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Web Scraping CryptoCurrency price and storing it in MongoDB using Python	29 Dec, 2020 Let us see how to fetch history price in USD or BTC, traded volume and market cap for a given date range using Santiment API and storing the data into MongoDB collection. Python is a mature language and getting much used in the Cryptocurrency domain. MongoDB is a NoSQL database getting paired with Python i...	[ { "code": null, "e": 28, "s": 0, "text": "\n29 Dec, 2020" }, { "code": null, "e": 199, "s": 28, "text": "Let us see how to fetch history price in USD or BTC, traded volume and market cap for a given date range using Santiment API and storing the data into MongoDB collection." }...
GATE \| GATE CS 2013 \| Question 65	13 Sep, 2021 Determine the maximum length of the cable (in km) for transmitting data at a rate of 500 Mbps in an Ethernet LAN with frames of size 10,000 bits. Assume the signal speed in the cable to be 2,00,000 km/s.(A) 1(B) 2(C) 2.5(D) 5Answer: (B)Explanation: Data should be transmitted at the rate of 500 Mbps. Transm...	[ { "code": null, "e": 54, "s": 26, "text": "\n13 Sep, 2021" }, { "code": null, "e": 303, "s": 54, "text": "Determine the maximum length of the cable (in km) for transmitting data at a rate of 500 Mbps in an Ethernet LAN with frames of size 10,000 bits. Assume the signal speed in t...
Huffman Coding \| Greedy Algo-3	19 Apr, 2022 Huffman coding is a lossless data compression algorithm. The idea is to assign variable-length codes to input characters, lengths of the assigned codes are based on the frequencies of corresponding characters. The most frequent character gets the smallest code and the least frequent character gets the larg...	[ { "code": null, "e": 52, "s": 24, "text": "\n19 Apr, 2022" }, { "code": null, "e": 1169, "s": 52, "text": "Huffman coding is a lossless data compression algorithm. The idea is to assign variable-length codes to input characters, lengths of the assigned codes are based on the freq...
How to Create custom Turtle shapes in Python?	19 Apr, 2021 In Turtle, by default, we have an arrowhead-shaped cursor for drawing on the canvas. This can be changed to some other predefined shape or we can also create a custom shape and register it under a name. Not just that, we can even use gif format images to replace our cursor. The shape() function is used to ...	[ { "code": null, "e": 52, "s": 24, "text": "\n19 Apr, 2021" }, { "code": null, "e": 327, "s": 52, "text": "In Turtle, by default, we have an arrowhead-shaped cursor for drawing on the canvas. This can be changed to some other predefined shape or we can also create a custom shape a...
PostgreSQL – Array Data Type	30 Jun, 2022 PostgreSQL Supports the concept of Arrays. All data type has a companion array associated with it irrespective of the properties of the data type.It is available even for user-defined data types. Syntax: variable_name DATA TYPE []; Now that we know the use and need of Arrays in PostgreSQL, let’s look into...	[ { "code": null, "e": 28, "s": 0, "text": "\n30 Jun, 2022" }, { "code": null, "e": 225, "s": 28, "text": "PostgreSQL Supports the concept of Arrays. All data type has a companion array associated with it irrespective of the properties of the data type.It is available even for use...
UGC-NET \| UGC NET CS 2017 Jan – III \| Question 50	27 Nov, 2018 Consider a disk queue with I/O requests on the following cylinders in their arriving order: 6, 10, 12, 54, 97, 73, 128, 15, 44, 110, 34, 45 The disk head is assumed to be at cylinder 23 and moving in the direction of decreasing number of cylinders. Total number of cylinders in the disk is 150. The disk he...	[ { "code": null, "e": 28, "s": 0, "text": "\n27 Nov, 2018" }, { "code": null, "e": 120, "s": 28, "text": "Consider a disk queue with I/O requests on the following cylinders in their arriving order:" }, { "code": null, "e": 169, "s": 120, "text": "6, 10, 12, 54,...
How to create an alert in JavaFX?	An alert is a dialog which shows pre-built dialog types. You can create an alert by instantiating the javafx.scene.control.Alert class. This class is a subclass of the Dialog class. You can create required type of dialog bypassing the respective parameter at the time of instantiation as − Alert alert = new Alert(Alert....	[ { "code": null, "e": 1352, "s": 1062, "text": "An alert is a dialog which shows pre-built dialog types. You can create an alert by instantiating the javafx.scene.control.Alert class. This class is a subclass of the Dialog class. You can create required type of dialog bypassing the respective paramet...
MySQL INSERT INTO SELECT into a table with AUTO_INCREMENT	Let us create a table − mysql> create table DemoTable1923 ( UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY, UserName varchar(20) ); Query OK, 0 rows affected (0.00 sec) Insert some records in the table using insert command − mysql> insert into DemoTable1923(UserId,UserName) select 101 as UserId,'Chris'...	[ { "code": null, "e": 1086, "s": 1062, "text": "Let us create a table −" }, { "code": null, "e": 1243, "s": 1086, "text": "mysql> create table DemoTable1923\n (\n UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY,\n UserName varchar(20)\n );\nQuery OK, 0 rows affected (0.00 s...
How to represent the mean with vertical line in a histogram created by hist function in R?	The value of mean is an important characteristic of the data to be represented by a histogram, therefore, one might want to plot it with the histogram. If the histogram is created by using hist function then we can create a vertical line on the histogram with the help of abline function by defining mean of the data for...	[ { "code": null, "e": 1404, "s": 1062, "text": "The value of mean is an important characteristic of the data to be represented by a histogram, therefore, one might want to plot it with the histogram. If the histogram is created by using hist function then we can create a vertical line on the histogra...
exit - Unix, Linux Command	exit-The exit command terminates a script, just as in a C program. It can also return a value, which is available to the script's parent process. exit exit-Issuing the exit command at the shell prompt will cause the shell to exit. In some cases, if you have jobs running in the background, the shell will remind you tha...	[ { "code": null, "e": 10723, "s": 10577, "text": "exit-The exit command terminates a script, just as in a C program. It can also return a value, which is available to the script's parent process." }, { "code": null, "e": 10728, "s": 10723, "text": "exit" }, { "code": null,...
Explaining a BigQuery ML model. How to obtain and interpret... \| by Lak Lakshmanan \| Towards Data Science	BigQuery ML is an easy-to-use way to invoke machine learning models on structured data using just SQL. Although it started with only linear regression, more sophisticated models like Deep Neural Networks and AutoML Tables have been added by connecting BigQuery ML with TensorFlow and Vertex AI as its backend. In other w...	[ { "code": null, "e": 555, "s": 172, "text": "BigQuery ML is an easy-to-use way to invoke machine learning models on structured data using just SQL. Although it started with only linear regression, more sophisticated models like Deep Neural Networks and AutoML Tables have been added by connecting Big...
Next Greater Even Number \| Practice \| GeeksforGeeks	Given a positive integer X. The task is to find the smallest even number E such that E > X and all digits in X and E are same. Note: All the digits in X should be same with digits in E. Example 1: Input: X = 34722641 Output: 34724126 Explanation: Next greater number with same digits as in input is 34724126. Example...	[ { "code": null, "e": 365, "s": 238, "text": "Given a positive integer X. The task is to find the smallest even number E such that\nE > X and all digits in X and E are same." }, { "code": null, "e": 424, "s": 365, "text": "Note: All the digits in X should be same with digits in E....
Hands On Bayesian Statistics with Python, PyMC3 & ArviZ \| by Susan Li \| Towards Data Science	If you think Bayes’ theorem is counter-intuitive and Bayesian statistics, which builds upon Baye’s theorem, can be very hard to understand. I am with you. There are countless reasons why we should learn Bayesian statistics, in particular, Bayesian statistics is emerging as a powerful framework to express and understand...	[ { "code": null, "e": 327, "s": 172, "text": "If you think Bayes’ theorem is counter-intuitive and Bayesian statistics, which builds upon Baye’s theorem, can be very hard to understand. I am with you." }, { "code": null, "e": 531, "s": 327, "text": "There are countless reasons why...
Visualize Missing Values with Missingno \| by Soner Yıldırım \| Towards Data Science	Data is the new fuel. However, the raw data is cheap. We need to process it well to take the most value out of it. Complex, well-structured models are as good as the data we feed to them. Thus, data needs to be cleaned and processed thoroughly in order to build robust and accurate models. One of the issues that we are ...	[ { "code": null, "e": 461, "s": 171, "text": "Data is the new fuel. However, the raw data is cheap. We need to process it well to take the most value out of it. Complex, well-structured models are as good as the data we feed to them. Thus, data needs to be cleaned and processed thoroughly in order to...
Pedestrian detection in Aerial Images using RetinaNet \| by Priya Dwivedi \| Towards Data Science	Object Detection in Aerial Images is a challenging and interesting problem. With the cost of drones decreasing, there is a surge in amount of aerial data being generated. It will be very useful to have models that can extract valuable information from aerial data. Retina Net is the most famous single stage detector and...	[ { "code": null, "e": 962, "s": 172, "text": "Object Detection in Aerial Images is a challenging and interesting problem. With the cost of drones decreasing, there is a surge in amount of aerial data being generated. It will be very useful to have models that can extract valuable information from aer...
WPF - Popup	Popup is a control that displays content on top of existing content, within the bounds of the application window. It is a temporary display on other content. The hierarchical inheritance of Popup class is as follows − Child Gets or sets the content to be hosted in the popup. ChildProperty Gets the identifier for the Ch...	[ { "code": null, "e": 2238, "s": 2020, "text": "Popup is a control that displays content on top of existing content, within the bounds of the application window. It is a temporary display on other content. The hierarchical inheritance of Popup class is as follows −" }, { "code": null, "e"...
ByteBuffer array() method in Java with Examples - GeeksforGeeks	03 Jun, 2021 The array() method of java.nio.ByteBuffer class is used to return the byte array that backs the taken buffer.Modifications to this buffer’s content will cause the returned array’s content to be modified, and vice versa.Invoke the hasArray() method before invoking this method in order to ensure that this bu...	[ { "code": null, "e": 24518, "s": 24490, "text": "\n03 Jun, 2021" }, { "code": null, "e": 24863, "s": 24518, "text": "The array() method of java.nio.ByteBuffer class is used to return the byte array that backs the taken buffer.Modifications to this buffer’s content will cause the ...
Android - Audio Capture	Android has a built in microphone through which you can capture audio and store it , or play it in your phone. There are many ways to do that but the most common way is through MediaRecorder class. Android provides MediaRecorder class to record audio or video. In order to use MediaRecorder class ,you will first create ...	[ { "code": null, "e": 3805, "s": 3607, "text": "Android has a built in microphone through which you can capture audio and store it , or play it in your phone. There are many ways to do that but the most common way is through MediaRecorder class." }, { "code": null, "e": 3990, "s": 380...
Python - Box Plots	Boxplots are a measure of how well distributed the data in a data set is. It divides the data set into three quartiles. This graph represents the minimum, maximum, median, first quartile and third quartile in the data set. It is also useful in comparing the distribution of data across data sets by drawing boxplots for ...	[ { "code": null, "e": 2863, "s": 2529, "text": "Boxplots are a measure of how well distributed the data in a data set is. It divides the data set into three quartiles. This graph represents the minimum, maximum, median, first quartile and third quartile in the data set. It is also useful in comparing...
How to resolve CORS issue in C# ASP.NET WebAPI?	Cross-Origin Resource Sharing (CORS) is a mechanism that uses additional HTTP headers to tell browsers to give a web application running at one origin, access to selected resources from a different origin. A web application executes a cross-origin HTTP request when it requests a resource that has a different origin (do...	[ { "code": null, "e": 1421, "s": 1062, "text": "Cross-Origin Resource Sharing (CORS) is a mechanism that uses additional HTTP headers to tell browsers to give a web application running at one origin, access to selected resources from a different origin. A web application executes a cross-origin HTTP ...
Java class Keyword	❮ Java Keywords Create a class named "Main": public class Main { public static void main(String[] args) { System.out.println("Hello World"); } } Try it Yourself » The class keyword is used to create a class. Every line of code that runs in Java must be inside a class. A class should always start with an upp...	[ { "code": null, "e": 18, "s": 0, "text": "\n❮ Java Keywords\n" }, { "code": null, "e": 47, "s": 18, "text": "Create a class named \"Main\":" }, { "code": null, "e": 156, "s": 47, "text": "public class Main {\n public static void main(String[] args) {\n Sys...
How to insert a Python object in MySQL?	Assuming that a MySQL database named 'test' is present on the server and a table named employee is also created. Let the table have five fields fname, lname, age, gender, and salary. Suppose we want to insert a tuple object containing data of a record defined as follows into the Msql database. t1=('Steven', 'Assange', ...	[ { "code": null, "e": 1245, "s": 1062, "text": "Assuming that a MySQL database named 'test' is present on the server and a table named employee is also created. Let the table have five fields fname, lname, age, gender, and salary." }, { "code": null, "e": 1357, "s": 1245, "text": ...
SAS - Scatter Plots	A scatterplot is a type of graph which uses values from two variables plotted in a Cartesian plane. It is usually used to find out the relationship between two variables. In SAS we use PROC SGSCATTER to create scatterplots. Please note that we create the data set named CARS1 in the first example and use the same data s...	[ { "code": null, "e": 2807, "s": 2583, "text": "A scatterplot is a type of graph which uses values from two variables plotted in a Cartesian plane. It is usually used to find out the relationship between two variables. In SAS we use PROC SGSCATTER to create scatterplots." }, { "code": null, ...
Python - Check if two lists have any element in common	During manipulating data using python lists, we come across a situation where we need to know if two lists are entirely different from each other or they have any element in common. This can be found out by comparing the elements in the two lists with the below approaches decribed. In a for loop we use the in clause to...	[ { "code": null, "e": 1345, "s": 1062, "text": "During manipulating data using python lists, we come across a situation where we need to know if two lists are entirely different from each other or they have any element in common. This can be found out by comparing the elements in the two lists with t...
Building a Collaborative Filtering Recommender System with ClickStream Data \| by Susan Li \| Towards Data Science	Recommender systems are everywhere, helping you find everything from books to romantic dates, hotels to restaurants. There are all kinds of recommender systems for all sorts of situations, depends on your needs and available data. Explicit vs Implicit Let’s face it, explicit feedback is hard to collect as they require ...	[ { "code": null, "e": 289, "s": 172, "text": "Recommender systems are everywhere, helping you find everything from books to romantic dates, hotels to restaurants." }, { "code": null, "e": 403, "s": 289, "text": "There are all kinds of recommender systems for all sorts of situation...
Styling in React.js	Styling in React.js can be done in below two ways css style sheets inline style We have App.js file as shown below − import React, {Component} from 'react'; import './App.css'; class App extends Component { render(){ return ( <div className="App"> <p className="myColoredText">Styling React...	[ { "code": null, "e": 1112, "s": 1062, "text": "Styling in React.js can be done in below two ways" }, { "code": null, "e": 1129, "s": 1112, "text": "css style sheets" }, { "code": null, "e": 1142, "s": 1129, "text": "inline style" }, { "code": null, ...
AVRO - Serialization By Generating Class	One can read an Avro schema into the program either by generating a class corresponding to a schema or by using the parsers library. This chapter describes how to read the schema by generating a class and Serializing the data using Avr. To serialize the data using Avro, follow the steps as given below − Write an Avro s...	[ { "code": null, "e": 2098, "s": 1861, "text": "One can read an Avro schema into the program either by generating a class corresponding to a schema or by using the parsers library. This chapter describes how to read the schema by generating a class and Serializing the data using Avr." }, { "c...
What are Lvalues and Rvalues in C++?	An lvalue (locator value) represents an object that occupies some identifiable location in memory (i.e. has an address). rvalues are defined by exclusion. Every expression is either an lvalue or an rvalue, so, an rvalue is an expression that does not represent an object occupying some identifiable location in memory. F...	[ { "code": null, "e": 1183, "s": 1062, "text": "An lvalue (locator value) represents an object that occupies some identifiable location in memory (i.e. has an address)." }, { "code": null, "e": 1381, "s": 1183, "text": "rvalues are defined by exclusion. Every expression is either ...
Order-Agnostic Binary Search	20 Jun, 2022 Order-Agnostic Binary Search is a modified version of Binary Search algorithm. Here in this modified binary search comes with one more condition checking. The intuition behind this algorithm is what if the order of the sorted array is not given. So here check that the value of the first element is greater ...	[ { "code": null, "e": 52, "s": 24, "text": "\n20 Jun, 2022" }, { "code": null, "e": 393, "s": 52, "text": "Order-Agnostic Binary Search is a modified version of Binary Search algorithm. Here in this modified binary search comes with one more condition checking. The intuition behin...
How to find Nth highest salary from a table	17 Jan, 2022 Finding Nth highest salary in a table is the most common question asked in interviews. Here is a way to do this task using dense_rank() function. Consider the following table: Employee Query : select * from( select ename, sal, dense_rank() over(order by sal desc)r from Employee) where r=&n; To find...	[ { "code": null, "e": 54, "s": 26, "text": "\n17 Jan, 2022" }, { "code": null, "e": 201, "s": 54, "text": "Finding Nth highest salary in a table is the most common question asked in interviews. Here is a way to do this task using dense_rank() function. " }, { "code": null,...
Ternary number system or Base 3 numbers	18 Nov, 2021 A number system can be considered as a mathematical notation of numbers using a set of digits or symbols. In simpler words, the number system is a method of representing numbers. Every number system is identified with the help of its base or radix. For example, Binary, Octal, Decimal and Hexadecimal Numbe...	[ { "code": null, "e": 54, "s": 26, "text": "\n18 Nov, 2021" }, { "code": null, "e": 304, "s": 54, "text": "A number system can be considered as a mathematical notation of numbers using a set of digits or symbols. In simpler words, the number system is a method of representing numb...
Python String \| replace()	08 Jul, 2022 replace() is an inbuilt function in the Python programming language that returns a copy of the string where all occurrences of a substring are replaced with another substring. Syntax : string.replace(old, new, count) Parameters : old – old substring you want to replace. new – new substring which would...	[ { "code": null, "e": 52, "s": 24, "text": "\n08 Jul, 2022" }, { "code": null, "e": 230, "s": 52, "text": "replace() is an inbuilt function in the Python programming language that returns a copy of the string where all occurrences of a substring are replaced with another substring...
Magic Square	The magic square is a square matrix, whose order is odd and where the sum of the elements for each row or each column or each diagonal is same. The sum of each row or each column or each diagonal can be found using this formula. n(n2+ 1)/2 Here are the rules to construct a magic square − We will start from the middle ...	[ { "code": null, "e": 1332, "s": 1187, "text": "The magic square is a square matrix, whose order is odd and where the sum of the elements for each row or each column or each diagonal is same. " }, { "code": null, "e": 1428, "s": 1332, "text": "The sum of each row or each column or...
Recursive Descent Parser	01 Jun, 2021 Prerequisite – Construction of LL(1) Parsing Table, Classification of top down parsers Parsing is the process to determine whether the start symbol can derive the program or not. If the Parsing is successful then the program is a valid program otherwise the program is invalid. There are generally two types...	[ { "code": null, "e": 54, "s": 26, "text": "\n01 Jun, 2021" }, { "code": null, "e": 376, "s": 54, "text": "Prerequisite – Construction of LL(1) Parsing Table, Classification of top down parsers Parsing is the process to determine whether the start symbol can derive the program or ...
Angular ng Bootstrap Accordion Component	06 Jul, 2021 Angular ng bootstrap is a bootstrap framework used with angular to create components with great styling and this framework is very easy to use and is used to make responsive websites. In this article we will know how to use Accordion in angular ng bootstrap. Accordion is used to display collapsible content...	[ { "code": null, "e": 28, "s": 0, "text": "\n06 Jul, 2021" }, { "code": null, "e": 212, "s": 28, "text": "Angular ng bootstrap is a bootstrap framework used with angular to create components with great styling and this framework is very easy to use and is used to make responsive w...
Scala Map tail() method with example	13 Aug, 2019 The tail() method is utilized to display all the elements of the map except the first one. Method Definition: def tail: Map[A, B] Return Type: It returns all the elements of the stated map except the first one. Example #1: // Scala program of tail()// method // Creating objectobject GfG{ // Main met...	[ { "code": null, "e": 28, "s": 0, "text": "\n13 Aug, 2019" }, { "code": null, "e": 119, "s": 28, "text": "The tail() method is utilized to display all the elements of the map except the first one." }, { "code": null, "e": 158, "s": 119, "text": "Method Definiti...
Check if two numbers are co-prime or not - GeeksforGeeks	20 Apr, 2021 Two numbers A and B are said to be Co-Prime or mutually prime if the Greatest Common Divisor of them is 1. You have been given two numbers A and B, find if they are Co-prime or not.Examples : Input : 2 3 Output : Co-Prime Input : 4 8 Output : Not Co-Prime C++ Java Python3 C# PHP Javascript // CPP pr...	[ { "code": null, "e": 24871, "s": 24843, "text": "\n20 Apr, 2021" }, { "code": null, "e": 25065, "s": 24871, "text": "Two numbers A and B are said to be Co-Prime or mutually prime if the Greatest Common Divisor of them is 1. You have been given two numbers A and B, find if they ar...
\theta - Tex Command	\theta - Used to create lower case Greek theta symbol. { \theta} \theta command draws theta symbol. \theta θ \theta θ \theta 14 Lectures 52 mins Ashraf Said 11 Lectures 1 hours Ashraf Said 9 Lectures 1 hours Emenwa Global, Ejike IfeanyiChukwu 29 Lectures 2.5 h...	[ { "code": null, "e": 8041, "s": 7986, "text": "\\theta - Used to create lower case Greek theta symbol." }, { "code": null, "e": 8051, "s": 8041, "text": "{ \\theta}" }, { "code": null, "e": 8086, "s": 8051, "text": "\\theta command draws theta symbol." }, ...
12 Python Tips and Tricks For Writing Better Code \| by Pavel Tech \| Towards Data Science	F-Strings provide a concise and convenient way to embed Python expressions inside string literals for formatting. First, let’s define two variables name and age that you want to include in our print statement. name = "Pavel"age = 23 To not deal with string concatenation or using commas inside the print statement, you c...	[ { "code": null, "e": 286, "s": 172, "text": "F-Strings provide a concise and convenient way to embed Python expressions inside string literals for formatting." }, { "code": null, "e": 382, "s": 286, "text": "First, let’s define two variables name and age that you want to include ...
Python program to display all second lowest grade student name from nested list	Suppose we have the names and grades for each student in a nested list we have to display the names of any students having the second lowest grade. If there are more than one students with the second lowest grade, reorder these in an alphabetical order and print each name on a new line. So, if the input is like student...	[ { "code": null, "e": 1350, "s": 1062, "text": "Suppose we have the names and grades for each student in a nested list we have to display the names of any students having the second lowest grade. If there are more than one students with the second lowest grade, reorder these in an alphabetical order ...