], 'Temperature': [-2, 30, -5, 10, 30, -5, 20, -10]}) Next, use groupby to...
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Python | sympy.sin() method - GeeksforGeeks
19 Jul, 2019 In simpy, sin() method is sine function. Using the sin(x) method in simpy module, we can compute the sine of x. Syntax : sympy.sin(x) Return : Returns the sine of x Code #1:Below is the example using sin() method to find sine function. # importing sympy libraryfrom sympy import * # calling sin() method o...
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Date and Time - EOMONTH Function
The EOMONTH function returns the serial number for the last day of the month that is the indicated number of months before or after start_date. EOMONTH (start_date, months) A date that represents the starting date. Dates should be entered by using the DATE function, or as results of other formulas or functions. Proble...
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Priority queue of pairs in C++ (Ordered by first)
Priority queue is an abstract data type for storing a collection of prioritized elements that supports insertion and deletion of an element based upon their priorities, that is, the element with first priority can be removed at any time. The priority queue doesn’t stores elements in linear fashion with respect to their...
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A Quick Comparison of Causal-Inference Estimates | by Rumen Iliev | Towards Data Science
1. Introduction As an experimental behavioral scientist, I always thought that understanding the causal directionality of statistical relationships is at the heart of empirical science. I was trained in classical experimental design, where the researcher is assumed to have full control over the environment and whose ma...
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How to draw a polygon in HTML5 SVG?
SVG stands for Scalable Vector Graphics and is a language for describing 2D-graphics and graphical applications in XML and the XML is then rendered by an SVG viewer. Most of the web browsers can display SVG just like they can display PNG, GIF, and JPG. To draw a polygon in HTML SVG, use the SVG <polygon> element. The <...
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How to use inline CSS (Style Sheet) in HTML?
To add inline CSS in HTML, use the style attribute. The style attribute specifies an inline style for an element. The attribute is used with CSS properties such as font-family, font-style, text-decoration, direction, etc. Just keep in mind, the usage of style attribute overrides any style set globally. It will override...
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DSA using Java - Heap
Heap represents a special tree based data structure used to represent priority queue or for heap sort. We'll going to discuss binary heap tree specifically. Binary heap tree can be classified as a binary tree with two constraints − Completeness − Binary heap tree is a complete binary tree except the last level which ma...
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Java.util.Hashtable Class
The java.util.Hashtable class implements a hashtable, which maps keys to values.Following are the important points about Hashtable − In this any non-null object can be used as a key or as a value. In this any non-null object can be used as a key or as a value. If many entries are to be made into a Hashtable, creating i...
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hidden.bs.modal Bootstrap Event
The hidden.bs.modal event in Bootstrap fires when the modal is completely hidden. Hide the modal on button click − $("#button1").click(function(){ $("#newModal").modal("hide"); }); After you will hide it, use the hidden.bs.modal Bootstrap event to generate an alert before the modal completely hides − $("#newModal").o...
[ { "code": null, "e": 1144, "s": 1062, "text": "The hidden.bs.modal event in Bootstrap fires when the modal is completely hidden." }, { "code": null, "e": 1177, "s": 1144, "text": "Hide the modal on button click −" }, { "code": null, "e": 1245, "s": 1177, "text...
Ruby | Math log() function - GeeksforGeeks
07 Jan, 2020 The log() function in Ruby returns the logarithm value of X. The second parameter is the base given by the user to which the logarithm value is returned. In case its not given, then the default base is e. Syntax: Math.log(X, base) Parameter: The function takes one mandatory parameter X whose logarithm valu...
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MySQL query to select multiple rows effectively?
You need to use index to select multiple rows effectively. Let us first create a table − mysql> create table DemoTable1501 -> ( -> Id int NOT NULL PRIMARY KEY, -> URL text -> ); Query OK, 0 rows affected (0.62 sec) Here is the query to create index − mysql> create index id_index on DemoTable1501(Id); Query ...
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HyperOpt: Hyperparameter Tuning based on Bayesian Optimization | by Fernando López | Towards Data Science
Finding the optimal hyperparameter configuration for a given function should not be based entirely on intuition or the experience of some. On the contrary, the search for such an optimal configuration must be supported by approaches that guarantee such optimality. Among so many approaches, we can find some based on exh...
[ { "code": null, "e": 659, "s": 172, "text": "Finding the optimal hyperparameter configuration for a given function should not be based entirely on intuition or the experience of some. On the contrary, the search for such an optimal configuration must be supported by approaches that guarantee such op...
How Does MySQL Process order by and limit in a Query? - GeeksforGeeks
13 Sep, 2021 In MySQL, the LIMIT clause is used with the SELECT statement to restrict the number of rows in the result set. The Limit Clause accepts one or two arguments that are offset and count. The value of both the parameters can be zero or positive integers. Syntax: SELECT column1, column2, ... FROM table_name LIM...
[ { "code": null, "e": 24836, "s": 24808, "text": "\n13 Sep, 2021" }, { "code": null, "e": 25087, "s": 24836, "text": "In MySQL, the LIMIT clause is used with the SELECT statement to restrict the number of rows in the result set. The Limit Clause accepts one or two arguments that a...
How to use null value as key in Java HashMap
Yes, you can set null as key in Java HashMap. For this, let’s first create a HashMap with key and value pair − Map<String,String>map = new HashMap<>(); map.put("Football", "A"); map.put("Squash", "B"); map.put("Cricket", "C"); map.put("Hockey", "D"); map.put("Rugby", "E"); Now, let’s add null value as key − map.put(nul...
[ { "code": null, "e": 1173, "s": 1062, "text": "Yes, you can set null as key in Java HashMap. For this, let’s first create a HashMap with key and value pair −" }, { "code": null, "e": 1336, "s": 1173, "text": "Map<String,String>map = new HashMap<>();\nmap.put(\"Football\", \"A\");...
Jackson Annotations - @JsonSubTypes
@JsonSubTypes is used to indicate subtypes of types annotated. import java.io.IOException; import com.fasterxml.jackson.annotation.JsonSubTypes; import com.fasterxml.jackson.annotation.JsonTypeInfo; import com.fasterxml.jackson.annotation.JsonTypeInfo.As; import com.fasterxml.jackson.annotation.JsonTypeName; import co...
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How to Set the Default Text of Tkinter Entry Widget? - GeeksforGeeks
11 Dec, 2020 The Tkinter Entry widget does not have any text attribute that can be used to set the default text. Therefore, default text must be added to any text field in Tkinter using the following methods: Insert method stringvar method Method 1: Using the insert method The tkinter module is imported. The root widg...
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flag.Bool() Function in Golang With Examples - GeeksforGeeks
19 May, 2020 Go language provides inbuilt support for command-line parsing and has functions that could be used to define flags to be used with a command-line program using the flag package. This package provides the flag.Bool() function which is used to define a boolean flag with the specified name, default value, and...
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Data science you need to know! A/B testing | by Michael Barber | Towards Data Science
This is part 2 of a 5-part series of posts aiming to quickly introduce some core concepts in data science and data analysis, with a specific focus on areas that I feel are overlooked or treated briefly in other materials. This post outlines A/B testing, and the steps necessary to plan and build your own robust A/B test...
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How to compare DateTime Column with only Date not time in MySQL?
To compare DateTime column with only Date, you need to use the Date() method. Following is the syntax. Below, you need to date in the 'yourDateValue': select *from yourTableName where Date(yourColumnName)='yourDateValue'; Let us first create a table: mysql> create table DemoTable ( ArrivalTime datetime ); Query OK, ...
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How to set timeout for ajax by using jQuery? - GeeksforGeeks
13 Dec, 2021 In web programming, the Ajax is used so that the resultant data is shown in the one part of the web page, without reloading the page. The user needs to perform the Ajax request and wants the result within a timeframe. In this scenario, the jquery timeout feature is used in the code. Session timeout has bee...
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Replicate elements of vector in R programming - rep() Method - GeeksforGeeks
21 Dec, 2021 In the R programming language, A very useful function for creating a vector by repeating a given numbervector with the specified number of times is the rep(). The general structure of rep() : rep(v1,n1). Here, v1 is repeated n1 times. The forms of rep() functions : rep(v1, times=) rep(v1, each=) rep(v1, le...
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How to calculate the XOR of array elements using JavaScript ? - GeeksforGeeks
15 Apr, 2020 Given an array and is the task to find the XOR of Array elements using JavaScript. There are two approaches to solve this problem which are discussed below: Simple method: It uses a simple method to access the array elements by an index number and use the loop to find the XOR of values of an Array using Ja...
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GATE | GATE CS 2019 | Question 35 - GeeksforGeeks
05 Aug, 2021 Consider the following C program: void convert(int n) { if (n < 0) printf(“ % d”, n); else { convert(n / 2); printf(“ % d”, n % 2); }} Which one of the following will happen when the function convert is called with any positive integer n as argument?(A) It will print the binary representation o...
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How to change screen background color in Pygame? - GeeksforGeeks
01 Oct, 2020 Pygame is a Python library designed to develop video games. Pygame adds functionality on top of the excellent SDL library. This allows you to create fully featured games and multimedia programs in the python language. Functions Used: pygame.init(): This function is used to initialize all the pygame modules...
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Filtering a PySpark DataFrame using isin by exclusion - GeeksforGeeks
29 Jun, 2021 In this article, we will discuss how to filter the pyspark dataframe using isin by exclusion. isin(): This is used to find the elements contains in a given dataframe, it takes the elements and gets the elements to match the data. Syntax: isin([element1,element2,.,element n) Creating Dataframe for demonstra...
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Java Program for Naive algorithm for Pattern Searching - GeeksforGeeks
11 Dec, 2018 Given a text txt[0..n-1] and a pattern pat[0..m-1], write a function search(char pat[], char txt[]) that prints all occurrences of pat[] in txt[]. You may assume that n > m. Examples: Input: txt[] = "THIS IS A TEST TEXT" pat[] = "TEST" Output: Pattern found at index 10 Input: txt[] = "AABAACAAD...
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Python | Type conversion in dictionary values - GeeksforGeeks
16 Aug, 2021 The problem of conventional type conversion is quite common and can be easily done using the built-in converters of python libraries. But sometimes, we may require the same functionality in a more complex scenario vis. for keys of list of dictionaries. Let’s discuss certain ways in which this can be achiev...
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How to Fix: Invalid value encountered in true_divide - GeeksforGeeks
22 Nov, 2021 In this article, we are going to fix, invalid values encountered in true_divide in Python. Invalid value encountered in true_divide is a Runtime Warning occurs when we perform an invalid division operation between elements of NumPy arrays. One of the examples of Invalid division is 0/0. Note: As it is ju...
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Java Program to Accept a Matrix of Order M x N & Interchange the Diagonals - GeeksforGeeks
09 Aug, 2021 Problem Description: Write a Java program that accepts a matrix of M × N order and then interchange diagonals of the matrix. Steps: 1. We can only interchange diagonals for a square matrix. 2. Create a square matrix of size [M × M]. 3. Check the matrix is a square matrix or not. If the matrix is square t...
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jQuery - add( selector ) Method
The add( selector ) method adds more elements, matched by the given selector, to the set of matched elements. Here is the simple syntax to use this method − selector.add( selector ) Here is the description of all the parameters used by this method − selector − It could be a comma-separated list of selectors to select ...
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Python 3 - String index() Method
The index() method determines if the string str occurs in string or in a substring of string, if the starting index beg and ending index end are given. This method is same as find(), but raises an exception if sub is not found. Following is the syntax for index() method − str.index(str, beg = 0 end = len(string)) str ...
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GATE | GATE-CS-2014-(Set-2) | Question 60 - GeeksforGeeks
28 Jun, 2021 Consider the following relation on subsets of the set S of integers between 1 and 2014. For two distinct subsets U and V of S we say U < V if the minimum element in the symmetric difference of the two sets is in U. Consider the following two statements: S1: There is a subset of S that is larger than every ...
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Set.size Property in JavaScript
The size property of the Set object returns number representing the number of elements in the current set object. Its Syntax is as follows Obj.size(); Live Demo <html> <head> <title>JavaScript Example</title> </head> <body> <script type="text/javascript"> const setObj = new Set(); setObj.add('Java');...
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SaltStack - Creating a Simple Environment
In this chapter, we will create a simple SaltStack environment, one salt master and two salt minions. This environment will help us to learn the salt concept in the upcoming chapters. Let us adhere to the following steps to create the SaltStack environment. VirtualBox is a cross-platform virtualization application. Vir...
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F# - Delegates
A delegate is a reference type variable that holds the reference to a method. The reference can be changed at runtime. F# delegates are similar to pointers to functions, in C or C++. Delegate declaration determines the methods that can be referenced by the delegate. A delegate can refer to a method, which have the same...
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C# program to determine if a string has all unique characters
Use the substring() method in C# to check each and every substring for unique characters. Loop it until the length of the string. If any one the substring matches another, then it would mean that the string do not have unique characters. You can try to run the following code to determine if a string has all unique char...
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How can I set an ImageView's width and height programmatically in Android?
This example demonstrates about How can I set an ImageView's width and height programmatically in Android Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. Step 2 − Add the following code to res/layout/activity_main.xml. <?xml version="1.0" ...
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How to set href attribute at runtime? - GeeksforGeeks
29 Jul, 2021 We know how to set the href attribute of the anchor tag int HTML, but sometimes we may require to set the the href attribute at runtime i.e. for example, when a user provides us a url and we want to set it at runtime. We can do this with the help of jQuery. Example 1: In this example, using jquery, we se...
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Arduino - millis () function
This function is used to return the number of milliseconds at the time, the Arduino board begins running the current program. This number overflows i.e. goes back to zero after approximately 50 days. millis () ; This function returns milliseconds from the start of the program. unsigned long time; void setup() { Se...
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Plot a circle with an edgecolor in Matplotlib
To plot a circle with an edgecolor in matplotlib, we can take the following Steps − Create a new figure or activate an existing figure using figure() method. Create a new figure or activate an existing figure using figure() method. Add a subplot method to the current axis. Add a subplot method to the current axis. Crea...
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How to draw a filled circle in OpenCV using Java?
The org.opencv.imgproc package of Java OpenCV library contains a class named Imgproc. This class provides a method named circle(), using this you can draw a circle on an image. This method provides the following parameters − A Mat object representing the image on which the circle is to be drawn. A Mat object representi...
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How to write a MySQL stored function that inserts values in a table?
As we know that function is best used when we want to return a result. Hence, when we will create stored functions for manipulating tables like to Insert or Update values then it would be more or less like stored procedures. In the following example we are creating a stored function named ‘tbl_insert’ which will insert...
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Java DIP - GrayScale Conversion
In order to convert a color image to Grayscale image, you need to read pixels or data of the image using File and ImageIO objects, and store the image in BufferedImage object. Its syntax is given below − File input = new File("digital_image_processing.jpg"); BufferedImage image = ImageIO.read(input); Further, get the...
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Python Bokeh - Plotting Triangles on a Graph - GeeksforGeeks
10 Jul, 2020 Bokeh is a Python interactive data visualization. It renders its plots using HTML and JavaScript. It targets modern web browsers for presentation providing elegant, concise construction of novel graphics with high-performance interactivity. Bokeh can be used to plot triangles on a graph. Plotting triangles...
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JasmineJS - Equality Check
Jasmine provides plenty of methods which help us check the equality of any JavaScript function and file. Following are some examples to check equality conditions. ToEqual() is the simplest matcher present in the inbuilt library of Jasmine. It just matches whether the result of the operation given as an argument to this...
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Errorbar graph in Python using Matplotlib - GeeksforGeeks
14 Jan, 2022 Error bars function used as graphical enhancement that visualizes the variability of the plotted data on a Cartesian graph. Error bars can be applied to graphs to provide an additional layer of detail on the presented data. As you can see in below graphs. Error bars help you indicate estimated error or un...
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How to catch ArithmeticError Exception in Python?
ArithmeticError Exception is the base class for all errors that occur for numeric calculations. It is the base class for those built-in exceptions like: OverflowError, ZeroDivisionError, FloatingPointError We can catch the exception in given code as follows import sys try: 7/0 except ArithmeticError as e: print e print...
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A Complete Overview of GPT-3 — The Largest Neural Network Ever Created | by Alberto Romero | Towards Data Science
In May 2020, Open AI published a groundbreaking paper titled Language Models Are Few-Shot Learners. They presented GPT-3, a language model that holds the record for being the largest neural network ever created with 175 billion parameters. It’s an order of magnitude larger than the largest previous language models. GPT...
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Pandas.DataFrame.hist() function in Python - GeeksforGeeks
01 Oct, 2020 Pandas.DataFrame.hist() function is useful in understanding the distribution of numeric variables. This function splits up the values into the numeric variables. Its main functionality is to make the Histogram of a given Data frame. The distribution of data is represented by Histogram. When Function Panda...
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Dynamic Programming in RL. Towards Training Better Reinforcement... | by Rohan Jagtap | Towards Data Science
Dynamic Programming is a mathematical optimization approach typically used to improvise recursive algorithms. It basically involves simplifying a large problem into smaller sub-problems. There are two properties that a problem must exhibit to be solved using dynamic programming: Overlapping SubproblemsOptimal Substruct...
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Program for volume of Pyramid in C++
Given with sides depending upon the type of base of pyramid the task is to calculate the volume of pyramid. Pyramid is a 3-D figure whose outer surfaces are triangular meeting at the common point forming the sharp edge of pyramid. Volume of pyramid depends upon the type of base it will have. There are different types o...
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How to find distinct values of multiple columns in PySpark ? - GeeksforGeeks
04 Jul, 2021 In this article, we will discuss how to find distinct values of multiple columns in PySpark dataframe. Let’s create a sample dataframe for demonstration: Python3 # importing moduleimport pyspark # importing sparksession from pyspark.sql modulefrom pyspark.sql import SparkSession # creating sparksession a...
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Find the winner of a game of removing any number of stones from the least indexed non-empty pile from given N piles - GeeksforGeeks
17 Jun, 2021 Given an array arr[] consisting of N integers, each representing size of a pile of stones. The task is to determine the winner of the game when two players, A and B, play a game optimally as per the following conditions: Player A always starts the game. In one move, a player may remove any number of stones...
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HTML - Header
We have learnt that a typical HTML document will have following structure − Document declaration tag <html> <head> Document header related tags </head> <body> Document body related tags </body> </html> This chapter will give a little more detail about header part which is represented b...
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Can we execute a java program without a main method?
Yes, we can execute a java program without a main method by using a static block. Static block in Java is a group of statements that gets executed only once when the class is loaded into the memory by Java ClassLoader, It is also known as a static initialization block. Static initialization block is going directly int...
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Creating a Simple Web Application
This chapter explains how to create a simple application in Symfony framework. As discussed earlier, you know how to create a new project in Symfony. We can take an example of “student” details. Let’s start by creating a project named “student” using the following command. symfony new student After executing the comma...
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How to use CardMedia Component in ReactJS? - GeeksforGeeks
05 Mar, 2021 The CardMedia Component allows users to use the media for that particular card like attaching photos, videos, etc. Material UI for React has this component available for us, and it is very easy to integrate. We can use the CardMedia component in ReactJS using the following approach. Creating React Applicat...
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Converting Roman Numerals to Decimal lying between 1 to 3999
04 Jul, 2022 Given a Roman numeral, the task is to find its corresponding decimal value. Example : Input: IX Output: 9 IX is a Roman symbol which represents 9 Input: XL Output: 40 XL is a Roman symbol which represents 40 Input: MCMIV Output: 1904 M is a thousand, CM is nine hundred and IV is four Roman numerals a...
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Tutorial on Binary Tree - GeeksforGeeks
08 Apr, 2021 The tree is a hierarchical Data Structure. A binary tree is a tree that has at most two children. The node which is on the left of the Binary Tree is called “Left-Child” and the node which is the right is called “Right-Child”. Also, the smaller tree or the subtree in the left of the root node is called the...
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Node.js External HTTP call
Theory of Computation It is often necessary for a network application to make external HTTP calls. HTTP servers are also often called upon to perform HTTP services for clients making requests. Node provides an easy interface for making external HTTP calls. For example, the following code will fetch the front page of go...
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Git Staging Environment
One of the core functions of Git is the concepts of the Staging Environment, and the Commit. As you are working, you may be adding, editing and removing files. But whenever you hit a milestone or finish a part of the work, you should add the files to a Staging Environment. Staged files are files that are ready to be ...
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How to add time in minutes in datetime string PHP?
For this, you can use the strtotime() method. The syntax is as follows − $anyVariableName= strtotime('anyDateValue + X minute'); You can put the integer value in place of X. The PHP code is as follows Live Demo <!DOCTYPE html> <html> <body> <?php $addingFiveMinutes= strtotime('2020-10-30 10:10:20 + 5 minute'); echo da...
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Python for Finance: Stock Portfolio Analyses | by Kevin Boller | Towards Data Science
My two most recent blog posts were about Scaling Analytical Insights with Python; part 1 can be found here and part 2 can be found here. It has been several months since I wrote those, largely due to the fact that I relocated my family to Seattle to join Amazon in November; I’ve spent most of the time on my primary pro...
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Count consecutive pairs of same elements - GeeksforGeeks
03 Jun, 2021 Given an array arr[], the task is to count the number of pairs formed by consecutive elements in which both of the elements in a pair are same.Examples: Input: arr[] = {1, 2, 2, 3, 4, 4, 5, 5, 5, 5} Output: 5 (1, 2), (4, 5), (6, 7), (7, 8) and (8, 9) are the valid index pairs where consecutive elements a...
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Program to find the Hidden Number
25 May, 2022 Given an array of integers, The task is to find another integer such that, if all the elements of the array are subtracted individually from the number , then the sum of all the differences should add to 0. If any such integer exists, print the value of , else print . Example Input: arr[] = {1, 2, 3} Out...
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Turn an Array into a Column Vector in MATLAB
04 Jul, 2021 Conversion of an Array into a Column Vector. This conversion can be done using a(:) operation. A(:) reshapes all elements of A into a single column vector. This has no effect if A is already a column vector. Example 1 Matlab % MATLAB code for Conversion of an array % into a column vectora = [2 4 6 8] % I...
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Count pairs in array such that one element is reverse of another
03 Jun, 2021 Given an array arr[], the task is to count the pairs in the array such that the elements are the reverse of each other. Examples: Input: arr[] = { 16, 61, 12, 21, 25 } Output: 2 Explanation: The 2 pairs such that one number is the reverse of the other are {16, 61} and {12, 21}. Input: arr[] = {10, 11, 12}...
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What is data type of FILE in C ?
26 May, 2022 Prerequisite : Basics of File Handling In C language, while file handling is done a word FILE is used. What is FILE? Example FILE *fp1, *fp2; While doing file handling we often use FILE for declaring the pointer in order to point to the file we want to read from or to write on. As we are declaring the poin...
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How to select and order multiple columns in Pyspark DataFrame ?
06 Jun, 2021 In this article, we will discuss how to select and order multiple columns from a dataframe using pyspark in Python. For this, we are using sort() and orderBy() functions along with select() function. Select(): This method is used to select the part of dataframe columns and return a copy of that newly selec...
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Ruby | Random rand() function
17 Dec, 2019 Random#rand() : rand() is a Random class method which generates a random value. Syntax: Random.rand() Parameter: Random values Return: generates a random value. Example #1 : # Ruby code for Random.rand() method # declaring Random valuedate_a = Random.rand() # new arbitrary random valueputs "Random form :...
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Python Daemon Threads
17 Aug, 2021 The threads which are always going to run in the background that provides supports to main or non-daemon threads, those background executing threads are considered as Daemon Threads. The Daemon Thread does not block the main thread from exiting and continues to run in the background. This article is based ...
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When are static objects destroyed?
21 Jun, 2017 Remain Careful from these two personsnew friends and old enemies — Kabir What is static keyword in C++?static keyword can be applied to local variables, functions, class’ data members and objects in C++. static local variable retain their values between function call and initialized only once. static funct...
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HTML | Computer Code Elements
22 Dec, 2021 The computer has a unique formatting and text style for displaying the messages related to codes. The <code> tag is used to display the computer code on the website. There are number of elements available to mark up computer code using HTML.<code> Tag: The <code> tag in HTML is used to define the piece of ...
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How to check an array is multidimensional or not in PHP ?
12 Jul, 2019 Given an array (single-dimensional or multi-dimensional) and the task is to check the given array is multi-dimensional or not. There are few methods to check an array is multi-dimensional or not. The function count() and count_recursive() will give wrong result if the array containing a sub-array which is ...
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How to use Array Reverse Sort Functions for Integer and Strings in Golang?
17 May, 2020 Go language provides inbuilt support implementation of basic constants and run-time reflection to operate sort package. Golang is the ability for functions to run independently of each other. With the help of this function we can easily sort integer and string by importing “sort” package. Basically, this w...
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React Native Tab Navigation Component
14 Jun, 2021 In this article, we are going to see how to implement Tab Navigation in react-native. For this, we are going to use createBottomTabNavigator component. It is basically used for navigation from one page to another. These days mobile apps are made up of a single screen, so create various navigation component...
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How to change opacity while scrolling the page?
04 Oct, 2019 jQuery is used to control and change the opacity during the scrolling of web page. Create a web pages to change the opacity while scrolling the page. The jQuery scroll function is used to scroll the web page and set opacity of text content.Example: <!-- HTML code to change the opacity of web page when s...
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Round the given number to nearest multiple of 10
15 Jun, 2022 Given a positive integer n, round it to nearest whole number having zero as last digit. Examples: Input : 4722 Output : 4720 Input : 38 Output : 40 Input : 10 Output: 10 Approach: Let’s round down the given number n to the nearest integer which ends with 0 and store this value in a variable a. a = (n / ...
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Solidity – Fall Back Function
11 May, 2022 The solidity fallback function is executed if none of the other functions match the function identifier or no data was provided with the function call. Only one unnamed function can be assigned to a contract and it is executed whenever the contract receives plain Ether without any data. To receive Ether an...
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How to find the sum of non-missing values in an R data frame column?
To find the sum of non-missing values in an R data frame column, we can simply use sum function and set the na.rm to TRUE. For example, if we have a data frame called df that contains a column say x which has some missing values then the sum of the non-missing values can be found by using the command sum(df$x,na.rm=TRU...
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Implementing an Autoencoder in PyTorch
07 Jul, 2022 Autoencoders are a type of neural network which generates an “n-layer” coding of the given input and attempts to reconstruct the input using the code generated. This Neural Network architecture is divided into the encoder structure, the decoder structure, and the latent space, also known as the “bottleneck...
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React.js displayName
31 Mar, 2021 The displayName string is used in debugging messages. It’s usually not necessary to set it explicitly because the name of the function or class that describes the component infers it. If you wish to show a different name for debugging purposes or when you build a higher-order component, you may want to set...
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Pylint module in Python
18 Apr, 2022 We often get stuck in the middle or encounter errors when we code/run some programs. We usually surf the internet for help and make our code run. But how do we understand the published code on the internet? Some of the typical answers to this question are docstrings, articles written above that code.., One...
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How to fetch data from JSON file and display in HTML table using jQuery ?
01 Jul, 2022 The task is to fetch data from the given JSON file and convert data into an HTML table. Approach: We have a JSON file containing data in the form of an array of objects. In our code, we are using jQuery to complete our task. The jQuery code uses getJSON() method to fetch the data from the file’s location u...
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Expected SARSA in Reinforcement Learning
28 Apr, 2021 Prerequisites: SARSASARSA and Q-Learning technique in Reinforcement Learning are algorithms that uses Temporal Difference(TD) Update to improve the agent’s behaviour. Expected SARSA technique is an alternative for improving the agent’s policy. It is very similar to SARSA and Q-Learning, and differs in the ...
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vector :: assign() in C++ STL
09 Jun, 2022 vector:: assign() is an STL in C++ which assigns new values to the vector elements by replacing old ones. It can also modify the size of the vector if necessary. The syntax for assigning constant values: vectorname.assign(int size, int value) Parameters: size - number of values to be assigned value - va...
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Relationship between grammar and language in Theory of Computation
20 Nov, 2019 A grammar is a set of production rules which are used to generate strings of a language. In this article, we have discussed how to find the language generated by a grammar and vice versa as well. Given a grammar G, its corresponding language L(G) represents the set of all strings generated from G. Consider...
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How to merge multiple excel files into a single files with Python ?
07 Mar, 2022 Normally, we’re working with Excel files, and we surely have come across a scenario where we need to merge multiple Excel files into one. The traditional method has always been using a VBA code inside excel which does the job but is a multi-step process and is not so easy to understand. Another method is m...
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Remove all leaf nodes from the binary search tree
16 Mar, 2022 We have given a binary search tree and we want to delete the leaf nodes from the binary search tree. Examples: Input : 20 10 5 15 30 25 35 Output : Inorder before Deleting the leaf node 5 10 15 20 25 30 35 Inorder after Deleting the leaf node 10 20 30 This is the binar...
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Python: Inplace Editing using FileInput
19 Feb, 2020 Python3’s fileinput provides many useful features that can be used to do many things without lots of code. It comes handy in many places but in this article, we’ll use the fileinput to do in-place editing in a text file. Basically we’ll be changing the text in a text file without creating any other file or...
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JavaScript - The Arrays Object
The Array object lets you store multiple values in a single variable. It stores a fixed-size sequential collection of elements of the same type. An array is used to store a collection of data, but it is often more useful to think of an array as a collection of variables of the same type. Use the following syntax to cre...
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Accessing Census Data with Python | by Jackson Gilkey | Towards Data Science
With the 2020 Census already underway and the coming redistricting accessing and understanding public Census data is more relevant than ever. This post will guide you through getting your hands on the data using a Python package called CensusData to import the data into Pandas There are 5 data sets available through Ce...
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