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Transform data from a nested array to an object in JavaScript | Suppose, we have the following array of arrays −
const arr = [
[
['dog', 'Harry'], ['age', 2]
],
[
['dog', 'Roger'], ['age', 5]
]
];
We are required to write a JavaScript function that takes in one such nested array. The function should then prepare an object based on the array.
The object for t... | [
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"text": "Suppose, we have the following array of arrays −"
},
{
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"text": "const arr = [\n [\n ['dog', 'Harry'], ['age', 2]\n ],\n [\n ['dog', 'Roger'], ['age', 5]\n ]\n];"
},
{
"cod... |
Can we change return type of main() method in java? | The public static void main() method is the entry point of the Java program. Whenever you execute a program in Java, the JVM searches for the main method and starts executing from it.
You can write the main method in your program with return type other than void, the program gets compiled without compilation errors.
B... | [
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"text": "The public static void main() method is the entry point of the Java program. Whenever you execute a program in Java, the JVM searches for the main method and starts executing from it."
},
{
"code": null,
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"text":... |
Fractional Knapsack | Practice | GeeksforGeeks | Given weights and values of N items, we need to put these items in a knapsack of capacity W to get the maximum total value in the knapsack.
Note: Unlike 0/1 knapsack, you are allowed to break the item.
Example 1:
Input:
N = 3, W = 50
values[] = {60,100,120}
weight[] = {10,20,30}
Output:
220.00
Explanation:Total maxi... | [
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"text": "Given weights and values of N items, we need to put these items in a knapsack of capacity W to get the maximum total value in the knapsack.\nNote: Unlike 0/1 knapsack, you are allowed to break the item. "
},
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Check if a string consists only of special characters - GeeksforGeeks | 11 May, 2021
Given string str of length N, the task is to check if the given string contains only special characters or not. If the string contains only special characters, then print “Yes”. Otherwise, print “No”.
Examples:
Input: str = “@#$&%!~”Output: YesExplanation: Given string contains only special characters. The... | [
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"text": "Given string str of length N, the task is to check if the given string contains only special characters or not. If the string contains only special characters, the... |
Check input character is alphabet, digit or special character in C | In this section, we will see how to check whether a given character is number, or the alphabet or some special character in C.
The alphabets are from A – Z and a – z, Then the numbers are from 0 – 9. And all other characters are special characters. So If we check the conditions using these criteria, we can easily find ... | [
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"text": "In this section, we will see how to check whether a given character is number, or the alphabet or some special character in C."
},
{
"code": null,
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"text": "The alphabets are from A – Z and a – z, Then the number... |
Schedule Your Python Scripts On Windows Platform | by Ujjwal Dalmia | Towards Data Science | Let’s think of a scenario before we start with this tutorial:
Your manager calls you and instructs, “the client wants refreshed data every day by 6 AM IST. Please change your shift timings and ensure script execution post client’s batch completes”. What does this mean? This means, starting today, you will start losing ... | [
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"text": "Let’s think of a scenario before we start with this tutorial:"
},
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"text": "Your manager calls you and instructs, “the client wants refreshed data every day by 6 AM IST. Please change your shift timin... |
Sum of Query II | Practice | GeeksforGeeks | You are given an array arr[] of n integers and q queries in an array queries[] of length 2*q containing l, r pair for all q queries. You need to compute the following sum over q queries.
Array is 1-Indexed.
Example 1:
Input: n = 4
arr = {1, 2, 3, 4}
q = 2
queries = {1, 4, 2, 3}
Output: 10 5
Explaination: In the first... | [
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"text": "You are given an array arr[] of n integers and q queries in an array queries[] of length 2*q containing l, r pair for all q queries. You need to compute the following sum over q queries."
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What’s the best way to reload / refresh an iframe? - GeeksforGeeks | 17 Jun, 2019
Suppose that a user creates a webpage. Now he has a webpage, which contains an IFrame and a Button. Once the user presses the button, he/she needs the IFrame to be reloaded/refreshed. How are we going to make this possible? We are going to be finding it in the article.
The following syntax is work for both... | [
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"text": "Suppose that a user creates a webpage. Now he has a webpage, which contains an IFrame and a Button. Once the user presses the button, he/she needs the IFrame to be... |
What to Do When Your Data Is Too Big for Your Memory? | by Sara A. Metwalli | Towards Data Science | When we are working on any data science project, one of the essential steps to take is to download some data from an API to the memory so we can process it.
When doing that, there are some problems that we can face; one of these problems is having too much data to process. If the size of our data is larger than the siz... | [
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"text": "When we are working on any data science project, one of the essential steps to take is to download some data from an API to the memory so we can process it."
},
{
"code": null,
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"text": "When doing that, there are so... |
MySQL Cursor DECLARE Statement | A cursor in database is a construct which allows you to iterate/traversal the records of a table. In MySQL you can use cursors with in a stored program such as procedures, functions etc.
In other words, you can iterate though the records of a table from a MySQL stored program using the cursors. The cursors provided by ... | [
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Advanced Python List Methods and Techniques - GeeksforGeeks | 22 Sep, 2021
Lists are just like dynamically sized arrays, declared in other languages (vector in C++ and ArrayList in Java). Lists need not be homogeneous always which makes it a most powerful tool in Python. A single list may contain DataTypes like Integers, Strings, as well as Objects. Lists are mutable, and hence, ... | [
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"text": "Lists are just like dynamically sized arrays, declared in other languages (vector in C++ and ArrayList in Java). Lists need not be homogeneous always which makes i... |
PostgreSQL - JAVA Interface | Before we start using PostgreSQL in our Java programs, we need to make sure that we have PostgreSQL JDBC and Java set up on the machine. You can check Java tutorial for Java installation on your machine. Now let us check how to set up PostgreSQL JDBC driver.
Download the latest version of postgresql-(VERSION).jdbc.jar ... | [
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"text": "Before we start using PostgreSQL in our Java programs, we need to make sure that we have PostgreSQL JDBC and Java set up on the machine. You can check Java tutorial for Java installation on your machine. Now let us check how to set up PostgreSQL JDBC dr... |
PDFBox - Loading a Document | In the previous examples, you have seen how to create a new document and add pages to it. This chapter teaches you how to load a PDF document that already exists in your system, and perform some operations on it.
The load() method of the PDDocument class is used to load an existing PDF document. Follow the steps given ... | [
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"text": "In the previous examples, you have seen how to create a new document and add pages to it. This chapter teaches you how to load a PDF document that already exists in your system, and perform some operations on it."
},
{
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Expected Number of Trials until Success - GeeksforGeeks | 24 Oct, 2021
Consider the following famous puzzle.
In a country, all families want a boy. They keep having babies till a boy is born. What is the expected ratio of boys and girls in the country?
This puzzle can be easily solved if we know following interesting result in probability and expectation.
If probability of... | [
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"text": "Consider the following famous puzzle. "
},
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"code": null,
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Dual Boot Kali Linux with Windows - GeeksforGeeks | 14 Oct, 2020
Sometimes we came across situations like when we want to start learning Linux and command line stuff but using Linux as a main Operating System without having a basic idea of it is not a good option. So in order to do that we may install the same alongside windows. And choose which Operating System we want... | [
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"text": "Sometimes we came across situations like when we want to start learning Linux and command line stuff but using Linux as a main Operating System without having a ba... |
Print 1 To N Without Loop | Practice | GeeksforGeeks | Print numbers from 1 to N without the help of loops.
Example 1:
Input:
N = 10
Output: 1 2 3 4 5 6 7 8 9 10
Example 2:
Input:
N = 5
Output: 1 2 3 4 5
Your Task:
This is a function problem. You only need to complete the function printNos() that takes N as parameter and prints number from 1 to N recursively. Don't pri... | [
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"text": "Input:\nN = 10\nOutput: 1 2 3 4 5 6 7 8 9 10\n"
},
... |
Number of minimum picks to get 'k' pairs of socks from a drawer | Practice | GeeksforGeeks | A drawer contains socks of n different colours. The number of socks available of ith colour is given by a[i] where a is an array of n elements. Tony wants to take k pairs of socks out of the drawer. However, he cannot see the colour of the sock that he is picking. You have to tell what is the minimum number of socks To... | [
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"text": "A drawer contains socks of n different colours. The number of socks available of ith colour is given by a[i] where a is an array of n elements. Tony wants to take k pairs of socks out of the drawer. However, he cannot see the colour of the sock that he is... |
How do I put a jQuery code in an external .js file? | Create an external JavaScript file and add the jQuery code in it.
Let’s say the name of the external file is demo.js. To add it in the HTML page, include it like the following −
<html>
<head>
<script src = "https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="demo.js">... | [
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},
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"text": "Let’s say the name of the external file is demo.js. To add it in the HTML page, include it like the following −"
}... |
Excel Absolute References | Absolute reference is when a reference has the dollar sign ($).
It locks a reference in the formula.
Add $ to the formula to use absolute references.
The dollar sign has three different states:
Absolute for column and row. The reference is absolutely locked.
Example =$A$1
Absolute for the column. The reference is loc... | [
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Python range() built-in-function. Let us understand the basics of range()... | by Tanu N Prabhu | Towards Data Science | Let us understand the basics of range() function in python.
Now let us understand the concept of range function() in python, below shown are the concepts along with examples that will help you guys to understand the range() in a clear way. Also, visit my GitHub repository to find more details about the range function b... | [
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"text": "Now let us understand the concept of range function() in python, below shown are the concepts along with examples that will he... |
Calculate the cross-product of a Matrix in R Programming - crossprod() Function - GeeksforGeeks | 03 Jun, 2020
crossprod() function in R Language is used to return the cross-product of the specified matrix.
Syntax: crossprod(x)
Parameters:x: numeric matrix
Example 1:
# R program to illustrate# crossprod function # Initializing a matrix with# 2 rows and 2 columnsx <- matrix(1:4, 2, 2) # Getting the matrix represen... | [
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"text": "crossprod() function in R Language is used to return the cross-product of the specified matrix."
},
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DAX Information - ISTEXT function | Checks if a value is text, and returns TRUE or FALSE.
ISTEXT (<value>)
value
The value you want to check.
TRUE or FALSE.
Empty strings are considered as text.
Blank cells, BLANK () are considered as non-text.
= ISTEXT("") returns TRUE.
= ISTEXT("AB") returns TRUE.
= ISTEXT(4) returns FALSE.
= ISTEXT(TRUE()) return... | [
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"text": "Checks if a value is text, and returns TRUE or FALSE."
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"text": "ISTEXT (<value>) \n"
},
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"text": "value"
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ES6 - RegExp match() | This method retrieves the matches.
str.match(regexp)
Regexp − A regular expression object.
Regexp − A regular expression object.
Returns an array of matches and null if no matches are found.
var str = 'Welcome to ES6.We are learning ES6';
var re = new RegExp("We");
var found = str.match(re);
console.log(... | [
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"text": "str.match(regexp) \n"
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{
"code": null,
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"text": "Regexp − A regular expression object."
},
... |
Python MySQL - Update Table | UPDATE Operation on any database updates one or more records, which are already available in the database. You can update the values of existing records in MySQL using the UPDATE statement. To update specific rows, you need to use the WHERE clause along with it.
Following is the syntax of the UPDATE statement in MySQL ... | [
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"text": "UPDATE Operation on any database updates one or more records, which are already available in the database. You can update the values of existing records in MySQL using the UPDATE statement. To update specific rows, you need to use the WHERE clause along... |
Find array elements that are greater than average - GeeksforGeeks | 28 Apr, 2021
Given an array of numbers, print all those elements that are greater than average.
Examples:
Input : 5, 4, 6, 9, 10
Output : 9 10
Explanation:
avg = 5 + 4 + 6 + 9 + 10 / 5;
avg = 34 / 5
avg = 6.8
Elements greater than 6.8 are 9 and
10
Input : 1, 2, 4, 0, 5
Output : 4 5
1) Find average of elements. 2) Tra... | [
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"code": null,
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"text": "Given an array of numbers, print all those elements that are greater than average."
},
{
"code": null,
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"text": "Example... |
Geometry - Solved Examples | Q 1 - A line has
A - One end point
B - Two end points
C - Three end points
D - No end points
Answer - D
Explanation
A line has no points.
Q 2 - A line segment has
A - One end point
B - Two end points
C - Three end points
D - No end points
Answer - B
Explanation
A line segment has two end points.
Q 3 - A ray has
A - O... | [
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MySQL - Insert Query | To insert data into a MySQL table, you would need to use the SQL INSERT INTO command. You can insert data into the MySQL table by using the mysql> prompt or by using any script like PHP.
Here is a generic SQL syntax of INSERT INTO command to insert data into the MySQL table −
INSERT INTO table_name ( field1, field2,..... | [
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GATE | GATE-CS-2014-(Set-2) | Question 65 - GeeksforGeeks | 28 Jun, 2021
At what time between 6 a.m. and 7 a.m. will the minute hand and hour hand of a clock make an angle closest to 60o(A) 6:22 am(B) 6:27 am(C) 6:38 am(D) 6:45 amAnswer: (A)Explanation:
Speed of the Hour hand = ( 360 degree ) / ( 12 * 60 minutes )
= 0.5 degree / minute.
Speed of the minu... | [
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How to Perform a SUMIF Function in Pandas? - GeeksforGeeks | 22 Nov, 2021
sumif() function is used to perform sum operation by a group of items in the dataframe, It can be applied on single and multiple columns and we can also use this function with groupby function.
This function is used to display sum of all columns with respect to grouped column
Syntax: dataframe.groupby(‘gro... | [
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"text": "sumif() function is used to perform sum operation by a group of items in the dataframe, It can be applied on single and multiple columns and we can also use this f... |
Speed up your pytest GitHub Actions with Docker | by Emeline Floc'h | Towards Data Science | GitHub introduced Actions in 2018 as a fast and easy to set up CI/CD solution. Because of its recent release date, documentation on the topic is sometimes hard to find and I couldn’t put my hands on something that explained how to set up your Actions that run pytest in a pipenv environment into a Docker container. Here... | [
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"text": "GitHub introduced Actions in 2018 as a fast and easy to set up CI/CD solution. Because of its recent release date, documentation on the topic is sometimes hard to find and I couldn’t put my hands on something that explained how to set up your Actions that... |
Perl Assignment Operators Example | Assume variable $a holds 10 and variable $b holds 20, then below are the assignment operators available in Perl and their usage −
=
Simple assignment operator, Assigns values from right side operands to left side operand
Example − $c = $a + $b will assigned value of $a + $b into $c
+=
Add AND assignment operator, It ad... | [
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How to use shared preference in Android between activities? | This example demonstrate about How to use shared preference in Android between activities.
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" encoding = "u... | [
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sort() vs orderBy() in Spark | Towards Data Science | Sorting a Spark DataFrame is probably one of the most commonly used operations. You can use either sort() or orderBy() built-in functions to sort a particular DataFrame in ascending or descending order over at least one column. Even though both functions are supposed to order the data in a Spark DataFrame, they have on... | [
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How to convert an array into a matrix in R? | To convert an array into a matrix in R, we can use apply function. For example, if we have an array called ARRAY that contains 2 array elements then we can convert this array into a single matrix using the command apply(ARRAY,2,c). We need to understand the dimension of the array making the conversion otherwise the out... | [
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Statistical analysis of a stock price | by Gianluca Malato | Towards Data Science | The stock market is always considered a challenge for statistics. Somebody thinks that knowing the statistics of a market lets us beat it and earn money. The reality can be quite different.
In this article, I’m going to show you a statistical analysis of Google stock price.
In 2008, for my Bachelor’s Degree in Theoreti... | [
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Query MongoDB with “like” implementation on name and email field beginning with a specific letter? | For “like” implementation in MongoDB, use / / and set that specific letter in between. For example −
/J/
Let us create a collection with documents −
> db.demo554.insertOne({"UserName":"John","UserMailId":"John@gmail.com"});{
"acknowledged" : true, "insertedId" : ObjectId("5e8f1cfed1d72c4545cb8679")
}
> db.demo554.in... | [
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What are Ordered dictionaries in Python? | An OrderedDict is a dictionary subclass that remembers the order in which its contents are added, supporting the usual dict methods.If a new entry overwrites an existing entry, the original insertion position is left unchanged. Deleting an entry and reinserting it will move it to the end.
>>> from collections import Or... | [
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How to vectorize pairwise (dis)similarity metrics | by Ben Cook | Towards Data Science | You can vectorize a whole class of pairwise (dis)similarity metrics with the same pattern in NumPy, PyTorch and TensorFlow. This is important when a step inside your data science or machine learning algorithm requires you to compute these pairwise metrics because you probably don’t want to waste compute time with expen... | [
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"s": 172,
"text": "You can vectorize a whole class of pairwise (dis)similarity metrics with the same pattern in NumPy, PyTorch and TensorFlow. This is important when a step inside your data science or machine learning algorithm requires you to compute these pairwise metrics... |
Find the Number Occurring Odd Number of Times using Lambda expression and reduce function in Python | In this article we are required to find that number from the list which occurs odd number of times in the given list. We are also required to use the Lambda function and the reduce function.
We design a function where the reduce function is used by applying the Lambda function to check if the element is present odd num... | [
{
"code": null,
"e": 1253,
"s": 1062,
"text": "In this article we are required to find that number from the list which occurs odd number of times in the given list. We are also required to use the Lambda function and the reduce function."
},
{
"code": null,
"e": 1396,
"s": 1253,
... |
Bulma Text Color - GeeksforGeeks | 01 Dec, 2021
Bulma is a free and open-source CSS framework based on Flexbox. It is component-rich, compatible, and well documented. It is highly responsive in nature. It uses classes to implement its design. Text class accepts lots of value in Bulma which all the properties are covered in class form. By using this clas... | [
{
"code": null,
"e": 25376,
"s": 25348,
"text": "\n01 Dec, 2021"
},
{
"code": null,
"e": 25760,
"s": 25376,
"text": "Bulma is a free and open-source CSS framework based on Flexbox. It is component-rich, compatible, and well documented. It is highly responsive in nature. It uses c... |
PHP $_SERVER | $_SERVER is a superglobal that holds information regarding HTTP headers, path and script location etc. All the server and execution environment related information is available in this associative array. Most of the entries in this array are populated by web server.
PHP versions prior to 5.4.0 contained $HTTP_SERVER_VA... | [
{
"code": null,
"e": 1329,
"s": 1062,
"text": "$_SERVER is a superglobal that holds information regarding HTTP headers, path and script location etc. All the server and execution environment related information is available in this associative array. Most of the entries in this array are populated b... |
Python dictionary with keys having multiple inputs | When it is required to create a dictionary where keys have multiple inputs, an empty dictionary can be created, and the value for a specific key can be specified.
Below is the demonstration of the same −
Live Demo
my_dict = {}
a, b, c = 15, 26, 38
my_dict[a, b, c] = a + b - c
a, b, c = 5, 4, 11
my_dict[a, b, c] = a ... | [
{
"code": null,
"e": 1225,
"s": 1062,
"text": "When it is required to create a dictionary where keys have multiple inputs, an empty dictionary can be created, and the value for a specific key can be specified."
},
{
"code": null,
"e": 1266,
"s": 1225,
"text": "Below is the demons... |
What is the best way to compare two strings in JavaScript? | To compare two strings in JavaScript, use the localeCompare() method. The method returns 0 if both the strings are equal, -1 if string 1 is sorted before string 2 and 1 if string 2 is sorted before string 1.
You can try to run the following code to compare two strings
Live Demo
<!DOCTYPE html>
<html>
<body>
<b... | [
{
"code": null,
"e": 1270,
"s": 1062,
"text": "To compare two strings in JavaScript, use the localeCompare() method. The method returns 0 if both the strings are equal, -1 if string 1 is sorted before string 2 and 1 if string 2 is sorted before string 1."
},
{
"code": null,
"e": 1331,
... |
Getting a Matrix of number of rows in R Programming - row() Function - GeeksforGeeks | 04 Jun, 2020
row() function in R Language is used to get the row number of a matrix.
Syntax: row(x, as.factor=FALSE)
Parameters:x: matrixas.factor: a logical value indicating whether the value should be returned as a factor of column labels (created if necessary) rather than as numbers
Example 1:
# R program to illustr... | [
{
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"text": "\n04 Jun, 2020"
},
{
"code": null,
"e": 24539,
"s": 24467,
"text": "row() function in R Language is used to get the row number of a matrix."
},
{
"code": null,
"e": 24571,
"s": 24539,
"text": "Syntax: row(x, as.... |
How to use PyCaret - the library for easy ML | Towards Data Science | When we approach supervised machine learning problems, it can be tempting to just see how a random forest or gradient boosting model performs and stop experimenting if we are satisfied with the results. What if you could compare many different models with just one line of code? What if you could reduce each step of the... | [
{
"code": null,
"e": 588,
"s": 172,
"text": "When we approach supervised machine learning problems, it can be tempting to just see how a random forest or gradient boosting model performs and stop experimenting if we are satisfied with the results. What if you could compare many different models with... |
WPF - Listbox | ListBox is a control that provides a list of items to the user item selection. A user can select one or more items from the predefined list of items at a time. In a ListBox, multiple options are always visible to the user without any user interaction. The hierarchical inheritance of ListBox class is as follows −
Below ... | [
{
"code": null,
"e": 2334,
"s": 2020,
"text": "ListBox is a control that provides a list of items to the user item selection. A user can select one or more items from the predefined list of items at a time. In a ListBox, multiple options are always visible to the user without any user interaction. T... |
Bootstrap well class | A well is a container in <div> that causes the content to appear sunken or an inset effect on the page. To create a well, simply wrap the content that you would like to appear in the well with a <div> containing the class of .well.
You can try to run the following code to implement well class in Bootstrap −
Live Demo
<... | [
{
"code": null,
"e": 1294,
"s": 1062,
"text": "A well is a container in <div> that causes the content to appear sunken or an inset effect on the page. To create a well, simply wrap the content that you would like to appear in the well with a <div> containing the class of .well."
},
{
"code":... |
Plot a Vertical line in Matplotlib - GeeksforGeeks | 25 Aug, 2021
Matplotlib is a popular python library used for plotting, It provides an object-oriented API to render GUI plots. Plotting a horizontal line is fairly simple, The following code shows how it can be done.
Method #1: Using axvline()
This function adds the vertical lines across the axes of the plot
Syntax: ma... | [
{
"code": null,
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"s": 24564,
"text": "\n25 Aug, 2021"
},
{
"code": null,
"e": 24796,
"s": 24592,
"text": "Matplotlib is a popular python library used for plotting, It provides an object-oriented API to render GUI plots. Plotting a horizontal line is fairly simple, The ... |
Mahotas - Bernsen local thresholding - GeeksforGeeks | 08 Dec, 2021
In this article, we will see how we can implement bernsen local thresholding in mahotas. Bernsen’s method is one of locally adaptive binarization methods developed for image segmentation. In this study, Bernsen’s locally adaptive binarization method is implemented and then tested for different grayscale im... | [
{
"code": null,
"e": 24292,
"s": 24264,
"text": "\n08 Dec, 2021"
},
{
"code": null,
"e": 24605,
"s": 24292,
"text": "In this article, we will see how we can implement bernsen local thresholding in mahotas. Bernsen’s method is one of locally adaptive binarization methods developed... |
Security Testing - Quick Guide | Security testing is very important to keep the system protected from malicious activities on the web.
Security testing is a testing technique to determine if an information system protects data and maintains functionality as intended. Security testing does not guarantee complete security of the system, but it is import... | [
{
"code": null,
"e": 2542,
"s": 2440,
"text": "Security testing is very important to keep the system protected from malicious activities on the web."
},
{
"code": null,
"e": 2826,
"s": 2542,
"text": "Security testing is a testing technique to determine if an information system pr... |
Have you tried Pylance for VS Code? If not, here’s why you should. | by SJ Porter | Towards Data Science | If you work with Python and Visual Studio Code, go ahead and do yourself a favor: download the Pylance extension (preview) and try it out for yourself.
Pylance is an extension for Visual Studio Code. More specifically, Pylance is a Python language server — this means it offers enhancements to IntelliSense, syntax highl... | [
{
"code": null,
"e": 323,
"s": 171,
"text": "If you work with Python and Visual Studio Code, go ahead and do yourself a favor: download the Pylance extension (preview) and try it out for yourself."
},
{
"code": null,
"e": 621,
"s": 323,
"text": "Pylance is an extension for Visual... |
Calculate and Plot S&P 500 Daily Returns | by Jose Manu (CodingFun) | Towards Data Science | The majority of investors are always trying to find an answer to a simple question, how the financial market will perform in the future.
Obviously, no one knows the answer, and therefore, investors and financial analysts spend hours and hours trying to find out the best possible estimate of future stock prices. Python ... | [
{
"code": null,
"e": 308,
"s": 171,
"text": "The majority of investors are always trying to find an answer to a simple question, how the financial market will perform in the future."
},
{
"code": null,
"e": 665,
"s": 308,
"text": "Obviously, no one knows the answer, and therefore... |
Extract the Day / Month / Year from a Timestamp in PHP MySQL? | To extract the Day/Month/Year from a timestamp, you need to use the date_parse() function. The syntax as follows −
print_r(date_parse(“anyTimeStampValue”));
The PHP code is as follows −
$yourTimeStampValue="2019-02-04 12:56:50";
print_r(date_parse($yourTimeStampValue));
The snapshot of PHP code is as follows −
The foll... | [
{
"code": null,
"e": 1177,
"s": 1062,
"text": "To extract the Day/Month/Year from a timestamp, you need to use the date_parse() function. The syntax as follows −"
},
{
"code": null,
"e": 1219,
"s": 1177,
"text": "print_r(date_parse(“anyTimeStampValue”));"
},
{
"code": nul... |
Fortran - Reshape Functions | The following table describes the reshape function:
Example
The following example demonstrates the concept:
program arrayReshape
implicit none
interface
subroutine write_matrix(a)
real, dimension(:,:) :: a
end subroutine write_matrix
end interface
real, dimension (1:9) :: b = (/ 21, 22, 23, 24, 25, 26,... | [
{
"code": null,
"e": 2198,
"s": 2146,
"text": "The following table describes the reshape function:"
},
{
"code": null,
"e": 2206,
"s": 2198,
"text": "Example"
},
{
"code": null,
"e": 2254,
"s": 2206,
"text": "The following example demonstrates the concept:"
... |
Burning Tree | Practice | GeeksforGeeks | Given a binary tree and a node called target. Find the minimum time required to burn the complete binary tree if the target is set on fire. It is known that in 1 second all nodes connected to a given node get burned. That is its left child, right child, and parent.
Example 1:
Input:
1
/ \
... | [
{
"code": null,
"e": 556,
"s": 290,
"text": "Given a binary tree and a node called target. Find the minimum time required to burn the complete binary tree if the target is set on fire. It is known that in 1 second all nodes connected to a given node get burned. That is its left child, right child, a... |
D3.js image() Function - GeeksforGeeks | 17 Aug, 2020
The d3.image() function in D3.js is a part of the request API that is used to fetch the images from any given image URL. If init is also given in the function then it sets any additional properties on the image before loading the image.
Syntax:
d3.image(input[, init]);
Parameters: This function accepts ... | [
{
"code": null,
"e": 25220,
"s": 25192,
"text": "\n17 Aug, 2020"
},
{
"code": null,
"e": 25459,
"s": 25220,
"text": "The d3.image() function in D3.js is a part of the request API that is used to fetch the images from any given image URL. If init is also given in the function then... |
Python - Modules | A module allows you to logically organize your Python code. Grouping related code into a module makes the code easier to understand and use. A module is a Python object with arbitrarily named attributes that you can bind and reference.
Simply, a module is a file consisting of Python code. A module can define functions,... | [
{
"code": null,
"e": 2480,
"s": 2244,
"text": "A module allows you to logically organize your Python code. Grouping related code into a module makes the code easier to understand and use. A module is a Python object with arbitrarily named attributes that you can bind and reference."
},
{
"co... |
Data Manipulation Commands in DBMS | Data manipulation commands are used to manipulate data in the database.
Some of the Data Manipulation Commands are-
Select statement retrieves the data from database according to the constraints specifies alongside.
SELECT <COLUMN NAME>
FROM <TABLE NAME>
WHERE <CONDITION>
GROUP BY <COLUMN LIST>
HAVING <CRITERIA FOR FUN... | [
{
"code": null,
"e": 1134,
"s": 1062,
"text": "Data manipulation commands are used to manipulate data in the database."
},
{
"code": null,
"e": 1178,
"s": 1134,
"text": "Some of the Data Manipulation Commands are-"
},
{
"code": null,
"e": 1278,
"s": 1178,
"tex... |
Groovy - For Statement | The for statement is used to iterate through a set of values. The for statement is generally used in the following way.
for(variable declaration;expression;Increment) {
statement #1
statement #2
...
}
The classic for statement consists of the following parts −
Variable declaration − This step is executed ... | [
{
"code": null,
"e": 2358,
"s": 2238,
"text": "The for statement is used to iterate through a set of values. The for statement is generally used in the following way."
},
{
"code": null,
"e": 2453,
"s": 2358,
"text": "for(variable declaration;expression;Increment) { \n statemen... |
Procurement Process Optimization with Python | by Samir Saci | Towards Data Science | Procurement management is a strategic approach to acquiring goods or services from preferred vendors, within your determined budget, either on or before a specific deadline.
Your target is to balance supply and demand in a manner to ensure a minimum level of inventory to meet your store demand.
In this article, we will... | [
{
"code": null,
"e": 345,
"s": 171,
"text": "Procurement management is a strategic approach to acquiring goods or services from preferred vendors, within your determined budget, either on or before a specific deadline."
},
{
"code": null,
"e": 467,
"s": 345,
"text": "Your target ... |
Can I retrieve multiple documents from MongoDB by id? | Yes, to retrieve multiple docs from MongoDB by id, use the $in operator. The syntax is as follows
db.yourCollectionName.find({_id:{$in:[yourValue1,yourValue2,yourValue3,...N]}});
Let us first create a collection with documents:
> db.retrieveMultipleDocsByIdDemo.insertOne({"_id":10,"CustomerName":"John"});
{ "acknowledg... | [
{
"code": null,
"e": 1160,
"s": 1062,
"text": "Yes, to retrieve multiple docs from MongoDB by id, use the $in operator. The syntax is as follows"
},
{
"code": null,
"e": 1241,
"s": 1160,
"text": "db.yourCollectionName.find({_id:{$in:[yourValue1,yourValue2,yourValue3,...N]}});"
... |
Ruby Integer times function with example - GeeksforGeeks | 17 Mar, 2020
The times function in Ruby returns all the numbers from 0 to one less than the number itself. It iterates the given block, passing in increasing values from 0 up to the limit. If no block is given, an Enumerator is returned instead.
Syntax: (number).times
Parameter: The function takes the integer till whic... | [
{
"code": null,
"e": 23536,
"s": 23508,
"text": "\n17 Mar, 2020"
},
{
"code": null,
"e": 23769,
"s": 23536,
"text": "The times function in Ruby returns all the numbers from 0 to one less than the number itself. It iterates the given block, passing in increasing values from 0 up t... |
acos() function in C++ STL - GeeksforGeeks | 10 May, 2021
acos() is an inbuilt function in C++ STL and it’s the same as the inverse of cosine in maths. The acos() function returns the values in the range of [0, ?] that is an angle in radian.
Syntax :
acos(data_type x)
Parameters : This function accepts one mandatory parameter x which specifies the value whose inv... | [
{
"code": null,
"e": 24059,
"s": 24031,
"text": "\n10 May, 2021"
},
{
"code": null,
"e": 24243,
"s": 24059,
"text": "acos() is an inbuilt function in C++ STL and it’s the same as the inverse of cosine in maths. The acos() function returns the values in the range of [0, ?] that is... |
How to add text inside a Tkinter Canvas? | Canvas is undoubtedly one of the most versatile widgets in tkinter. With Canvas, we can create shapes, texts, animate stuff, modeling 3D shapes, modeling simulations, and many more.
In order to add text inside a tkinter frame, we can use the create_text() method. We can define create_text() by adding values of font, te... | [
{
"code": null,
"e": 1244,
"s": 1062,
"text": "Canvas is undoubtedly one of the most versatile widgets in tkinter. With Canvas, we can create shapes, texts, animate stuff, modeling 3D shapes, modeling simulations, and many more."
},
{
"code": null,
"e": 1454,
"s": 1244,
"text": "... |
Link Prediction with Neo4j Part 2: Predicting co-authors using scikit-learn | by Mark Needham | Towards Data Science | In the 1st post we learnt about link prediction measures, how to apply them in Neo4j, and how they can be used as features in a machine learning classifier. We also learnt about the challenge of splitting train and test data sets when working with graphs.
In this post we’ll apply the things we learned on a citation dat... | [
{
"code": null,
"e": 428,
"s": 172,
"text": "In the 1st post we learnt about link prediction measures, how to apply them in Neo4j, and how they can be used as features in a machine learning classifier. We also learnt about the challenge of splitting train and test data sets when working with graphs.... |
How to import Google Sheets data into a Pandas DataFrame using Google’s API v4 (2020) | by Erik Yan | Towards Data Science | Google Sheets is a useful way to share data and collaborate remotely. But transferring the data to environments such as Python on a regular basis can be burdensome. This post will cover how to set up the latest Google Sheets API, v4 as of June 2020, for Python. We’ll also cover how to extract data from a Google Sheet r... | [
{
"code": null,
"e": 549,
"s": 172,
"text": "Google Sheets is a useful way to share data and collaborate remotely. But transferring the data to environments such as Python on a regular basis can be burdensome. This post will cover how to set up the latest Google Sheets API, v4 as of June 2020, for P... |
5 Common SQL Interview Problems for Data Scientists | by Terence Shin | Towards Data Science | While it’s not the sexiest part of the job, having a strong understanding of SQL is essential to succeed in any data-focused job. The truth is that there’s way more to SQL than SELECT FROM WHERE GROUP BY ORDER BY. The more functions you know, the easier it’ll be for you to manipulate and query anything you want.
There ... | [
{
"code": null,
"e": 485,
"s": 171,
"text": "While it’s not the sexiest part of the job, having a strong understanding of SQL is essential to succeed in any data-focused job. The truth is that there’s way more to SQL than SELECT FROM WHERE GROUP BY ORDER BY. The more functions you know, the easier i... |
Java Examples - Set Background to a Table | How to set background to a table in a PDF using Java.
Following is the program to set background to a table in a PDF using Java.
import com.itextpdf.kernel.color.Color;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.layout.Document;
import com.itextpdf.lay... | [
{
"code": null,
"e": 2122,
"s": 2068,
"text": "How to set background to a table in a PDF using Java."
},
{
"code": null,
"e": 2197,
"s": 2122,
"text": "Following is the program to set background to a table in a PDF using Java."
},
{
"code": null,
"e": 4621,
"s": 2... |
Matplotlib.pyplot.hexbin() function in Python - GeeksforGeeks | 05 Jun, 2020
Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. Pyplot is a state-based interface to a Matplotlib module which provides a MATLAB-like interface. There are various plots which can be used in Pyplot are Line Plot, Contour, Histogram, Scatter, 3D Plot, etc.
T... | [
{
"code": null,
"e": 23901,
"s": 23873,
"text": "\n05 Jun, 2020"
},
{
"code": null,
"e": 24207,
"s": 23901,
"text": "Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. Pyplot is a state-based interface to a Matplotlib module which pr... |
Tryit Editor v3.7 | Tryit: Events sent form the server | [] |
C Program for Binary Search (Recursive and Iterative)? | The binary search algorithm is an algorithm that is based on compare and split mechanism. The binary Search algorithm is also known as half-interval search, logarithmic search, or binary chop. The binary search algorithm, search the position of the target value in a sorted array. It compares the target value with the m... | [
{
"code": null,
"e": 1836,
"s": 1062,
"text": "The binary search algorithm is an algorithm that is based on compare and split mechanism. The binary Search algorithm is also known as half-interval search, logarithmic search, or binary chop. The binary search algorithm, search the position of the targ... |
Update all the fields in a table with null or non-null values with MySQL | Let us first create a table −
mysql> create table DemoTable
-> (
-> Id int,
-> Name varchar(20)
-> );
Query OK, 0 rows affected (0.58 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values(10,NULL);
Query OK, 1 row affected (0.32 sec)
mysql> insert into DemoTable va... | [
{
"code": null,
"e": 1092,
"s": 1062,
"text": "Let us first create a table −"
},
{
"code": null,
"e": 1213,
"s": 1092,
"text": "mysql> create table DemoTable\n -> (\n -> Id int,\n -> Name varchar(20)\n -> );\nQuery OK, 0 rows affected (0.58 sec)"
},
{
"code": null... |
Node.js socket.bind() Method - GeeksforGeeks | 02 Jul, 2021
The socket.bind() method is an inbuilt application programming interface of class Socket within dgram module which is used to bind the particular data gram server to a particular port with some required information.
Syntax:
const socket.bind(options[, callback])
Parameters: This method takes the following ... | [
{
"code": null,
"e": 38611,
"s": 38583,
"text": "\n02 Jul, 2021"
},
{
"code": null,
"e": 38827,
"s": 38611,
"text": "The socket.bind() method is an inbuilt application programming interface of class Socket within dgram module which is used to bind the particular data gram server ... |
join Command in Linux - GeeksforGeeks | 22 May, 2019
The join command in UNIX is a command line utility for joining lines of two files on a common field.
Suppose you have two files and there is a need to combine these two files in a way that the output makes even more sense.For example, there could be a file containing names and the other containing ID’s and... | [
{
"code": null,
"e": 25787,
"s": 25759,
"text": "\n22 May, 2019"
},
{
"code": null,
"e": 25888,
"s": 25787,
"text": "The join command in UNIX is a command line utility for joining lines of two files on a common field."
},
{
"code": null,
"e": 26409,
"s": 25888,
... |
Count the number of currency notes needed - GeeksforGeeks | 04 May, 2021
You have an unlimited amount of banknotes worth A and B dollars (A not equals to B). You want to pay a total of S dollars using exactly N notes. The task is to find the number of notes worth A dollars you need. If there is no solution return -1.
Examples:
Input: A = 1, B = 2, S = 7, N = 5 Output: 3 3 * A ... | [
{
"code": null,
"e": 26537,
"s": 26509,
"text": "\n04 May, 2021"
},
{
"code": null,
"e": 26783,
"s": 26537,
"text": "You have an unlimited amount of banknotes worth A and B dollars (A not equals to B). You want to pay a total of S dollars using exactly N notes. The task is to fin... |
SAS - Date & Times | IN SAS dates are a special case of numeric values. Each day is assigned a specific numeric value starting from 1st January 1960. This date is assigned the date value 0 and the next date has a date value of 1 and so on. The previous days to this date are represented by -1 , -2 and so on. With this approach SAS can repre... | [
{
"code": null,
"e": 2949,
"s": 2583,
"text": "IN SAS dates are a special case of numeric values. Each day is assigned a specific numeric value starting from 1st January 1960. This date is assigned the date value 0 and the next date has a date value of 1 and so on. The previous days to this date are... |
What is arrow operator in C++? | The dot and arrow operator are both used in C++ to access the members of a class. They are just used in different scenarios. In C++, types declared as a class, struct, or union are considered "of class type". So the following refers to both of them.
a.b is only used if b is a member of the object (or reference[1] to an... | [
{
"code": null,
"e": 1312,
"s": 1062,
"text": "The dot and arrow operator are both used in C++ to access the members of a class. They are just used in different scenarios. In C++, types declared as a class, struct, or union are considered \"of class type\". So the following refers to both of them."
... |
How to Use Dagger Library in Android App? - GeeksforGeeks | 30 Aug, 2021
When we create a new Android Project, eventually we start accumulating different-different dependencies to get certain functionalities, but over time managing them becomes cumbersome, thus an injection framework like Dagger comes into play. However, setting up an injection service like Dagger requires much... | [
{
"code": null,
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"s": 24723,
"text": "\n30 Aug, 2021"
},
{
"code": null,
"e": 25214,
"s": 24751,
"text": "When we create a new Android Project, eventually we start accumulating different-different dependencies to get certain functionalities, but over time managing them... |
What is the difference between method overloading and method overriding in Java? | Following are the notable differences between overloading and overriding.
In method overloading a class have two or more methods in with the same name and different parameters.
In overloading return type could vary in both methods.
JVM calls the respective method based on the parameters passed to it, at the time of met... | [
{
"code": null,
"e": 1136,
"s": 1062,
"text": "Following are the notable differences between overloading and overriding."
},
{
"code": null,
"e": 1239,
"s": 1136,
"text": "In method overloading a class have two or more methods in with the same name and different parameters."
},... |
TF – IDF for Bigrams & Trigrams | 27 Sep, 2019
TF-IDF in NLP stands for Term Frequency – Inverse document frequency. It is a very popular topic in Natural Language Processing which generally deals with human languages. During any text processing, cleaning the text (preprocessing) is vital. Further, the cleaned data needs to be converted into a numerica... | [
{
"code": null,
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"s": 26,
"text": "\n27 Sep, 2019"
},
{
"code": null,
"e": 682,
"s": 54,
"text": "TF-IDF in NLP stands for Term Frequency – Inverse document frequency. It is a very popular topic in Natural Language Processing which generally deals with human languages. Du... |
Golang | Replacing all String which Matches with Regular Expression | 05 Sep, 2019
A regular expression is a sequence of characters which define a search pattern. Go language support regular expressions. A regular expression is used for parsing, filtering, validating, and extracting meaningful information from large text, like logs, the output generated from other programs, etc.In Go reg... | [
{
"code": null,
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"text": "\n05 Sep, 2019"
},
{
"code": null,
"e": 754,
"s": 28,
"text": "A regular expression is a sequence of characters which define a search pattern. Go language support regular expressions. A regular expression is used for parsing, filtering, v... |
Zoom into ggplot2 Plot without Removing Data in R | 24 Oct, 2021
In this article, we will discuss how to zoom into the ggplot2 plot without removing data using ggplot2 package in the R programming language. The approaches to the zoom into ggplot2 plot without removing data are as follows:
Zoom in to ggplot2 plot without Removing data using ylim()/xlim() function
Zoom in... | [
{
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},
{
"code": null,
"e": 253,
"s": 28,
"text": "In this article, we will discuss how to zoom into the ggplot2 plot without removing data using ggplot2 package in the R programming language. The approaches to the zoom into g... |
Design a close button using Pure CSS | 19 Jan, 2022
The task is to make the close button using Pure CSS. There are two approaches that are discussed below.
Approach 1: Create a <div> inside another <div> which has alphabet ‘X’ in it which helps in displaying the close button. When the “click” event occurs on ‘X’, then perform the operation. In this example... | [
{
"code": null,
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"text": "\n19 Jan, 2022"
},
{
"code": null,
"e": 133,
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"text": "The task is to make the close button using Pure CSS. There are two approaches that are discussed below. "
},
{
"code": null,
"e": 392,
"s": 133,
"text": "A... |
How to Create a Transparent Activity in Android? | 05 May, 2021
Many times we have to display a feature in our app where we have to use transparent activity inside our android app. In this article, we will take a look at creating a Transparent Activity in Android.
We will be building a simple application in which we will be displaying a simple TextView inside a transp... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n05 May, 2021"
},
{
"code": null,
"e": 230,
"s": 28,
"text": "Many times we have to display a feature in our app where we have to use transparent activity inside our android app. In this article, we will take a look at creating a Transpa... |
Python Django | Google authentication and Fetching mails from scratch | 30 Jun, 2020
Google Authentication and Fetching mails from scratch mean without using any module which has already set up this authentication process. We’ll be using Google API python client and oauth2client which is provided by Google. Sometimes, it really hard to implement this Google authentication with these librar... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n30 Jun, 2020"
},
{
"code": null,
"e": 476,
"s": 52,
"text": "Google Authentication and Fetching mails from scratch mean without using any module which has already set up this authentication process. We’ll be using Google API python cli... |
Python sympy | Matrix.eigenvects() method | 26 Aug, 2019
With the help of sympy.Matrix().eigenvects() method, we can find the Eigenvectors of a matrix. eigenvects() method returns a list of tuples of the form (eigenvalue:algebraic multiplicity, [eigenvectors]).
Syntax: Matrix().eigenvects()
Returns: Returns a list of tuples of the form (eigenvalue:algebraic mult... | [
{
"code": null,
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"s": 0,
"text": "\n26 Aug, 2019"
},
{
"code": null,
"e": 233,
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"text": "With the help of sympy.Matrix().eigenvects() method, we can find the Eigenvectors of a matrix. eigenvects() method returns a list of tuples of the form (eigenvalue:algebraic m... |
MySQL query to decrease the value of a specific record to zero? | Use SET to decrease the value and WHERE to set the condition for a specific record to be 0. Let us first create a table −
mysql> create table DemoTable
(
Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Number int
);
Query OK, 0 rows affected (0.54 sec)
Insert some records in the table using insert command &minus
m... | [
{
"code": null,
"e": 1184,
"s": 1062,
"text": "Use SET to decrease the value and WHERE to set the condition for a specific record to be 0. Let us first create a table −"
},
{
"code": null,
"e": 1320,
"s": 1184,
"text": "mysql> create table DemoTable\n (\n Id int NOT NULL AUTO... |
How To Analyze Survey Data With Python | by Benedikt Droste | Towards Data Science | If you work in market research, you probably also have to deal with survey data. Often these are available as SAV or SPSS files. SPSS is great for statistic analysis of survey data because variables, variable labels, values, and value labels are all integrated in one dataset. With SPSS, categorized variables are easy t... | [
{
"code": null,
"e": 503,
"s": 172,
"text": "If you work in market research, you probably also have to deal with survey data. Often these are available as SAV or SPSS files. SPSS is great for statistic analysis of survey data because variables, variable labels, values, and value labels are all integ... |
ShellSort - GeeksforGeeks | 17 Aug, 2021
ShellSort is mainly a variation of Insertion Sort. In insertion sort, we move elements only one position ahead. When an element has to be moved far ahead, many movements are involved. The idea of shellSort is to allow exchange of far items. In shellSort, we make the array h-sorted for a large value of h. W... | [
{
"code": null,
"e": 23055,
"s": 23027,
"text": "\n17 Aug, 2021"
},
{
"code": null,
"e": 23494,
"s": 23055,
"text": "ShellSort is mainly a variation of Insertion Sort. In insertion sort, we move elements only one position ahead. When an element has to be moved far ahead, many mov... |
Automated Data Quality Testing at Scale using Apache Spark | by Tanmay Deshpande | Towards Data Science | I have been working as a Technology Architect, mainly responsible for the Data Lake/Hub/Platform kind of projects. Every day we ingest data from 100+ business systems so that the data can be made available to the analytics and BI teams for their projects.
While ingesting data, we avoid any transformations. The data is ... | [
{
"code": null,
"e": 428,
"s": 172,
"text": "I have been working as a Technology Architect, mainly responsible for the Data Lake/Hub/Platform kind of projects. Every day we ingest data from 100+ business systems so that the data can be made available to the analytics and BI teams for their projects.... |
How do I plot a step function with Matplotlib in Python? | To plot a step function with matplotlib in Python, we can take the following steps −
Create data points for x and y.
Create data points for x and y.
Make a step plot using step() method.
Make a step plot using step() method.
To display the figure, use show() method.
To display the figure, use show() method.
import matp... | [
{
"code": null,
"e": 1147,
"s": 1062,
"text": "To plot a step function with matplotlib in Python, we can take the following steps −"
},
{
"code": null,
"e": 1179,
"s": 1147,
"text": "Create data points for x and y."
},
{
"code": null,
"e": 1211,
"s": 1179,
"te... |
Python | Pandas Series.repeat() - GeeksforGeeks | 10 Feb, 2019
Pandas series is a One-dimensional ndarray with axis labels. The labels need not be unique but must be a hashable type. The object supports both integer- and label-based indexing and provides a host of methods for performing operations involving the index.
Pandas Series.repeat() function repeat elements of... | [
{
"code": null,
"e": 24449,
"s": 24421,
"text": "\n10 Feb, 2019"
},
{
"code": null,
"e": 24706,
"s": 24449,
"text": "Pandas series is a One-dimensional ndarray with axis labels. The labels need not be unique but must be a hashable type. The object supports both integer- and label... |
Program to remove vowels from Linked List | 03 Jun, 2021
Given a singly linked list, the task is to remove the vowels from the given linked list.
Examples:
Input: g -> e -> e -> k -> s -> f -> o -> r -> g -> e -> e -> k -> s Output: g -> k -> s -> f -> r -> g -> k -> s Explanation: After removing vowels {e, e}, {o}, {e, e}. The linked list becomes g -> k -> s -... | [
{
"code": null,
"e": 54,
"s": 26,
"text": "\n03 Jun, 2021"
},
{
"code": null,
"e": 143,
"s": 54,
"text": "Given a singly linked list, the task is to remove the vowels from the given linked list."
},
{
"code": null,
"e": 154,
"s": 143,
"text": "Examples: "
},... |
Review Rating Prediction: A Combined Approach | by Yereya Berdugo | Towards Data Science | The rise in E — commerce, has brought a significant rise in the importance of customer reviews. There are hundreds of review sites online and massive amounts of reviews for every product. Customers have changed their way of shopping and according to a recent survey, 70 percent of customers say that they use rating filt... | [
{
"code": null,
"e": 544,
"s": 171,
"text": "The rise in E — commerce, has brought a significant rise in the importance of customer reviews. There are hundreds of review sites online and massive amounts of reviews for every product. Customers have changed their way of shopping and according to a rec... |
RequireJS - Loading jQuery from CDN | jQuery uses CDN (Content Delivery Network) to define the dependencies for jQuery plugins by calling the define() function.
define(["jquery", "jquery.load_js1", "jquery.load_js2"], function($) {
$(function() {
//code here
});
});
The following example uses CDN to define the dependencies for jQuery plugins. C... | [
{
"code": null,
"e": 1965,
"s": 1842,
"text": "jQuery uses CDN (Content Delivery Network) to define the dependencies for jQuery plugins by calling the define() function."
},
{
"code": null,
"e": 2083,
"s": 1965,
"text": "define([\"jquery\", \"jquery.load_js1\", \"jquery.load_js2\... |
Prototyping a Recommendation System | by Ben Weber | Towards Data Science | Hello World in R, Java, Scala, and SQL
Twitch has many products powered by recommendation systems including VOD recommendations, Clips recommendations, and similar channels. Before productizing a recommendation system at Twitch, the science team first prototypes a recommendation system to see if the output is useful fo... | [
{
"code": null,
"e": 211,
"s": 172,
"text": "Hello World in R, Java, Scala, and SQL"
},
{
"code": null,
"e": 670,
"s": 211,
"text": "Twitch has many products powered by recommendation systems including VOD recommendations, Clips recommendations, and similar channels. Before produ... |
Ramanujan Prime - GeeksforGeeks | 11 May, 2021
The Nth Ramanujan prime is the least integer Rn for which
where π(x) is a prime-counting functionNote that the integer Rn is necessarily a prime number: π(x) – π(x/2) and, hence, π(x) must increase by obtaining another prime at x = Rn. Since π(x) – π(x/2) can increase by at most 1, Range of Rn is (2n log(... | [
{
"code": null,
"e": 26897,
"s": 26869,
"text": "\n11 May, 2021"
},
{
"code": null,
"e": 26956,
"s": 26897,
"text": "The Nth Ramanujan prime is the least integer Rn for which "
},
{
"code": null,
"e": 27223,
"s": 26956,
"text": "where π(x) is a prime-counting ... |
How to check if a number evaluates to Infinity using JavaScript ? - GeeksforGeeks | 18 Oct, 2019
The task is to check whether number evaluates to infinity or not with the help of JavaScript. Here are few techniques discussed.Approach 1:
Checking if number is equal to Number.POSITIVE_INFINITY or Number.NEGATIVE_INFINITY .
Example 1: This example uses the approach as discussed above.
<!DOCTYPE HTML><htm... | [
{
"code": null,
"e": 25953,
"s": 25925,
"text": "\n18 Oct, 2019"
},
{
"code": null,
"e": 26093,
"s": 25953,
"text": "The task is to check whether number evaluates to infinity or not with the help of JavaScript. Here are few techniques discussed.Approach 1:"
},
{
"code": n... |
Recursive lambda expressions in C++ | 21 Jun, 2022
A recursive lambda expression is the process in which a function calls itself directly or indirectly is called recursion and the corresponding function is called a recursive function. Using a recursive algorithm, certain problems can be solved quite easily. Examples of such problems are Towers of Hanoi (TO... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n21 Jun, 2022"
},
{
"code": null,
"e": 402,
"s": 28,
"text": "A recursive lambda expression is the process in which a function calls itself directly or indirectly is called recursion and the corresponding function is called a recursive f... |
Python | Pandas Series.str.decode() | 27 Mar, 2019
Series.str can be used to access the values of the series as strings and apply several methods to it. Pandas Series.str.decode() function is used to decode character string in the Series/Index using indicated encoding. This function is equivalent to str.decode() in python2 and bytes.decode() in python3.
Sy... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n27 Mar, 2019"
},
{
"code": null,
"e": 333,
"s": 28,
"text": "Series.str can be used to access the values of the series as strings and apply several methods to it. Pandas Series.str.decode() function is used to decode character string in... |
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