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Mapping the letter of a string to an object of arrays - JavaScript | Given a string, we are required to write a function that creates an object that stores the indexes of each letter in an array. The letters (elements) of the string must be the keys of object
The indexes should be stored in an array and those arrays are values.
For example −
If the input string is −
const str = 'cannot'... | [
{
"code": null,
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"text": "Given a string, we are required to write a function that creates an object that stores the indexes of each letter in an array. The letters (elements) of the string must be the keys of object"
},
{
"code": null,
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... |
Python program to sort a list of tuples alphabetically - GeeksforGeeks | 11 May, 2020
Given a list of tuples, write a Python program to sort the tuples alphabetically by the first item of each tuple.
Examples:
Input: [("Amana", 28), ("Zenat", 30), ("Abhishek", 29), ("Nikhil", 21), ("B", "C")]
Output: [('Amana', 28), ('Abhishek', 29), ('B', 'C'), ('Nikhil', 21), ('Zenat', 30)]
Input: [("aaa... | [
{
"code": null,
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"s": 26163,
"text": "\n11 May, 2020"
},
{
"code": null,
"e": 26305,
"s": 26191,
"text": "Given a list of tuples, write a Python program to sort the tuples alphabetically by the first item of each tuple."
},
{
"code": null,
"e": 26315,
"... |
Ordinary Least Squares (OLS) using statsmodels - GeeksforGeeks | 10 Mar, 2022
In this article, we will use Python’s statsmodels module to implement Ordinary Least Squares(OLS) method of linear regression.Introduction : A linear regression model establishes the relation between a dependent variable(y) and at least one independent variable(x) as : In OLS method, we have to choose the ... | [
{
"code": null,
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"s": 25996,
"text": "\n10 Mar, 2022"
},
{
"code": null,
"e": 26775,
"s": 26024,
"text": "In this article, we will use Python’s statsmodels module to implement Ordinary Least Squares(OLS) method of linear regression.Introduction : A linear regression mo... |
One Hot Encoding using Tensorflow - GeeksforGeeks | 02 Sep, 2020
In this post, we will be seeing how to initialize a vector in TensorFlow with all zeros or ones. The function you will be calling is tf.ones(). To initialize with zeros you could use tf.zeros() instead. These functions take in a shape and return an array full of zeros and ones accordingly.
Code:
import ten... | [
{
"code": null,
"e": 26011,
"s": 25983,
"text": "\n02 Sep, 2020"
},
{
"code": null,
"e": 26302,
"s": 26011,
"text": "In this post, we will be seeing how to initialize a vector in TensorFlow with all zeros or ones. The function you will be calling is tf.ones(). To initialize with ... |
Sets difference() function | Guava | Java - GeeksforGeeks | 15 Nov, 2018
Guava’s Sets.difference() returns an unmodifiable view of the difference of two sets.
Syntax:
public static <E>
Sets.SetView<E>
difference(Set<E> set1,
Set<?> set2)
Return Value: This method returns a set containing all elements that are contained by set1 and not contained by set2.
... | [
{
"code": null,
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"s": 25197,
"text": "\n15 Nov, 2018"
},
{
"code": null,
"e": 25311,
"s": 25225,
"text": "Guava’s Sets.difference() returns an unmodifiable view of the difference of two sets."
},
{
"code": null,
"e": 25319,
"s": 25311,
"text": "Synt... |
Largest interval in an Array that contains the given element X for Q queries - GeeksforGeeks | 20 May, 2021
Given an array arr[] of N elements and Q queries of the form [X]. For each query, the task is to find the largest interval [L, R] of the array such that the greatest element in the interval is arr[X], such that 1 ≤ L ≤ X ≤ R. Note: The array has 1-based indexing.
Examples:
Input: N = 5, arr[] = {2, 1, 2, ... | [
{
"code": null,
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"s": 25979,
"text": "\n20 May, 2021"
},
{
"code": null,
"e": 26271,
"s": 26007,
"text": "Given an array arr[] of N elements and Q queries of the form [X]. For each query, the task is to find the largest interval [L, R] of the array such that the greate... |
Find maximum possible stolen value from houses - GeeksforGeeks | 05 May, 2022
There are n houses build in a line, each of which contains some value in it. A thief is going to steal the maximal value of these houses, but he can’t steal in two adjacent houses because the owner of the stolen houses will tell his two neighbors left and right side. What is the maximum stolen value?Exampl... | [
{
"code": null,
"e": 26131,
"s": 26103,
"text": "\n05 May, 2022"
},
{
"code": null,
"e": 26444,
"s": 26131,
"text": "There are n houses build in a line, each of which contains some value in it. A thief is going to steal the maximal value of these houses, but he can’t steal in two... |
How Java 8 Helps in Improving Performance of HashMap? - GeeksforGeeks | 17 Jun, 2021
Here we will be discussing out how we can, we improve the performance while using HashMap in Java, the Importance of the hashCode() contract and why is it very important to have an efficient hashcode, and what happens when we use an in-efficient hashcode. Let us directly roll over to implementing the same ... | [
{
"code": null,
"e": 25225,
"s": 25197,
"text": "\n17 Jun, 2021"
},
{
"code": null,
"e": 25597,
"s": 25225,
"text": "Here we will be discussing out how we can, we improve the performance while using HashMap in Java, the Importance of the hashCode() contract and why is it very imp... |
Python - PyTorch clamp() method - GeeksforGeeks | 26 May, 2020
PyTorch torch.clamp() method clamps all the input elements into the range [ min, max ] and return a resulting tensor.
Syntax: torch.clamp(inp, min, max, out=None)
Arguments
inp: This is input tensor.
min: This is a number and specifies the lower-bound of the range to which input to be clamped.
max: This is... | [
{
"code": null,
"e": 25799,
"s": 25771,
"text": "\n26 May, 2020"
},
{
"code": null,
"e": 25917,
"s": 25799,
"text": "PyTorch torch.clamp() method clamps all the input elements into the range [ min, max ] and return a resulting tensor."
},
{
"code": null,
"e": 25962,
... |
Image based Steganography using Python - GeeksforGeeks | 20 Aug, 2020
Steganography is the method of hiding secret data in any image/audio/video. In a nutshell, the main motive of steganography is to hide the intended information within any image/audio/video that doesn’t appear to be secret just by looking at it.The idea behind image-based Steganography is very simple. Image... | [
{
"code": null,
"e": 25937,
"s": 25909,
"text": "\n20 Aug, 2020"
},
{
"code": null,
"e": 26468,
"s": 25937,
"text": "Steganography is the method of hiding secret data in any image/audio/video. In a nutshell, the main motive of steganography is to hide the intended information wit... |
How to redirect to another webpage in HTML? - GeeksforGeeks | 24 Apr, 2019
It is often required to redirect to another webpage on loading a webpage, for example, due to the contents being moved to the new webpage.
Demonstrated here are two simple methods to redirect to another webpage on load.
Method-1: Using http-equiv attribute of the meta tag in HTML.
Syntax:
<meta http-equiv=... | [
{
"code": null,
"e": 25617,
"s": 25589,
"text": "\n24 Apr, 2019"
},
{
"code": null,
"e": 25756,
"s": 25617,
"text": "It is often required to redirect to another webpage on loading a webpage, for example, due to the contents being moved to the new webpage."
},
{
"code": nu... |
Python - Read CSV Columns Into List - GeeksforGeeks | 17 Sep, 2021
CSV file stores tabular data (numbers and text) in plain text. Each line of the file is a data record. Each record consists of one or more fields, separated by commas. The use of the comma as a field separator is the source of the name for this file format. In this article, we will read data from a CSV fil... | [
{
"code": null,
"e": 26269,
"s": 26241,
"text": "\n17 Sep, 2021"
},
{
"code": null,
"e": 26654,
"s": 26269,
"text": "CSV file stores tabular data (numbers and text) in plain text. Each line of the file is a data record. Each record consists of one or more fields, separated by com... |
Maximum in array which is at-least twice of other elements - GeeksforGeeks | 09 Apr, 2021
Given an array of integers of length n. Our task is to return the index of the max element if the it is at least twice as much as every other number in the array. If the max element does not satisfy the condition return -1.Examples:
Input : arr = {3, 6, 1, 0}
Output : 1
Here, 6 is the largest integer, an... | [
{
"code": null,
"e": 26155,
"s": 26127,
"text": "\n09 Apr, 2021"
},
{
"code": null,
"e": 26390,
"s": 26155,
"text": "Given an array of integers of length n. Our task is to return the index of the max element if the it is at least twice as much as every other number in the array. ... |
Python | Sort list of list by specified index - GeeksforGeeks | 23 Dec, 2018
We can sort list of list using the conventional sort function. This sorts the list by the first index of lists. But more than often there can be circumstances that requires the sorting of list of list by other index elements than first. Lets discuss certain ways in which this task can be performed.
Method ... | [
{
"code": null,
"e": 25493,
"s": 25465,
"text": "\n23 Dec, 2018"
},
{
"code": null,
"e": 25793,
"s": 25493,
"text": "We can sort list of list using the conventional sort function. This sorts the list by the first index of lists. But more than often there can be circumstances that... |
Tailwind CSS Font Size - GeeksforGeeks | 23 Mar, 2022
This class accepts lots of value in tailwind CSS in which all the properties are covered as in class form. It is the alternative to the CSS font-size property. This class is used to set the font size of the text in an HTML document.
Font size classes:
text-xs: This class defines the text size as extra sma... | [
{
"code": null,
"e": 37385,
"s": 37357,
"text": "\n23 Mar, 2022"
},
{
"code": null,
"e": 37619,
"s": 37385,
"text": "This class accepts lots of value in tailwind CSS in which all the properties are covered as in class form. It is the alternative to the CSS font-size property. Th... |
Queries to find Kth greatest character in a range [L, R] from a string with updates - GeeksforGeeks | 22 Nov, 2021
Given a string str of length N, and Q queries of the following two types:
(1 L R K): Find the Kth greatest character (non-distinct) from the range of indices [L, R] (1-based indexing)(2 J C): Replace the Jth character from the string by character C.
(1 L R K): Find the Kth greatest character (non-distinct)... | [
{
"code": null,
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"s": 26791,
"text": "\n22 Nov, 2021"
},
{
"code": null,
"e": 26893,
"s": 26819,
"text": "Given a string str of length N, and Q queries of the following two types:"
},
{
"code": null,
"e": 27069,
"s": 26893,
"text": "(1 L R K): Find ... |
C Program For Finding The Middle Element Of A Given Linked List - GeeksforGeeks | 08 Dec, 2021
Given a singly linked list, find the middle of the linked list. For example, if the given linked list is 1->2->3->4->5 then the output should be 3. If there are even nodes, then there would be two middle nodes, we need to print the second middle element. For example, if given linked list is 1->2->3->4->5->... | [
{
"code": null,
"e": 25531,
"s": 25503,
"text": "\n08 Dec, 2021"
},
{
"code": null,
"e": 25870,
"s": 25531,
"text": "Given a singly linked list, find the middle of the linked list. For example, if the given linked list is 1->2->3->4->5 then the output should be 3. If there are ev... |
How to Run a Python Script using Docker? - GeeksforGeeks | 14 Apr, 2022
The task is to build a docker image and execute a python script that adds two given numbers. This has been achieved via a series of steps.
We will be creating a Folder docker_2 at the desktop location in our PC . Inside the Folder another Folder called docker_assignment is created. Then two files dockerfil... | [
{
"code": null,
"e": 25779,
"s": 25751,
"text": "\n14 Apr, 2022"
},
{
"code": null,
"e": 25918,
"s": 25779,
"text": "The task is to build a docker image and execute a python script that adds two given numbers. This has been achieved via a series of steps."
},
{
"code": nu... |
Chomsky Hierarchy in Theory of Computation - GeeksforGeeks | 10 May, 2022
According to Chomsky hierarchy, grammar is divided into 4 types as follows:
Type 0 is known as unrestricted grammar.Type 1 is known as context-sensitive grammar.Type 2 is known as a context-free grammar.Type 3 Regular Grammar.
Type 0 is known as unrestricted grammar.
Type 1 is known as context-sensitive g... | [
{
"code": null,
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"s": 31051,
"text": "\n10 May, 2022"
},
{
"code": null,
"e": 31156,
"s": 31079,
"text": "According to Chomsky hierarchy, grammar is divided into 4 types as follows: "
},
{
"code": null,
"e": 31307,
"s": 31156,
"text": "Type 0 is kno... |
Set the width of an element to 100% in Bootstrap | To set the width of an element to 100%, use the .w-100 class in Bootstrap.
You can try to run the following code to set element’s width
Live Demo
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Example</title>
<link rel = "stylesheet" href = "https://maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.m... | [
{
"code": null,
"e": 1137,
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"text": "To set the width of an element to 100%, use the .w-100 class in Bootstrap."
},
{
"code": null,
"e": 1198,
"s": 1137,
"text": "You can try to run the following code to set element’s width"
},
{
"code": null,
"e": 1208,
... |
Program to count number of points that lie on a line in Python | Suppose we have a list of coordinates. Each coordinate has two values x and y, representing a point on the Cartesian plane. Now find the maximum number of points that lie on some line.
So, if the input is like coordinates = [[6, 2],[8, 3],[10, 4],[1, 1],[2, 2],[6, 6],[7, 7]], then the output will be 4, as the points ar... | [
{
"code": null,
"e": 1247,
"s": 1062,
"text": "Suppose we have a list of coordinates. Each coordinate has two values x and y, representing a point on the Cartesian plane. Now find the maximum number of points that lie on some line."
},
{
"code": null,
"e": 1437,
"s": 1247,
"text"... |
Python Web Scraping - Data Processing | In earlier chapters, we learned about extracting the data from web pages or web scraping by various Python modules. In this chapter, let us look into various techniques to process the data that has been scraped.
To process the data that has been scraped, we must store the data on our local machine in a particular forma... | [
{
"code": null,
"e": 2124,
"s": 1912,
"text": "In earlier chapters, we learned about extracting the data from web pages or web scraping by various Python modules. In this chapter, let us look into various techniques to process the data that has been scraped."
},
{
"code": null,
"e": 2301... |
JasmineJS - Inequality Check | Till now, we have discussed different methods in Jasmine which help us test different scenarios based on our requirements. In this chapter, we will learn about different matchers that will help us check the inequality condition in JS file. Following are the matchers used for this purpose.
As the name suggests this matc... | [
{
"code": null,
"e": 2340,
"s": 2050,
"text": "Till now, we have discussed different methods in Jasmine which help us test different scenarios based on our requirements. In this chapter, we will learn about different matchers that will help us check the inequality condition in JS file. Following are... |
I created a Deep Learning powered Discord Bot to react with smily 😎 | by Anurag Bhattacharjee | Towards Data Science | I have been reading a lot of paper articles lately, mostly on Deep Learning, RNN, CNN, LSTM[1], Transformer(Attention is all you need)[3], BERT etc. The list is only growing. But the best way to learn anything is to experience it. And also if I deploy a bot with my face, in my office server it can give proxy for me som... | [
{
"code": null,
"e": 634,
"s": 172,
"text": "I have been reading a lot of paper articles lately, mostly on Deep Learning, RNN, CNN, LSTM[1], Transformer(Attention is all you need)[3], BERT etc. The list is only growing. But the best way to learn anything is to experience it. And also if I deploy a b... |
C# Program to count vowels in a string | You need to check for both the vowels and consonants, but do not forget to check for both the uppercase as well lowercase.
For counting vowels, check for “aeiou” characters separately i.e.
if (myStr[i] == 'a' || myStr[i] == 'e' || myStr[i] == 'i' || myStr[i] == 'o' || myStr[i] == 'u' || myStr[i] == 'A' || myStr[i] == '... | [
{
"code": null,
"e": 1185,
"s": 1062,
"text": "You need to check for both the vowels and consonants, but do not forget to check for both the uppercase as well lowercase."
},
{
"code": null,
"e": 1251,
"s": 1185,
"text": "For counting vowels, check for “aeiou” characters separatel... |
for loop in java | A for loop is a repetition control structure that allows you to efficiently write a loop that needs to be executed a specific number of times.
A for loop is useful when you know how many times a task is to be repeated.
The syntax of a for loop is −
for(initialization; Boolean_expression; update) {
// Statements
}
H... | [
{
"code": null,
"e": 2520,
"s": 2377,
"text": "A for loop is a repetition control structure that allows you to efficiently write a loop that needs to be executed a specific number of times."
},
{
"code": null,
"e": 2596,
"s": 2520,
"text": "A for loop is useful when you know how ... |
Computer Vision — Auto grading Handwritten Mathematical Answersheets | by Divyaprabha M | Towards Data Science | Grading is an essential part of education. Assessing each answer sheet manually, offering fair, unbiased and valid grade is difficult most of the time. This article is about my internship project with my mentor Bijon Guha on building a computer vision model that will automatically evaluate the answer sheets thereby ens... | [
{
"code": null,
"e": 561,
"s": 172,
"text": "Grading is an essential part of education. Assessing each answer sheet manually, offering fair, unbiased and valid grade is difficult most of the time. This article is about my internship project with my mentor Bijon Guha on building a computer vision mod... |
How to create Horizontal Slider in Java? | To create Horizontal slider in Java, use the Swing JSlider. Let us first create a frame and a Horizontal slider in it −
JFrame frame = new JFrame("Frame with Slider");
JSlider slider = new JSlider(JSlider.HORIZONTAL, 0, 100, 70);
Now, we will set the values for the slider. Display the ticks −
slider.setMinorTickSpacing... | [
{
"code": null,
"e": 1182,
"s": 1062,
"text": "To create Horizontal slider in Java, use the Swing JSlider. Let us first create a frame and a Horizontal slider in it −"
},
{
"code": null,
"e": 1292,
"s": 1182,
"text": "JFrame frame = new JFrame(\"Frame with Slider\");\nJSlider sli... |
Comparing two strings in MySQL? | To compare two strings, which are numbers, let us first create a table. Following is the query −
mysql> create table compareTwoStringsDemo
-> (
-> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,
-> Value varchar(100)
-> );
Query OK, 0 rows affected (0.52 sec)
Following is the query to insert some records in the... | [
{
"code": null,
"e": 1159,
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"text": "To compare two strings, which are numbers, let us first create a table. Following is the query −"
},
{
"code": null,
"e": 1330,
"s": 1159,
"text": "mysql> create table compareTwoStringsDemo\n -> (\n -> Id int NOT NULL AUTO_INCREM... |
DB2 - Schemas | This chapter introduces and describes the concept of Schema.
A schema is a collection of named objects classified logically in the database.
In a database, you cannot create multiple database objects with same name. To do so, the schema provides a group environment. You can create multiple schemas in a database and you... | [
{
"code": null,
"e": 1989,
"s": 1928,
"text": "This chapter introduces and describes the concept of Schema."
},
{
"code": null,
"e": 2069,
"s": 1989,
"text": "A schema is a collection of named objects classified logically in the database."
},
{
"code": null,
"e": 2332... |
WebGL - Basics | WebGL is mostly a low-level rasterization API rather than a 3D API. To draw an image using WebGL, you have to pass a vector representing the image. It then converts the given vector into pixel format using OpenGL SL and displays the image on the screen. Writing a WebGL application involves a set of steps which
we would... | [
{
"code": null,
"e": 2399,
"s": 2047,
"text": "WebGL is mostly a low-level rasterization API rather than a 3D API. To draw an image using WebGL, you have to pass a vector representing the image. It then converts the given vector into pixel format using OpenGL SL and displays the image on the screen.... |
Redis - Transactions | Redis transactions allow the execution of a group of commands in a single step. Following are the two properties of Transactions.
All commands in a transaction are sequentially executed as a single isolated operation. It is not possible that a request issued by another client is served in the middle of the execution of... | [
{
"code": null,
"e": 2175,
"s": 2045,
"text": "Redis transactions allow the execution of a group of commands in a single step. Following are the two properties of Transactions."
},
{
"code": null,
"e": 2387,
"s": 2175,
"text": "All commands in a transaction are sequentially execu... |
How to Compare Large Files. Learn how to use Python to compare big... | by Costas Andreou | Towards Data Science | In this blog, we are going to learn how to compare two large files together while creating a quick and meaningful summary of the differences. I’ve structured this blog in such a way that you can follow a step by step guide in the end to end solution.
In general, comparing two data sets is not very difficult. The main d... | [
{
"code": null,
"e": 423,
"s": 172,
"text": "In this blog, we are going to learn how to compare two large files together while creating a quick and meaningful summary of the differences. I’ve structured this blog in such a way that you can follow a step by step guide in the end to end solution."
}... |
10 Minutes to Building a Machine Learning Pipeline with Apache Airflow | by Binh Phan | Towards Data Science | Often, when you think about Machine Learning, you tend to think about the great models that you can now create. If you want to take these amazing models and make them available to the world, you will have to move beyond just training the model and incorporating data collection, feature engineering, training, evaluating... | [
{
"code": null,
"e": 382,
"s": 47,
"text": "Often, when you think about Machine Learning, you tend to think about the great models that you can now create. If you want to take these amazing models and make them available to the world, you will have to move beyond just training the model and incorpor... |
ClipOval widget in Flutter - GeeksforGeeks | 21 Oct, 2020
ClipOval widget clips the child widget in oval or circle shape. We can reshape the child widget by changing width and height. If width and height are equal the shape will be circular. If the width and height are given differently then the shape will be oval. Let’s understand this with the help of an exampl... | [
{
"code": null,
"e": 24034,
"s": 24006,
"text": "\n21 Oct, 2020"
},
{
"code": null,
"e": 24344,
"s": 24034,
"text": "ClipOval widget clips the child widget in oval or circle shape. We can reshape the child widget by changing width and height. If width and height are equal the sha... |
java.time.LocalDateTime.truncatedTo() Method Example | The java.time.LocalDateTime.truncatedTo(TemporalUnit unit) method returns a copy of this LocalDateTime with the time truncated.
Following is the declaration for java.time.LocalDateTime.truncatedTo(TemporalUnit unit) method.
public LocalDateTime truncatedTo(TemporalUnit unit)
unit − the unit to truncate to, not null.
a... | [
{
"code": null,
"e": 2043,
"s": 1915,
"text": "The java.time.LocalDateTime.truncatedTo(TemporalUnit unit) method returns a copy of this LocalDateTime with the time truncated."
},
{
"code": null,
"e": 2139,
"s": 2043,
"text": "Following is the declaration for java.time.LocalDateTi... |
Angular 4 - Environment Setup | In this chapter, we will discuss the Environment Setup required for Angular 4. To install Angular 4, we require the following −
Nodejs
Npm
Angular CLI
IDE for writing your code
Nodejs has to be greater than 4 and npm has to be greater than 3.
To check if nodejs is installed on your system, type node –v in the terminal.... | [
{
"code": null,
"e": 2120,
"s": 1992,
"text": "In this chapter, we will discuss the Environment Setup required for Angular 4. To install Angular 4, we require the following −"
},
{
"code": null,
"e": 2127,
"s": 2120,
"text": "Nodejs"
},
{
"code": null,
"e": 2131,
... |
Find sum of elements in list in Python program | In this article, we will learn about the solution to the problem statement given below.
Problem statement − We are given a list iterable, we need to compute the sum of the list
Here we will be discussing 3 approaches as discussed below
Live Demo
# sum
total = 0
# creating a list
list1 = [11, 22,33,44,55,66]
# iteratin... | [
{
"code": null,
"e": 1150,
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"text": "In this article, we will learn about the solution to the problem statement given below."
},
{
"code": null,
"e": 1239,
"s": 1150,
"text": "Problem statement − We are given a list iterable, we need to compute the sum of the list"
},... |
Spell Checker using Trie - GeeksforGeeks | 31 Mar, 2021
Given an array of strings str[] and a string key, the task is to check if the spelling of the key is correct or not. If found to be true, then print “YES”. Otherwise, print the suggested correct spellings.
Examples:
Input:str[] = { “gee”, “geeks”, “ape”, “apple”, “geeksforgeeks” }, key = “geek” Output: gee... | [
{
"code": null,
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"text": "\n31 Mar, 2021"
},
{
"code": null,
"e": 24301,
"s": 24095,
"text": "Given an array of strings str[] and a string key, the task is to check if the spelling of the key is correct or not. If found to be true, then print “YES”. Otherwi... |
How to make a unique field in MongoDB? | To make a unique field in MongoDB, use unique − true. Let us create a collection with documents −
> db.demo82.createIndex({"EmployeeName":1},{unique:true});
{
"createdCollectionAutomatically" : true,
"numIndexesBefore" : 1,
"numIndexesAfter" : 2,
"ok" : 1
}
> db.demo82.insertOne({"EmployeeName":"Chris"});
{... | [
{
"code": null,
"e": 1160,
"s": 1062,
"text": "To make a unique field in MongoDB, use unique − true. Let us create a collection with documents −"
},
{
"code": null,
"e": 2358,
"s": 1160,
"text": "> db.demo82.createIndex({\"EmployeeName\":1},{unique:true});\n{\n \"createdCollect... |
Kafka No Longer Requires ZooKeeper | by Giorgos Myrianthous | Towards Data Science | Apache Kafka 2.8.0 is finally out and you can now have early-access to KIP-500 that removes the Apache Zookeeper dependency. Instead, Kafka now relies on an internal Raft quorum that can be activated through Kafka Raft metadata mode. The new feature simplifies cluster administration and infrastructure management and ma... | [
{
"code": null,
"e": 524,
"s": 172,
"text": "Apache Kafka 2.8.0 is finally out and you can now have early-access to KIP-500 that removes the Apache Zookeeper dependency. Instead, Kafka now relies on an internal Raft quorum that can be activated through Kafka Raft metadata mode. The new feature simpl... |
Bootstrap 4 - Images | Bootstrap 4 provides support for images by using <img> tag. It provides three classes that can be used to apply some simple styles to images −
.img-rounded − You can make rounded corners to an image by using .rounded class.
.img-rounded − You can make rounded corners to an image by using .rounded class.
.img-circle − Y... | [
{
"code": null,
"e": 1959,
"s": 1816,
"text": "Bootstrap 4 provides support for images by using <img> tag. It provides three classes that can be used to apply some simple styles to images −"
},
{
"code": null,
"e": 2040,
"s": 1959,
"text": ".img-rounded − You can make rounded cor... |
Multiples of 3 or 7 - GeeksforGeeks | 16 Aug, 2021
Given a positive integer n, find count of all multiples of 3 or 7 less than or equal to n.Examples :
Input : n = 10
Output : Count = 4
The multiples are 3, 6, 7 and 9
Input : n = 25
Output : Count = 10
The multiples are 3, 6, 7, 9, 12, 14, 15, 18, 21 and 24
A Simple Solution is to iterate over all number... | [
{
"code": null,
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"text": "\n16 Aug, 2021"
},
{
"code": null,
"e": 24724,
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"text": "Given a positive integer n, find count of all multiples of 3 or 7 less than or equal to n.Examples : "
},
{
"code": null,
"e": 24882,
"s": 24724,
... |
HTML - <p> Tag | The HTML <p> tag defines a paragraph of text.
<!DOCTYPE html>
<html>
<head>
<title>HTML p Tag</title>
</head>
<body>
<p>This paragraph is defined using the HTML p tag</p>
</body>
</html>
This will produce the following result −
This paragraph is defined using the HTML p tag
This tag supports ... | [
{
"code": null,
"e": 2420,
"s": 2374,
"text": "The HTML <p> tag defines a paragraph of text."
},
{
"code": null,
"e": 2588,
"s": 2420,
"text": "<!DOCTYPE html>\n<html>\n\n <head>\n <title>HTML p Tag</title>\n </head>\n\n <body>\n <p>This paragraph is defined using... |
Different Ways to Create the Instances of Wrapper Classes in Java - GeeksforGeeks | 17 Mar, 2021
Wrapper Class a class whose object wraps or contains primitive data types. When we create an object to a wrapper class, it contains a field and in this field, we can store primitive data types. In other words, we can wrap a primitive value into a wrapper class object.
Methods:
We can use two ways to constr... | [
{
"code": null,
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"s": 23866,
"text": "\n17 Mar, 2021"
},
{
"code": null,
"e": 24163,
"s": 23894,
"text": "Wrapper Class a class whose object wraps or contains primitive data types. When we create an object to a wrapper class, it contains a field and in this field, we c... |
C library function - strerror() | The C library function char *strerror(int errnum) searches an internal array for the error number errnum and returns a pointer to an error message string. The error strings produced by strerror depend on the developing platform and compiler.
Following is the declaration for strerror() function.
char *strerror(int errnu... | [
{
"code": null,
"e": 2249,
"s": 2007,
"text": "The C library function char *strerror(int errnum) searches an internal array for the error number errnum and returns a pointer to an error message string. The error strings produced by strerror depend on the developing platform and compiler."
},
{
... |
8085 program to convert a BCD number to binary - GeeksforGeeks | 20 Nov, 2019
Problem – Write an assembly language program for converting a 2 digit BCD number to its binary equivalent using 8085 microprocessor.
Examples:
Input : 72H (0111 0010)2
Output : 48H (in hexadecimal) (0011 0000)2
((4x16)+(8x1))=72
Algorithm:
Load the BCD number in the accumulatorUnpack the 2 digit BCD numbe... | [
{
"code": null,
"e": 24784,
"s": 24756,
"text": "\n20 Nov, 2019"
},
{
"code": null,
"e": 24917,
"s": 24784,
"text": "Problem – Write an assembly language program for converting a 2 digit BCD number to its binary equivalent using 8085 microprocessor."
},
{
"code": null,
... |
HTML | DOM Input Checkbox checked Property - GeeksforGeeks | 08 Mar, 2019
The DOM Input Checkbox Property is used to set or return the checked status of a checkbox field. This property is used to reflect the HTML Checked attribute.
Syntax:
It is used to return the checked property.checkboxObject.checked
checkboxObject.checked
It is used to set the checked property.checkboxObject... | [
{
"code": null,
"e": 24748,
"s": 24720,
"text": "\n08 Mar, 2019"
},
{
"code": null,
"e": 24906,
"s": 24748,
"text": "The DOM Input Checkbox Property is used to set or return the checked status of a checkbox field. This property is used to reflect the HTML Checked attribute."
},... |
Laravel - Sending Email | Laravel uses free feature-rich library SwiftMailer to send emails. Using the library function, we can easily send emails without too many hassles. The e-mail templates are loaded in the same way as views, which means you can use the Blade syntax and inject data into your templates.
The following table shows the syntax ... | [
{
"code": null,
"e": 2755,
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"text": "Laravel uses free feature-rich library SwiftMailer to send emails. Using the library function, we can easily send emails without too many hassles. The e-mail templates are loaded in the same way as views, which means you can use the Blade syntax and inj... |
Auto-deploy FastAPI App to Heroku via Git in these 5 Easy Steps | by Mandy Gu | Towards Data Science | If you are not working with an existing app, you can refer to my Iris Classifier FastAPI App for reference. I wrote an article about how to set that up (the Docker component is optional).
Note: I put the Iris app together really quickly to demonstrate how to set up FastAPI — it certainly does not adhere to best practic... | [
{
"code": null,
"e": 360,
"s": 172,
"text": "If you are not working with an existing app, you can refer to my Iris Classifier FastAPI App for reference. I wrote an article about how to set that up (the Docker component is optional)."
},
{
"code": null,
"e": 538,
"s": 360,
"text":... |
JavaScript - Quick Guide | JavaScript is a dynamic computer programming language. It is lightweight and most commonly used as a part of web pages, whose implementations allow client-side script to interact with the user and make dynamic pages. It is an interpreted programming language with object-oriented capabilities.
JavaScript was first known... | [
{
"code": null,
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"text": "JavaScript is a dynamic computer programming language. It is lightweight and most commonly used as a part of web pages, whose implementations allow client-side script to interact with the user and make dynamic pages. It is an interpreted programming lan... |
Five Regression Python Modules That Every Data Scientist Must Know | by Damian Ejlli | Towards Data Science | Regression is a very important concept in statistical modelling, data science, and machine learning that helps establish a possible relationship between an independent variable (or predictor), x, with a dependent variable (or simply output) y(x) by using specific mathematical minimisation criteria. There are several ty... | [
{
"code": null,
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"s": 172,
"text": "Regression is a very important concept in statistical modelling, data science, and machine learning that helps establish a possible relationship between an independent variable (or predictor), x, with a dependent variable (or simply output) y(x) by using ... |
Find all Ramanujan Numbers that can be formed by numbers upto L - GeeksforGeeks | 11 Jun, 2021
Given a positive integer L, the task is to find all the Ramanujan Numbers that can be generated by any set of quadruples (a, b, c, d), where 0 < a, b, c, d ≤ L.
Ramanujan Numbers are the numbers that can be expressed as sum of two cubes in two different ways. Therefore, Ramanujan Number (N) = a3 + b3 = c3 ... | [
{
"code": null,
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"text": "\n11 Jun, 2021"
},
{
"code": null,
"e": 24879,
"s": 24718,
"text": "Given a positive integer L, the task is to find all the Ramanujan Numbers that can be generated by any set of quadruples (a, b, c, d), where 0 < a, b, c, d ≤ L."
... |
Matplotlib – Plot over an image background in Python | To plot over an image background, we can take the following steps−
Read an image from a file into an array.
Create a figure (fig) and add a set of subplots (ax) with extent [0, 300, 0, 300].
Create an array x of range (300).
Plot x using plot() method with linestyle=dotted, linewidth=2, and color=red.
To display the fi... | [
{
"code": null,
"e": 1129,
"s": 1062,
"text": "To plot over an image background, we can take the following steps−"
},
{
"code": null,
"e": 1170,
"s": 1129,
"text": "Read an image from a file into an array."
},
{
"code": null,
"e": 1253,
"s": 1170,
"text": "Cre... |
stack top() in C++ STL | In this article, we will be discussing the working, syntax, and examples of
stack::top() function in C++ STL.
Stacks are the data structure that stores the data in LIFO (Last In First Out) where we do insertion and deletion from the top of the last element inserted. Like a stack of plates, if we want to push a new plat... | [
{
"code": null,
"e": 1172,
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"text": "In this article, we will be discussing the working, syntax, and examples of\nstack::top() function in C++ STL."
},
{
"code": null,
"e": 1508,
"s": 1172,
"text": "Stacks are the data structure that stores the data in LIFO (Last In Fir... |
Decision Statements | Decision making is critical to computer programming. There will be many situations when you will be given two or more options and you will have to select an option based on the given conditions. For example, we want to print a remark about a student based on his secured marks. Following is the situation −
Assume given ... | [
{
"code": null,
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"text": "Decision making is critical to computer programming. There will be many situations when you will be given two or more options and you will have to select an option based on the given conditions. For example, we want to print a remark about a student bas... |
override Keyword in C++ | The function overriding is the most common feature of C++. Basically function overriding means redefine a function which is present in the base class, also be defined in the derived class. So the function signatures are the same but the behavior will be different.
But there may be a situation when a programmer makes a ... | [
{
"code": null,
"e": 1327,
"s": 1062,
"text": "The function overriding is the most common feature of C++. Basically function overriding means redefine a function which is present in the base class, also be defined in the derived class. So the function signatures are the same but the behavior will be... |
Collision Detection in CSMA/CD - GeeksforGeeks | 31 Aug, 2021
CSMA/CD (Carrier Sense Multiple Access/ Collision Detection) is a media access control method that was widely used in Early Ethernet technology/LANs When there used to be shared Bus Topology and each node ( Computers) were connected By Coaxial Cables. Now a Days Ethernet is Full Duplex and CSMA/CD is not u... | [
{
"code": null,
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"text": "\n31 Aug, 2021"
},
{
"code": null,
"e": 37042,
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"text": "CSMA/CD (Carrier Sense Multiple Access/ Collision Detection) is a media access control method that was widely used in Early Ethernet technology/LANs When there use... |
Exploratory Data Analysis of the FIFA 19 Dataset in Python | by Sadrach Pierre, Ph.D. | Towards Data Science | In this post we will perform simple exploratory data analysis of the FIFA 19 data set. The data set can be found on Kaggle. FIFA is the Fédération Internationale de Football Association and FIFA 19 is part of the FIFA series of association football video games. It is one of the best selling video games of all time se... | [
{
"code": null,
"e": 531,
"s": 172,
"text": "In this post we will perform simple exploratory data analysis of the FIFA 19 data set. The data set can be found on Kaggle. FIFA is the Fédération Internationale de Football Association and FIFA 19 is part of the FIFA series of association football vide... |
Program to count number of elements in a list that contains odd number of digits in Python | Suppose we have a list of positive numbers called nums, we have to find the number of
elements that have odd number of digits.
So, if the input is like [1, 300, 12, 10, 3, 51236, 1245], then the output will be 4
To solve this, we will follow these steps −
c:= 0
for i in range 0 to size of nums, dos:= digit count of num... | [
{
"code": null,
"e": 1189,
"s": 1062,
"text": "Suppose we have a list of positive numbers called nums, we have to find the number of\nelements that have odd number of digits."
},
{
"code": null,
"e": 1274,
"s": 1189,
"text": "So, if the input is like [1, 300, 12, 10, 3, 51236, 12... |
C++ STL Tutorial | Hope you have already understood the concept of C++ Template which we have discussed earlier. The C++ STL (Standard Template Library) is a powerful set of C++ template classes to provide general-purpose classes and functions with templates that implement many popular and commonly used algorithms and data structures lik... | [
{
"code": null,
"e": 2676,
"s": 2318,
"text": "Hope you have already understood the concept of C++ Template which we have discussed earlier. The C++ STL (Standard Template Library) is a powerful set of C++ template classes to provide general-purpose classes and functions with templates that implemen... |
Predicting IMDb Movie Ratings using Supervised Machine Learning | by Joe Cowell | Towards Data Science | My name is Joe Cowell and I recently enrolled in the Metis Data Science Bootcamp. The 12-week immersive program will turn me from ‘data novice’ into a full-fledged data scientist. I mean, the title of this post includes ‘Supervised Machine Learning’ and I’ve only been in the program for three weeks, so it seems like Me... | [
{
"code": null,
"e": 709,
"s": 172,
"text": "My name is Joe Cowell and I recently enrolled in the Metis Data Science Bootcamp. The 12-week immersive program will turn me from ‘data novice’ into a full-fledged data scientist. I mean, the title of this post includes ‘Supervised Machine Learning’ and I... |
JavaScript - Array unshift() Method | Javascript array unshift() method adds one or more elements to the beginning of an array and returns the new length of the array.
Its syntax is as follows −
array.unshift( element1, ..., elementN );
element1, ..., elementN − The elements to add to the front of the array.
Returns the length of the new array. It returns... | [
{
"code": null,
"e": 2596,
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"text": "Javascript array unshift() method adds one or more elements to the beginning of an array and returns the new length of the array."
},
{
"code": null,
"e": 2623,
"s": 2596,
"text": "Its syntax is as follows −"
},
{
"code": nul... |
Explore your activity on Google with R: How to Analyze and Visualize Your Search History | by Saúl Buentello | Towards Data Science | Can you imagine a world without the most popular search engine in the world? I bet, dear reader, that if you are between the ages of 18 and 25, touching a dictionary or encyclopedia is not a part of everyday life for you, as it was for many of us in our youth.
Finding answers, knowledge, information (and misinformation... | [
{
"code": null,
"e": 432,
"s": 171,
"text": "Can you imagine a world without the most popular search engine in the world? I bet, dear reader, that if you are between the ages of 18 and 25, touching a dictionary or encyclopedia is not a part of everyday life for you, as it was for many of us in our y... |
How to Fix java.lang.UnsupportedClassVersionError in Java? - GeeksforGeeks | 28 Jan, 2021
The UnsupportedClassVersionError is a sub-class of the LinkageError and thrown by the Java Virtual Machine (JVM). When a class file is read and when major and minor version numbers are not supported, this error is thrown, and especially during the linking phase, this error is thrown
A sample snapshot of Un... | [
{
"code": null,
"e": 23557,
"s": 23529,
"text": "\n28 Jan, 2021"
},
{
"code": null,
"e": 23841,
"s": 23557,
"text": "The UnsupportedClassVersionError is a sub-class of the LinkageError and thrown by the Java Virtual Machine (JVM). When a class file is read and when major and mino... |
How to Find the Power of a Number Using Recursion in Python? | Following program accepts a number and index from user. The recursive funcion rpower() uses these two as arguments. The function multiplies the number repeatedly and recursively to return power.
def rpower(num,idx):
if(idx==1):
return(num)
else:
return(num*rpower(num,idx-1))
base=int(input("Enter ... | [
{
"code": null,
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"text": "Following program accepts a number and index from user. The recursive funcion rpower() uses these two as arguments. The function multiplies the number repeatedly and recursively to return power."
},
{
"code": null,
"e": 1499,
"s": 1257,
... |
Aptitude - Time & Work Online Quiz | Following quiz provides Multiple Choice Questions (MCQs) related to Simple Interest. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in t... | [
{
"code": null,
"e": 4221,
"s": 3892,
"text": "Following quiz provides Multiple Choice Questions (MCQs) related to Simple Interest. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer butt... |
Understanding RSA Algorithm | RSA algorithm is a public key encryption technique and is considered as the most secure way of encryption. It was invented by Rivest, Shamir and Adleman in year 1978 and hence name RSA algorithm.
The RSA algorithm holds the following features −
RSA algorithm is a popular exponentiation in a finite field over integers i... | [
{
"code": null,
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"text": "RSA algorithm is a public key encryption technique and is considered as the most secure way of encryption. It was invented by Rivest, Shamir and Adleman in year 1978 and hence name RSA algorithm."
},
{
"code": null,
"e": 2537,
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Using CountVectorizer to Extracting Features from Text | 07 Jul, 2022
CountVectorizer is a great tool provided by the scikit-learn library in Python. It is used to transform a given text into a vector on the basis of the frequency (count) of each word that occurs in the entire text. This is helpful when we have multiple such texts, and we wish to convert each word in each te... | [
{
"code": null,
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"text": "\n07 Jul, 2022"
},
{
"code": null,
"e": 491,
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"text": "CountVectorizer is a great tool provided by the scikit-learn library in Python. It is used to transform a given text into a vector on the basis of the frequency (count) of ea... |
Python Tweepy – Getting the ID of a status | 18 Jun, 2020
In this article we will see how we can get the ID of a status. Each status or tweet has a unique ID. The id attribute of the Status object provides us with the ID of the status/tweet.
Identifying the ID in the GUI :
In the above mentioned status, the ID can be found in the URL, the ID here is : 12710319821... | [
{
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{
"code": null,
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"text": "In this article we will see how we can get the ID of a status. Each status or tweet has a unique ID. The id attribute of the Status object provides us with the ID of the statu... |
How to Change the Screen Orientation Programmatically using a Button in Android? | 14 Oct, 2020
Generally, the screen orientation of any application is Portrait styled. But when it comes to gaming or any other multimedia service such as watching a video, the screen orientation must change functionally from Portrait to landscape or vice-versa when the functionality is not required. So a developer has ... | [
{
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"text": "\n14 Oct, 2020"
},
{
"code": null,
"e": 520,
"s": 28,
"text": "Generally, the screen orientation of any application is Portrait styled. But when it comes to gaming or any other multimedia service such as watching a video, the screen orien... |
Python PIL | Image.split() method | 21 Jun, 2019
PIL is the Python Imaging Library which provides the python interpreter with image editing capabilities.
Image.split() method is used to split the image into individual bands. This method returns a tuple of individual image bands from an image.Splitting an “RGB” image creates three new images each containi... | [
{
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"text": "PIL is the Python Imaging Library which provides the python interpreter with image editing capabilities."
},
{
"code": null,
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"text": "I... |
Interval Tree | 19 Mar, 2022
Consider a situation where we have a set of intervals and we need following operations to be implemented efficiently. 1) Add an interval 2) Remove an interval 3) Given an interval x, find if x overlaps with any of the existing intervals.Interval Tree: The idea is to augment a self-balancing Binary Search T... | [
{
"code": null,
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"s": 24,
"text": "\n19 Mar, 2022"
},
{
"code": null,
"e": 827,
"s": 52,
"text": "Consider a situation where we have a set of intervals and we need following operations to be implemented efficiently. 1) Add an interval 2) Remove an interval 3) Given an int... |
E-Governance | 12 Jul, 2022
Electronic Governance or E-Governance is the application of Information and Communication Technology (ICT) for providing government services, interchange of statics, communication proceedings, and integration of various independent systems and services. Through the means of e-governance, government service... | [
{
"code": null,
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"text": "\n12 Jul, 2022"
},
{
"code": null,
"e": 558,
"s": 28,
"text": "Electronic Governance or E-Governance is the application of Information and Communication Technology (ICT) for providing government services, interchange of statics, communica... |
Rat Maze With Multiple Jumps | Practice | GeeksforGeeks | A Maze is given as n*n matrix of blocks where source block is the upper left most block i.e., matrix[0][0] and destination block is lower rightmost block i.e., matrix[n-1][n-1]. A rat starts from source and has to reach the destination. The rat can move in only two directions: first forward if possible or down. If mult... | [
{
"code": null,
"e": 1110,
"s": 238,
"text": "A Maze is given as n*n matrix of blocks where source block is the upper left most block i.e., matrix[0][0] and destination block is lower rightmost block i.e., matrix[n-1][n-1]. A rat starts from source and has to reach the destination. The rat can move ... |
Finding the outlier points from Matplotlib | 28 Jan, 2021
Outliers are the data points that differ from other observations or those which lie at a distance from the other data. They are mainly generated due to some experimental error which may cause several problems in statistical analysis. While in a big dataset it is quite obvious that some data will be further... | [
{
"code": null,
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"text": "\n28 Jan, 2021"
},
{
"code": null,
"e": 434,
"s": 53,
"text": "Outliers are the data points that differ from other observations or those which lie at a distance from the other data. They are mainly generated due to some experimental erro... |
Order DataFrame rows according to vector with specific order in R | 26 Mar, 2021
In this article, we will see how to sort data frame rows based on the values of a vector with a specific order. There are two functions by which we can sort data frame rows based on the values of a vector.
match() function
left_join() function
Example dataset:
data <- data.frame(x1 = 1:5,
... | [
{
"code": null,
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"text": "\n26 Mar, 2021"
},
{
"code": null,
"e": 235,
"s": 28,
"text": "In this article, we will see how to sort data frame rows based on the values of a vector with a specific order. There are two functions by which we can sort data frame rows ba... |
Character Classification in C++ : cctype - GeeksforGeeks | 08 Mar, 2022
Character classification in C++ is possible using functions specified in function library. These functions are included in the <cctype> header file.
Numerous functions to classify characters are discussed below:1. isalpha(): This function returns true if the character is an alphabet else returns false. All... | [
{
"code": null,
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"text": "\n08 Mar, 2022"
},
{
"code": null,
"e": 25670,
"s": 25521,
"text": "Character classification in C++ is possible using functions specified in function library. These functions are included in the <cctype> header file."
},
{
... |
CPU control design and Interfaces - GeeksforGeeks | 19 Nov, 2018
MBR ← PC
MAR ← X
PC ← Y
Memory ← MBR
I. Function locals and parameters
II. Register saves and restores
III. Instruction fetches
M [SP]
Writing code in comment? Please use ide.geeksforgeeks.org, generate link and share the link here.
Must Do Coding Questions for Product Based C... | [
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},
{
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"text": " MBR ← PC \n MAR ← X \n PC ← Y \n Memory ← MBR"
},
{
"code": null,
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"text": "I. Function locals and pa... |
Bootstrap .btn-link class | Deemphasize a button by making it look like a link while maintaining button behavior using the btn-link class in Bootstrap −
Live Demo
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Example</title>
<meta name = "viewport" content = "width = device-width, initial-scale = 1">
<link rel = "stylesheet"... | [
{
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"text": "Deemphasize a button by making it look like a link while maintaining button behavior using the btn-link class in Bootstrap −"
},
{
"code": null,
"e": 1197,
"s": 1187,
"text": "Live Demo"
},
{
"code": null,
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... |
Make an element invisible with Bootstrap | To make an element invisible with Bootstrap, use the invisible class.
You can try to run the following code to hide an element −
Live Demo
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Example</title>
<link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet">
<script src = "/scripts/jquer... | [
{
"code": null,
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"text": "To make an element invisible with Bootstrap, use the invisible class."
},
{
"code": null,
"e": 1191,
"s": 1132,
"text": "You can try to run the following code to hide an element −"
},
{
"code": null,
"e": 1201,
"s": 1... |
Reverse Vowels of a string in C++ | Given a string, the task is to reverse all the vowels present in the given string. For example,
Input-1 −
a = “tutor”
Output −
totur
Explanation − Reversing the string “tutor” will generate the output as “totur.
Input-2 −
a = “mathematics”
Output −
mithametacs
Explanation − Reversing the string “mathematics” will gener... | [
{
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"text": "Given a string, the task is to reverse all the vowels present in the given string. For example,"
},
{
"code": null,
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"s": 1158,
"text": "Input-1 −"
},
{
"code": null,
"e": 1180,
"s": 1168,
"text": "a = “... |
What is Boosting in Machine Learning? | by z_ai | Towards Data Science | In this post, we will see a simple and intuitive explanation of Boosting algorithms: what they are, why they are so powerful, some of the different types, and how they are trained and used to make predictions.
We will avoid all the heavy maths and go for a clear, simple, but in depth explanation that can be easily unde... | [
{
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"text": "In this post, we will see a simple and intuitive explanation of Boosting algorithms: what they are, why they are so powerful, some of the different types, and how they are trained and used to make predictions."
},
{
"code": null,
"e": 628,
... |
Analytics on FIFA 2019 Players!. Football analytics and modelling of the... | by Dhanush | Towards Data Science | In this post we will perform simple data analysis and modelling of the FIFA 2019 complete player dataset following the CRISP-DM process . The dataset has been collected Kaggle. Dataset contains 1 CSV file.
FIFA 2019 is football simulation video game developed as a part of Electronic Arts’ FIFA series. It is the 26th in... | [
{
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"text": "In this post we will perform simple data analysis and modelling of the FIFA 2019 complete player dataset following the CRISP-DM process . The dataset has been collected Kaggle. Dataset contains 1 CSV file."
},
{
"code": null,
"e": 565,
"s"... |
Predict Customer Churn (the right way) using PyCaret | by Moez Ali | Towards Data Science | Customer retention is one of the primary KPI for companies with a subscription-based business model. Competition is tough particularly in the SaaS market where customers are free to choose from plenty of providers. One bad experience and customer may just move to the competitor resulting in customer churn.
Customer chu... | [
{
"code": null,
"e": 480,
"s": 172,
"text": "Customer retention is one of the primary KPI for companies with a subscription-based business model. Competition is tough particularly in the SaaS market where customers are free to choose from plenty of providers. One bad experience and customer may just... |
PHP ArgumentCountError | PHP parser throws ArgumentCountError when arguments passed to a user defined function or method are less than those in its definition. ArgumentCountError class is inherited from TypeError class
In Following example, a user defined function add() is defined to receive two arguments. However, if less than required number... | [
{
"code": null,
"e": 1256,
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"text": "PHP parser throws ArgumentCountError when arguments passed to a user defined function or method are less than those in its definition. ArgumentCountError class is inherited from TypeError class"
},
{
"code": null,
"e": 1496,
"s": 1256,
... |
Count ways to make sum of odd and even indexed elements equal by removing an array element - GeeksforGeeks | 27 Jun, 2021
Given an array, arr[] of size N, the task is to find the count of array indices such that removing an element from these indices makes the sum of even-indexed and odd-indexed array elements equal.
Examples:
Input: arr[] = { 2, 1, 6, 4 } Output: 1 Explanation: Removing arr[1] from the array modifies arr[] t... | [
{
"code": null,
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"s": 25388,
"text": "\n27 Jun, 2021"
},
{
"code": null,
"e": 25613,
"s": 25416,
"text": "Given an array, arr[] of size N, the task is to find the count of array indices such that removing an element from these indices makes the sum of even-indexed and ... |
How to get circular buttons in bootstrap 4 ? - GeeksforGeeks | 08 Jul, 2019
It is an open source toolkit for developing with the HTML, CSS, and JS. It includes several types of buttons, styles, fonts each of them serving its own semantic purpose which is predefined, with a few extras thrown for more control. You can use Bootstrap custom button styles to create your buttons and mor... | [
{
"code": null,
"e": 24419,
"s": 24391,
"text": "\n08 Jul, 2019"
},
{
"code": null,
"e": 25025,
"s": 24419,
"text": "It is an open source toolkit for developing with the HTML, CSS, and JS. It includes several types of buttons, styles, fonts each of them serving its own semantic p... |
How to redefine a color for a specific value in a Matplotlib colormap? | To redefine a color for a specific value in matplotlib colormap, we can take the following steps −
Get a colormap instance, defaulting to rc values if *name* is None using get_cmap() method, with gray colormap.
Get a colormap instance, defaulting to rc values if *name* is None using get_cmap() method, with gray colorma... | [
{
"code": null,
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"text": "To redefine a color for a specific value in matplotlib colormap, we can take the following steps −"
},
{
"code": null,
"e": 1273,
"s": 1161,
"text": "Get a colormap instance, defaulting to rc values if *name* is None using get_cmap()... |
Ruby | String Interpolation - GeeksforGeeks | 24 Sep, 2019
String Interpolation, it is all about combining strings together, but not by using the + operator. String Interpolation works only when we use double quotes (“”) for the string formation. String Interpolation provides an easy way to process String literals. String Interpolation refers to substitution of de... | [
{
"code": null,
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"s": 23958,
"text": "\n24 Sep, 2019"
},
{
"code": null,
"e": 24499,
"s": 23986,
"text": "String Interpolation, it is all about combining strings together, but not by using the + operator. String Interpolation works only when we use double quotes (“”) f... |
Using Logistic Regression to Create a Binary and Multiclass Classifier from Basics | by Naveen Venkatesan | Towards Data Science | As data science and machine learning have become an integral part of many fields in industry and academic research, basic literacy in these techniques can be very fruitful to identify trends in data, especially when the size of datasets rapidly increase. Having a background in experimental science, linear regression al... | [
{
"code": null,
"e": 1146,
"s": 171,
"text": "As data science and machine learning have become an integral part of many fields in industry and academic research, basic literacy in these techniques can be very fruitful to identify trends in data, especially when the size of datasets rapidly increase.... |
Mastering String Methods in Pandas | by Sadrach Pierre, Ph.D. | Towards Data Science | Pandas is a popular python library that enables easy to use data structures and data analysis tools. Pandas can be used for reading in data, generating statistics, aggregating, feature engineering for machine learning and much more. The Pandas library also provides a suite of tools for string/text manipulation.
In this... | [
{
"code": null,
"e": 485,
"s": 172,
"text": "Pandas is a popular python library that enables easy to use data structures and data analysis tools. Pandas can be used for reading in data, generating statistics, aggregating, feature engineering for machine learning and much more. The Pandas library als... |
How to Map a Function Over NumPy Array? - GeeksforGeeks | 28 Nov, 2021
In this article, we are going to see how to map a function over a NumPy array in Python.
The numpy.vectorize() function maps functions on data structures that contain a sequence of objects like NumPy arrays. The nested sequence of objects or NumPy arrays as inputs and returns a single NumPy array or a tupl... | [
{
"code": null,
"e": 23901,
"s": 23873,
"text": "\n28 Nov, 2021"
},
{
"code": null,
"e": 23990,
"s": 23901,
"text": "In this article, we are going to see how to map a function over a NumPy array in Python."
},
{
"code": null,
"e": 24227,
"s": 23990,
"text": "T... |
Construction of Combinational Circuits - GeeksforGeeks | 23 Jul, 2019
A Combinational Circuit consist of logic gates whose outputs at any instant of time are determined directly from the present combination of inputs without regard to previous input. Examples of combinational circuits: Adder, Subtractor, Converter, and Encoder/Decoder.
Here we are going to learn how to const... | [
{
"code": null,
"e": 24702,
"s": 24674,
"text": "\n23 Jul, 2019"
},
{
"code": null,
"e": 24970,
"s": 24702,
"text": "A Combinational Circuit consist of logic gates whose outputs at any instant of time are determined directly from the present combination of inputs without regard t... |
Return Pointer from Functions in C++ | As we have seen in last chapter how C++ allows to return an array from a function, similar way C++ allows you to return a pointer from a function. To do so, you would have to declare a function returning a pointer as in the following example −
int * myFunction() {
.
.
.
}
Second point to remember is that, it ... | [
{
"code": null,
"e": 2562,
"s": 2318,
"text": "As we have seen in last chapter how C++ allows to return an array from a function, similar way C++ allows you to return a pointer from a function. To do so, you would have to declare a function returning a pointer as in the following example −"
},
{... |
R - Array - GeeksforGeeks | 10 May, 2020
Arrays are essential data storage structures defined by a fixed number of dimensions. Arrays are used for the allocation of space at contiguous memory locations. Uni-dimensional arrays are called vectors with the length being their only dimension. Two-dimensional arrays are called matrices, consisting of f... | [
{
"code": null,
"e": 28964,
"s": 28936,
"text": "\n10 May, 2020"
},
{
"code": null,
"e": 29465,
"s": 28964,
"text": "Arrays are essential data storage structures defined by a fixed number of dimensions. Arrays are used for the allocation of space at contiguous memory locations. U... |
How to update data in a MySQL database with Java? | To update data into a MySQL database table, use UPDATE command. The syntax is as follows −
update yourTableName set yourColumnName1 = value1,....N where condition;
First, we need to create a table. The query is as follows −
mysql> create table UpdateDemo
-> (
-> id int,
-> Name varchar(200)
-> );
Query OK, ... | [
{
"code": null,
"e": 1153,
"s": 1062,
"text": "To update data into a MySQL database table, use UPDATE command. The syntax is as follows −"
},
{
"code": null,
"e": 1226,
"s": 1153,
"text": "update yourTableName set yourColumnName1 = value1,....N where condition;"
},
{
"cod... |
How to call a JavaScript function from an onsubmit event? | The onsubmit event occurs when you try to submit a form. You can put your form validation against this event type. The following example shows how to use onsubmit. Here, we are calling a validate() function before submitting a form data to the webserver. If validate() function returns true, the form will be submitted, ... | [
{
"code": null,
"e": 1421,
"s": 1062,
"text": "The onsubmit event occurs when you try to submit a form. You can put your form validation against this event type. The following example shows how to use onsubmit. Here, we are calling a validate() function before submitting a form data to the webserver... |
Gulp - Optimizing CSS and JavaScript | In this chapter, you will learn how to optimize CSS and JavaScript. Optimizing is required to remove unnecessary data (for e.g. spaces and unused characters) from the source files. It reduces the size of the files and allows them to load faster
Go to “work” directory from your command line and install “gulp-uglify”, “g... | [
{
"code": null,
"e": 2061,
"s": 1816,
"text": "In this chapter, you will learn how to optimize CSS and JavaScript. Optimizing is required to remove unnecessary data (for e.g. spaces and unused characters) from the source files. It reduces the size of the files and allows them to load faster"
},
... |
Count of distinct substrings | Practice | GeeksforGeeks | Given a string of length N of lowercase alphabet characters. The task is to complete the function countDistinctSubstring(), which returns the count of total number of distinct substrings of this string.
Input:
The first line of input contains an integer T, denoting the number of test cases. Then T test cases follow. Ea... | [
{
"code": null,
"e": 429,
"s": 226,
"text": "Given a string of length N of lowercase alphabet characters. The task is to complete the function countDistinctSubstring(), which returns the count of total number of distinct substrings of this string."
},
{
"code": null,
"e": 582,
"s": 4... |
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