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Collect.js contains() Method - GeeksforGeeks | 29 Jul, 2020
The contains() method is used to determines whether the collection contains a given item or not. If it contains the item then it returns true otherwise false. The JavaScript array is first transformed into a collection and then the function is applied to the collection.
Syntax:
collect(array).contains(it... | [
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"code": null,
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"text": "The contains() method is used to determines whether the collection contains a given item or not. If it contains the item then it returns true otherwise false. The ... |
Replace Inf with NA in Dataframe in R - GeeksforGeeks | 27 Sep, 2021
In this article, we will discuss how to replace Inf (Infinity) with NA in Dataframe in R Programming Language.
Create a dataframe with for demonstration:
R
# create a dataframe with 3 columns and 5 rowsdata=data.frame(column1 = c(Inf, 2, 3, 4, 5), column2 = c(1, Inf, 1, Inf, 1), ... | [
{
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},
{
"code": null,
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"text": "In this article, we will discuss how to replace Inf (Infinity) with NA in Dataframe in R Programming Language."
},
{
"code": null,
"e": 25005,
"s":... |
The Beginner’s Guide to Acing SQL Interviews for Data Scientists | by Pedram Ataee, PhD | Towards Data Science | At most data science interviews, your SQL skill will be examined in some way. You must write some SQL queries in your technical interviews and many of them in your day-to-day job. It does not matter whether you work at a small or a big company, SQL programming is an important tool in your toolbox. You can use SQL progr... | [
{
"code": null,
"e": 468,
"s": 46,
"text": "At most data science interviews, your SQL skill will be examined in some way. You must write some SQL queries in your technical interviews and many of them in your day-to-day job. It does not matter whether you work at a small or a big company, SQL program... |
Arduino - Advanced I/O Function | In this chapter, we will learn some advanced Input and Output Functions.
Configures the reference voltage used for analog input (i.e. the value used as the top of the input range). The options are −
DEFAULT − The default analog reference of 5 volts (on 5V Arduino boards) or 3.3 volts (on 3.3V Arduino boards)
DEFAULT − ... | [
{
"code": null,
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"text": "In this chapter, we will learn some advanced Input and Output Functions."
},
{
"code": null,
"e": 3069,
"s": 2943,
"text": "Configures the reference voltage used for analog input (i.e. the value used as the top of the input range). T... |
Angular 8 - Reactive Programming | Reactive programming is a programming paradigm dealing with data streams and the propagation of changes. Data streams may be static or dynamic. An example of static data stream is an array or collection of data. It will have an initial quantity and it will not change. An example for dynamic data stream is event emitter... | [
{
"code": null,
"e": 2869,
"s": 2388,
"text": "Reactive programming is a programming paradigm dealing with data streams and the propagation of changes. Data streams may be static or dynamic. An example of static data stream is an array or collection of data. It will have an initial quantity and it w... |
Check if a HashMap is empty in Java | Use the isEmpty() method to check of a HashMap is empty or not. Let us first create the HashMap −
HashMap hm = new HashMap();
Now, add some elements −
hm.put("Bag", new Integer(1100));
hm.put("Wallet", new Integer(700));
hm.put("Belt", new Integer(600));
Since, we added elements above, therefore, the HashMap isn’t empt... | [
{
"code": null,
"e": 1160,
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"text": "Use the isEmpty() method to check of a HashMap is empty or not. Let us first create the HashMap −"
},
{
"code": null,
"e": 1188,
"s": 1160,
"text": "HashMap hm = new HashMap();"
},
{
"code": null,
"e": 1213,
"s": 1188... |
How to Create Shrink Header on Scroll using HTML, CSS and JavaScript ? - GeeksforGeeks | 09 Feb, 2022
Shrink Navigation bar works when the user scrolls down the page. In this article, we will use HTML, CSS, and JavaScript to design shrink navigation bar. HTML is used to create the structure, CSS is used to set the style on HTML structure to make it looks good. This kind of shrinking navbar looks attractive... | [
{
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"text": "\n09 Feb, 2022"
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{
"code": null,
"e": 25965,
"s": 25376,
"text": "Shrink Navigation bar works when the user scrolls down the page. In this article, we will use HTML, CSS, and JavaScript to design shrink navigation bar. HTML is us... |
C# Program to Demonstrate Abstract Class with Multiple-level Inheritance - GeeksforGeeks | 01 Nov, 2021
Abstract Class is the way to achieve abstraction. It is a special class that never be instantiated directly. This class should contain at least one abstract method in it and mark by abstract keyword in the class definition. The main purpose of this class is to give a blueprint for derived classes and set s... | [
{
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"text": "\n01 Nov, 2021"
},
{
"code": null,
"e": 24906,
"s": 24400,
"text": "Abstract Class is the way to achieve abstraction. It is a special class that never be instantiated directly. This class should contain at least one abstract method... |
Find Cube root of a number using Log function - GeeksforGeeks | 17 Mar, 2021
Given number N, the task is to find the cube root using log function.Examples:
Input: N = 8 Output: 2.000000Input: N = 27 Output: 3.000000
Approach: To solve the problem mentioned above we will use log() function, according to the following formula:
Let cube root of N be d. => ∛N = d => N(1/3) = d No... | [
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"text": "Given number N, the task is to find the cube root using log function.Examples: "
},
{
"code": null,
"e": 24834,
"s": 24772,
"text": "Input: N =... |
Zip Code validation using Java Regular Expressions | The zip code can be validated using the java.util.regex.Pattern.matches() method. This method matches the regular expression for the zip code and the given input zip code and returns true if they match and false otherwise.
A program that demonstrates this is given as follows:
Live Demo
public class Demo {
public st... | [
{
"code": null,
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"text": "The zip code can be validated using the java.util.regex.Pattern.matches() method. This method matches the regular expression for the zip code and the given input zip code and returns true if they match and false otherwise."
},
{
"code": null,
... |
How to deal with error “Error in shapiro.test(...) : sample size must be between 3 and 5000” in R? | The shapiro.test has a restriction in R that it can be applied only up to a sample of size 5000 and the least sample size must be 3. Therefore, we have an alternative hypothesis test called Anderson Darling normality test. To perform this test, we need load nortest package and use the ad.test function as shown in the b... | [
{
"code": null,
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"text": "The shapiro.test has a restriction in R that it can be applied only up to a sample of size 5000 and the least sample size must be 3. Therefore, we have an alternative hypothesis test called Anderson Darling normality test. To perform this test, we need ... |
How to create Static Variables in JavaScript ? - GeeksforGeeks | 22 Jun, 2021
In this article, we will learn to create static variables in JavaScript.
Static keyword in JavaScript: The static keyword is used to define a static method or property of a class. To call the static method we do not need to create an instance or object of the class.
Static variable in JavaScript: We used t... | [
{
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},
{
"code": null,
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"text": "In this article, we will learn to create static variables in JavaScript."
},
{
"code": null,
"e": 25487,
"s": 25293,
"text": "Static keyword in... |
LDA on the Texts of Harry Potter. Topic Modeling with Latent Dirichlet... | by Greg Rafferty | Towards Data Science | I’m Greg Rafferty, a data scientist in the Bay Area. You can check out the code for this project on my github. Feel free to contact me with any questions!
In this post, I’ll describe topic modeling with Latent Dirichlet Allocation and compare different algorithms for it, through the lens of Harry Potter. Upcoming posts... | [
{
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"text": "I’m Greg Rafferty, a data scientist in the Bay Area. You can check out the code for this project on my github. Feel free to contact me with any questions!"
},
{
"code": null,
"e": 566,
"s": 326,
"text": "In this post, I’ll describe top... |
difftime() function in C++ - GeeksforGeeks | 01 Oct, 2018
The difftime() function is defined in ctime header file. The difftime() function is used to calculate the difference between two times in second.
Syntax:
double difftime(time_t end, time_t start);
Parameters: This method accepts two parameters:
start: time_t object for start time.
end: time_t object for en... | [
{
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},
{
"code": null,
"e": 24282,
"s": 24136,
"text": "The difftime() function is defined in ctime header file. The difftime() function is used to calculate the difference between two times in second."
},
{
"co... |
Apache NiFi - Monitoring | In Apache NiFi, there are multiple ways to monitor the different statistics of the system like errors, memory usage, CPU usage, Data Flow statistics, etc. We will discuss the most popular ones in this tutorial.
In this section, we will learn more about in built monitoring in Apache NiFi.
The bulletin board shows the la... | [
{
"code": null,
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"text": "In Apache NiFi, there are multiple ways to monitor the different statistics of the system like errors, memory usage, CPU usage, Data Flow statistics, etc. We will discuss the most popular ones in this tutorial."
},
{
"code": null,
"e": 2607,... |
Largest subarray of 0's and 1's | Practice | GeeksforGeeks | Given an array of 0s and 1s. Find the length of the largest subarray with equal number of 0s and 1s.
Example 1:
Input:
N = 4
A[] = {0,1,0,1}
Output: 4
Explanation: The array from index [0...3]
contains equal number of 0's and 1's.
Thus maximum length of subarray having
equal number of 0's and 1's is 4.
Example 2:
Inpu... | [
{
"code": null,
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"text": "Given an array of 0s and 1s. Find the length of the largest subarray with equal number of 0s and 1s."
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{
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"text": "Example 1:"
},
{
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"text": "Input... |
How to Easily Create Tables in Python | by Luay Matalka | Towards Data Science | Being able to quickly organize our data into a more readable format, such as when data wrangling, can be extremely helpful in order to analyze the data and plan the next steps. Python offers the ability to easily turn certain tabular data types into nicely formatted plain-text tables, and that’s with the tabulate funct... | [
{
"code": null,
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"text": "Being able to quickly organize our data into a more readable format, such as when data wrangling, can be extremely helpful in order to analyze the data and plan the next steps. Python offers the ability to easily turn certain tabular data types into nicel... |
How to determine the order of bars in a matplotlib bar chart? | To determine the order of bars in a bar chart in matplotlib, we can take the following steps −
Set the figure size and adjust the padding between and around the subplots.
Make a dataframe, df, of two-dimensional, size-mutable, potentially heterogeneous tabular data.
Add a subplot to the current figure.
Make a bar plot ... | [
{
"code": null,
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"text": "To determine the order of bars in a bar chart in matplotlib, we can take the following steps −"
},
{
"code": null,
"e": 1233,
"s": 1157,
"text": "Set the figure size and adjust the padding between and around the subplots."
},
{
... |
Apache POI Word - Font & Alignment | This chapter shows how to apply different font styles and alignments in a Word document using Java. Generally, Font Style contains: Font size, Type, Bold, Italic, and Underline. And Alignment is categorized into left, center, right, and justify.
The following code is used to set different styles of font −
import java.i... | [
{
"code": null,
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"text": "This chapter shows how to apply different font styles and alignments in a Word document using Java. Generally, Font Style contains: Font size, Type, Bold, Italic, and Underline. And Alignment is categorized into left, center, right, and justify."
},
... |
Matplotlib - Pie Chart | A Pie Chart can only display one series of data. Pie charts show the size of items (called wedge) in one data series, proportional to the sum of the items. The data points in a pie chart are shown as a percentage of the whole pie.
Matplotlib API has a pie() function that generates a pie diagram representing data in an ... | [
{
"code": null,
"e": 2747,
"s": 2516,
"text": "A Pie Chart can only display one series of data. Pie charts show the size of items (called wedge) in one data series, proportional to the sum of the items. The data points in a pie chart are shown as a percentage of the whole pie."
},
{
"code": ... |
Filter away object in array with null values JavaScript | Let’s say, we have an array of objects about some employees of a company. But the array
contains some bad data i.e., key pointing to empty strings or false values. Our job is to write a
function that takes in the array and away the objects that have null or undefined or empty string
value for the name key and return th... | [
{
"code": null,
"e": 1396,
"s": 1062,
"text": "Let’s say, we have an array of objects about some employees of a company. But the array\ncontains some bad data i.e., key pointing to empty strings or false values. Our job is to write a\nfunction that takes in the array and away the objects that have n... |
CSS units - %, em, rem, px, vh, vw - GeeksforGeeks | 21 Apr, 2022
In this article, we will see how to set the CSS units in different ways.
% – The % unit is used to set the font-size relative to the current font-size.
em – It is used to set the relative size. It is relative to the font-size of the element. Note: Here 2em meaning 2times the size of current font.
rem – ... | [
{
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"text": "\n21 Apr, 2022"
},
{
"code": null,
"e": 25450,
"s": 25376,
"text": "In this article, we will see how to set the CSS units in different ways. "
},
{
"code": null,
"e": 25530,
"s": 25450,
"text": "% – The % unit i... |
Generating Random Numbers in Golang - GeeksforGeeks | 15 Apr, 2020
Golang provides a package math/rand for generating pseudorandom numbers. This package basically uses a single source that causes the production of a deterministic sequence of values each time a program is executed. Here, if you need different output or outcome for each execution, you can use the seed funct... | [
{
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"text": "\n15 Apr, 2020"
},
{
"code": null,
"e": 25012,
"s": 24460,
"text": "Golang provides a package math/rand for generating pseudorandom numbers. This package basically uses a single source that causes the production of a deterministic ... |
How to directly modify a specific item in a TKinter listbox? | Tkinter is a Python-based GUI application development library which is generally used to build useful functional desktop applications. The Listbox widget is another tkinter widget, which is used as a container to display a list of items in the form of a Listbox.
To define a list of items in a Listbox widget, you'll nee... | [
{
"code": null,
"e": 1325,
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"text": "Tkinter is a Python-based GUI application development library which is generally used to build useful functional desktop applications. The Listbox widget is another tkinter widget, which is used as a container to display a list of items in the form of a... |
Aptitude | GATE CS 1998 | Question 47 - GeeksforGeeks | 15 Mar, 2018
What value would the following function return for the input x=95 ?
function fun (x:integer):integer;
Begin
If x >100 then fun = x-10
Else fun = fun(fun( x+11))
End;
(A) 89(B) 90(C) 91(D) 92Answer: (C)Explanation: for solution refer ISRO CS 2017So option C is correctQuiz of this Question
Aptitude
Apti... | [
{
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"text": "\n15 Mar, 2018"
},
{
"code": null,
"e": 24512,
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"text": "What value would the following function return for the input x=95 ?"
},
{
"code": null,
"e": 24615,
"s": 24512,
"text": "function fun (x:intege... |
Establishing the two-way Communication between Server and Client in Java - GeeksforGeeks | 14 Oct, 2019
It is possible to send data from the server and receive a response from the client. Similarly, the client can also send and receive data to-and-from.
Below are the various steps to do so:
We need additional streams both at server and client. For example, to receive data into the server, it is a better idea... | [
{
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"text": "\n14 Oct, 2019"
},
{
"code": null,
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"text": "It is possible to send data from the server and receive a response from the client. Similarly, the client can also send and receive data to-and-from."
},
{
... |
Change the size and position of button in Kivy - GeeksforGeeks | 19 Oct, 2021
Kivy is a platform independent GUI tool in Python. As it can be run on Android, IOS, linux and Windows etc. It is basically used to develop the Android application, but it does not mean that it can not be used on Desktops applications.In this article, we will see that how can we can change the size and the... | [
{
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"s": 24384,
"text": "\n19 Oct, 2021"
},
{
"code": null,
"e": 24918,
"s": 24412,
"text": "Kivy is a platform independent GUI tool in Python. As it can be run on Android, IOS, linux and Windows etc. It is basically used to develop the Android application... |
Python MySQL - Introduction | The Python standard for database interfaces is the Python DB-API. Most Python database interfaces adhere to this standard.
You can choose the right database for your application. Python Database API supports a wide range of database servers such as −
GadFly
mSQL
MySQL
PostgreSQL
Microsoft SQL Server 2000
Informix
Inter... | [
{
"code": null,
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"text": "The Python standard for database interfaces is the Python DB-API. Most Python database interfaces adhere to this standard."
},
{
"code": null,
"e": 2470,
"s": 2342,
"text": "You can choose the right database for your application. Pyt... |
Java Program to Concatenate Two Arrays | One way of doing it is, create an array of length equals to the sum of lengths of the two arrays and, add elements of both arrays to it one by one.
Live Demo
public class HelloWorld {
public static void main(String[] args) {
int[]a = {1,2,3,4};
int[]b = {4,16,1,2,3,22};
int[]c = new int[a.length+b.... | [
{
"code": null,
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"text": "One way of doing it is, create an array of length equals to the sum of lengths of the two arrays and, add elements of both arrays to it one by one."
},
{
"code": null,
"e": 1220,
"s": 1210,
"text": "Live Demo"
},
{
"code": nu... |
\sf - Tex Command | \sf - Used to turn on sans serif mode for uppercase and lowercase letters and digits, and for uppercase Greek.
{ \sf}
\sf command turns on sans serif mode for uppercase and lowercase letters and digits, and for uppercase Greek.
\sf ABCDEFGHIJKLMNOPQRSTUVWXYZ
ABCDEFGHIJKLMNOPQRSTUVWXYZ
\sf 0123456789
0123456789
\... | [
{
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"text": "\\sf - Used to turn on sans serif mode for uppercase and lowercase letters and digits, and for uppercase Greek."
},
{
"code": null,
"e": 8104,
"s": 8097,
"text": "{ \\sf}"
},
{
"code": null,
"e": 8214,
"s": 8104,
... |
Tryit Editor v3.7 | Tryit: Create input field with an icon inside | [] |
How to unzip all zipped files in a Linux directory? | Unzip is the Linux command utility that we will use to unzip all zipped files present in a Linux directory.
By default, the unzip utility is not present on most of the Linux distributions and we can install the same with the help of the commands mentioned below.
sudo apt install unzip
sudo yum install unzip
unzip file.... | [
{
"code": null,
"e": 1170,
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"text": "Unzip is the Linux command utility that we will use to unzip all zipped files present in a Linux directory."
},
{
"code": null,
"e": 1325,
"s": 1170,
"text": "By default, the unzip utility is not present on most of the Linux distribu... |
How to create new alias with PowerShell? | Anyone can create a new alias which is a shortcut to another command. To create your own alias you need to use Set-Alias cmdlet. Here, we will create a new alias Edit, which will open a
Notepad.exe. First, we will check if Edit alias exists or not.
$Alias:Edit
As this is going to be a new Alias there will be no output ... | [
{
"code": null,
"e": 1311,
"s": 1062,
"text": "Anyone can create a new alias which is a shortcut to another command. To create your own alias you need to use Set-Alias cmdlet. Here, we will create a new alias Edit, which will open a\nNotepad.exe. First, we will check if Edit alias exists or not."
... |
Why Is Everyone at Kaggle Obsessed with Optuna For Hyperparameter Tuning? | by Bex T. | Towards Data Science | Turns out I have been living under a rock.
While every single MOOC taught me to use GridSearch for hyperparameter tuning, Kagglers have been using Optuna almost exclusively for 2 years. This even predates the time I started learning data science.
Kaggle community is known for its brutal competitiveness, and for a packa... | [
{
"code": null,
"e": 214,
"s": 171,
"text": "Turns out I have been living under a rock."
},
{
"code": null,
"e": 418,
"s": 214,
"text": "While every single MOOC taught me to use GridSearch for hyperparameter tuning, Kagglers have been using Optuna almost exclusively for 2 years. ... |
Supercharge Python’s Requests with Async IO & HTTPX | by Maulin Tolia | Towards Data Science | If you have some experience with Python, chances are good that you have used the Requests library at some point. It is a wonderful library for making HTTP requests and interacting with APIs.
The advantage of Requests is that it’s simple and syntactically sweet. The disadvantage is that it currently doesn’t work with As... | [
{
"code": null,
"e": 362,
"s": 171,
"text": "If you have some experience with Python, chances are good that you have used the Requests library at some point. It is a wonderful library for making HTTP requests and interacting with APIs."
},
{
"code": null,
"e": 569,
"s": 362,
"tex... |
How to convert lists to XML in Python? - GeeksforGeeks | 24 Jan, 2021
In this article, the task is to convert a given list to XML in Python. But first, let’s discuss what is an XML?
It could also be terminology that defines a gaggle of rules for encoding documents during a format that’s both human-readable and machine-readable. The design goals of XML specialize in simplicit... | [
{
"code": null,
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"text": "\n24 Jan, 2021"
},
{
"code": null,
"e": 24404,
"s": 24292,
"text": "In this article, the task is to convert a given list to XML in Python. But first, let’s discuss what is an XML?"
},
{
"code": null,
"e": 24730,
"s"... |
Extracting & Plotting Feature Names & Importance from Scikit-Learn Pipelines | by Kyle Gilde | Towards Data Science | If you have ever been tasked with productionalizing a machine learning model, you probably know that Scikit-Learn library offers one of the best ways — if not the best way — of creating production-quality machine learning workflows. The ecosystem’s Pipeline, ColumnTransformer, preprocessors, imputers & feature selectio... | [
{
"code": null,
"e": 571,
"s": 171,
"text": "If you have ever been tasked with productionalizing a machine learning model, you probably know that Scikit-Learn library offers one of the best ways — if not the best way — of creating production-quality machine learning workflows. The ecosystem’s Pipeli... |
C# program to find Intersection of two lists | To find intersection of two lists in C#, use the Intersect() method.
The following is our list 1.
List<int> list1 = new List<int>();
list1.Add(2);
list1.Add(3);
list1.Add(5);
list1.Add(7);
The following is our list 2.
List<int> list2 = new List<int>();
list2.Add(5);
list2.Add(4);
list2.Add(6);
list2.Add(8);
The followi... | [
{
"code": null,
"e": 1131,
"s": 1062,
"text": "To find intersection of two lists in C#, use the Intersect() method."
},
{
"code": null,
"e": 1160,
"s": 1131,
"text": "The following is our list 1."
},
{
"code": null,
"e": 1251,
"s": 1160,
"text": "List<int> lis... |
How to change the datatype of a column in an existing table using JDBC API? | You can change the datatype of a column in a table using the ALTER TABLE command.
ALTER TABLE Sales MODIFY COLUMN column_name column_new_datatuype
Assume we have a table named Sales in the database with 7 columns namely ProductName, CustomerName, DispatchDate, DeliveryTime, Price, Location and, ID with description as:
... | [
{
"code": null,
"e": 1144,
"s": 1062,
"text": "You can change the datatype of a column in a table using the ALTER TABLE command."
},
{
"code": null,
"e": 1209,
"s": 1144,
"text": "ALTER TABLE Sales MODIFY COLUMN column_name column_new_datatuype"
},
{
"code": null,
"e"... |
Truly Customizing Power BI with React, Angular, or any web framework | by Thiago Candido | Towards Data Science | With the growth of the amount of data available in organizations, presenting it in a clear and direct way is increasingly important. In this context, Power BI — Microsoft’s business analysis tool — has gained prominence.
Even counting on integrated components and navigation mechanisms, enough to meet most of the regula... | [
{
"code": null,
"e": 268,
"s": 47,
"text": "With the growth of the amount of data available in organizations, presenting it in a clear and direct way is increasingly important. In this context, Power BI — Microsoft’s business analysis tool — has gained prominence."
},
{
"code": null,
"e"... |
How to take input in Octave GNU? - GeeksforGeeks | 01 Aug, 2020
Octave is open-source, free available for many of the platforms. It is a high-level language. It comes up with a text interface along with an experimental graphical interface. It is also used for various Machine Learning algorithms for solving various numeric problems. You can say that it is similar to MAT... | [
{
"code": null,
"e": 24141,
"s": 24113,
"text": "\n01 Aug, 2020"
},
{
"code": null,
"e": 24476,
"s": 24141,
"text": "Octave is open-source, free available for many of the platforms. It is a high-level language. It comes up with a text interface along with an experimental graphica... |
Data Structures in C++ — Part 1. Implementing common data structures in... | by Vijini Mallawaarachchi | Towards Data Science | C++ is an extension of the C programming language which supports the creation of classes, hence known as “C with classes”. It is used to create high-performance applications and provides us with a high level of control over computing resources. In this article, I will present you the C++ implementations of 4 of the dat... | [
{
"code": null,
"e": 605,
"s": 172,
"text": "C++ is an extension of the C programming language which supports the creation of classes, hence known as “C with classes”. It is used to create high-performance applications and provides us with a high level of control over computing resources. In this ar... |
Spring Autowiring 'byName' | This mode specifies autowiring by property name. Spring container looks at the beans on which auto-wire attribute is set to byName in the XML configuration file. It then tries to match and wire its properties with the beans defined by the same names in the configuration file. If matches are found, it will inject those ... | [
{
"code": null,
"e": 2657,
"s": 2292,
"text": "This mode specifies autowiring by property name. Spring container looks at the beans on which auto-wire attribute is set to byName in the XML configuration file. It then tries to match and wire its properties with the beans defined by the same names in ... |
Z-Buffer or Depth-Buffer method in C++ | The z-buffer also known as depth-buffer is a method that is used for hidden surface detection.
For any picture that has objects and surfaces that are transparent. In this case, objects that are behind other objects are hidden. For proper visual of the image, we need to remove these hidden surfaces is required. The iden... | [
{
"code": null,
"e": 1157,
"s": 1062,
"text": "The z-buffer also known as depth-buffer is a method that is used for hidden surface detection."
},
{
"code": null,
"e": 1427,
"s": 1157,
"text": "For any picture that has objects and surfaces that are transparent. In this case, objec... |
Exception Handling in Kotlin with Examples - GeeksforGeeks | 16 Aug, 2020
Exceptions are the error which comes at the runtime and disrupts your flow of execution of the program. Basically exception is the unwanted event that occurs at runtime. The method by which we can handle this kind of error is called Exception Handling.
Checked Exception: Exceptions that occur at the compil... | [
{
"code": null,
"e": 24518,
"s": 24490,
"text": "\n16 Aug, 2020"
},
{
"code": null,
"e": 24771,
"s": 24518,
"text": "Exceptions are the error which comes at the runtime and disrupts your flow of execution of the program. Basically exception is the unwanted event that occurs at ru... |
fopen() function in PHP | The fopen() function opens a file or URL. If the function fails, it returns FALSE and an error on failure. Add an '@' in front of the function name to hide the error output.
fopen(file_path, mode, include_path, context)
file_path − The path of the file.
file_path − The path of the file.
mode − The type of access you re... | [
{
"code": null,
"e": 1236,
"s": 1062,
"text": "The fopen() function opens a file or URL. If the function fails, it returns FALSE and an error on failure. Add an '@' in front of the function name to hide the error output."
},
{
"code": null,
"e": 1282,
"s": 1236,
"text": "fopen(fi... |
Project specific array field in a MongoDB collection? | Let us first create a collection with documents −
> db.projectionAnElementDemo.insertOne(
... {
... "CustomerId":100,
... "CustomerDetails": [
... {
... "CustomerName": "Chris",
... "CustomerCountryName": "US"
... },
... {
... "CustomerName":... | [
{
"code": null,
"e": 1112,
"s": 1062,
"text": "Let us first create a collection with documents −"
},
{
"code": null,
"e": 1565,
"s": 1112,
"text": "> db.projectionAnElementDemo.insertOne(\n... {\n... \"CustomerId\":100,\n... \"CustomerDetails\": [\n... {\n... |
How to I connect to wifi network on Android programmatically? | This example demonstrates how do I connect wifi network in Android programatically.
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="utf-8"?>
<Re... | [
{
"code": null,
"e": 1146,
"s": 1062,
"text": "This example demonstrates how do I connect wifi network in Android programatically."
},
{
"code": null,
"e": 1275,
"s": 1146,
"text": "Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required de... |
Get first and last elements from Array and Vector in CPP - GeeksforGeeks | 10 Nov, 2018
Given an array, find first and last elements of it.
Input: {4, 5, 7, 13, 25, 65, 98}
Output: First element: 4
Last element: 98
In C++, we can use sizeof operator to find number of elements in an array.
// C++ Program to print first and last element in an array#include <iostream>using namespace std;int mai... | [
{
"code": null,
"e": 24098,
"s": 24070,
"text": "\n10 Nov, 2018"
},
{
"code": null,
"e": 24150,
"s": 24098,
"text": "Given an array, find first and last elements of it."
},
{
"code": null,
"e": 24226,
"s": 24150,
"text": "Input: {4, 5, 7, 13, 25, 65, 98}\nOutp... |
Advantages and Disadvantages of Array in C - GeeksforGeeks | 29 Oct, 2020
An array is a collection of similar types of elements. For example, an integer array holds the elements of int types while a character array holds the elements of char types. Below is the representation of the array:
Though, array got its own set of advantages and disadvantages.
Below are some advantages o... | [
{
"code": null,
"e": 24822,
"s": 24794,
"text": "\n29 Oct, 2020"
},
{
"code": null,
"e": 25039,
"s": 24822,
"text": "An array is a collection of similar types of elements. For example, an integer array holds the elements of int types while a character array holds the elements of ... |
Display auto increment user id sequence number to begin from 001 in MySQL? | For this, use ZEROFILL and alter the table to begin from the same sequence −
alter table yourTableName
change yourColumnName yourColumnName int(3) UNSIGNED ZEROFILL NOT NULL AUTO_INCREMENT PRIMARY KEY;
To understand the above syntax, let us first create a table −
mysql> create table DemoTable1958
(
UserId int,... | [
{
"code": null,
"e": 1139,
"s": 1062,
"text": "For this, use ZEROFILL and alter the table to begin from the same sequence −"
},
{
"code": null,
"e": 1267,
"s": 1139,
"text": "alter table yourTableName\n change yourColumnName yourColumnName int(3) UNSIGNED ZEROFILL NOT NULL AUTO... |
Ngx-Bootstrap - Buttons | ngx-bootstrap buttons have two specific directives which makes a group of buttons to behave as checkbox or radio buttons or hybrid where a radio button can be unchecked.
Add checkbox functionality to any element.
[btnCheckbox]
[btnCheckbox]
btnCheckboxFalse − boolean, Falsy value, will be set to ngModel, default: false... | [
{
"code": null,
"e": 2270,
"s": 2100,
"text": "ngx-bootstrap buttons have two specific directives which makes a group of buttons to behave as checkbox or radio buttons or hybrid where a radio button can be unchecked."
},
{
"code": null,
"e": 2313,
"s": 2270,
"text": "Add checkbox... |
Merge two sorted arrays in Python using heapq - GeeksforGeeks | 23 Nov, 2020
Given two sorted arrays, the task is to merge them in a sorted manner.
Examples:
Input : arr1 = [1, 3, 4, 5]
arr2 = [2, 4, 6, 8]
Output : arr3 = [1, 2, 3, 4, 4, 5, 6, 8]
Input : arr1 = [5, 8, 9]
arr2 = [4, 7, 8]
Output : arr3 = [4, 5, 7, 8, 8, 9]
This problem has existing solution... | [
{
"code": null,
"e": 24429,
"s": 24401,
"text": "\n23 Nov, 2020"
},
{
"code": null,
"e": 24500,
"s": 24429,
"text": "Given two sorted arrays, the task is to merge them in a sorted manner."
},
{
"code": null,
"e": 24510,
"s": 24500,
"text": "Examples:"
},
{... |
Visualization of Quick sort using Matplotlib - GeeksforGeeks | 02 Sep, 2021
Visualizing algorithms makes it easier to understand them by analyzing and comparing the number of operations that took place to compare and swap the elements. For this we will use matplotlib, to plot bar graphs to represent the elements of the array,
Approach :
We will generate an array with random elem... | [
{
"code": null,
"e": 29911,
"s": 29883,
"text": "\n02 Sep, 2021"
},
{
"code": null,
"e": 30165,
"s": 29911,
"text": "Visualizing algorithms makes it easier to understand them by analyzing and comparing the number of operations that took place to compare and swap the elements. For... |
exec() in Python | Exec function can dynamically execute code of python programs. The code can be passed in as string or object code to this function. The object code is executed as is while the string is first parsed and checked for any syntax error. If no syntax error, then the parsed string is executed as a python statement.
exec(obje... | [
{
"code": null,
"e": 1373,
"s": 1062,
"text": "Exec function can dynamically execute code of python programs. The code can be passed in as string or object code to this function. The object code is executed as is while the string is first parsed and checked for any syntax error. If no syntax error, ... |
D3.js bezierCurveTo() Function - GeeksforGeeks | 07 Aug, 2020
The d3.bezierCurveTo() function in d3.js is used to draw the cubic-bezier segment to a certain point from the current given point via certain control points.
Syntax:
path.bezierCurveTo(cpx1, cpy1, cpx2, cpy2, x, y);
Parameters: This function takes the following parameters.
cpx1: It is the x1-coordinate of ... | [
{
"code": null,
"e": 24364,
"s": 24336,
"text": "\n07 Aug, 2020"
},
{
"code": null,
"e": 24522,
"s": 24364,
"text": "The d3.bezierCurveTo() function in d3.js is used to draw the cubic-bezier segment to a certain point from the current given point via certain control points."
},... |
Rearrange characters to form palindrome if possible - GeeksforGeeks | 02 Mar, 2022
Given a string, convert the string to palindrome without any modifications like adding a character, removing a character, replacing a character etc.
Examples:
Input : "mdaam"
Output : "madam" or "amdma"
Input : "abb"
Output : "bab"
Input : "geeksforgeeks"
Output : "No Palindrome"
1. Count occurrences o... | [
{
"code": null,
"e": 24998,
"s": 24970,
"text": "\n02 Mar, 2022"
},
{
"code": null,
"e": 25148,
"s": 24998,
"text": "Given a string, convert the string to palindrome without any modifications like adding a character, removing a character, replacing a character etc. "
},
{
... |
Sentinel Linear Search - GeeksforGeeks | 04 Aug, 2021
Sentinel Linear Search as the name suggests is a type of Linear Search where the number of comparisons is reduced as compared to a traditional linear search. When a linear search is performed on an array of size N then in the worst case a total of N comparisons are made when the element to be searched is c... | [
{
"code": null,
"e": 25941,
"s": 25913,
"text": "\n04 Aug, 2021"
},
{
"code": null,
"e": 27016,
"s": 25941,
"text": "Sentinel Linear Search as the name suggests is a type of Linear Search where the number of comparisons is reduced as compared to a traditional linear search. When ... |
HTML | type Attribute - GeeksforGeeks | 09 Dec, 2021
The HTML <input> type Attribute is used to specify the type of <input> element to display. The default type of <input> type attribute is text.Syntax:
<input type="value">
Attribute Values:
button: It is used to define a clickable Button in a Document. It is mostly used with the JavaScript to activate t... | [
{
"code": null,
"e": 26139,
"s": 26111,
"text": "\n09 Dec, 2021"
},
{
"code": null,
"e": 26291,
"s": 26139,
"text": "The HTML <input> type Attribute is used to specify the type of <input> element to display. The default type of <input> type attribute is text.Syntax: "
},
{
... |
How to Find a Sublist in a List in Java? - GeeksforGeeks | 22 Oct, 2020
List in Java contains index-based methods. This enables us to maintain the order collection. So this enables us to search, insert, delete, and even update the elements. This enables us to store multiple copies of the same element already existing on our list. Also, in addition, null elements are allowed to... | [
{
"code": null,
"e": 25250,
"s": 25222,
"text": "\n22 Oct, 2020"
},
{
"code": null,
"e": 25581,
"s": 25250,
"text": "List in Java contains index-based methods. This enables us to maintain the order collection. So this enables us to search, insert, delete, and even update the elem... |
Bin Size in Matplotlib Histogram - GeeksforGeeks | 03 Jan, 2021
Prerequisites: Matplotlib
A histogram is a graphical representation of the distribution of data given by the user. Its appearance is similar to Bar-Graph except it is continuous.
The towers or bars of a histogram are called bins. The height of each bin shows how many values from that data fall into that ra... | [
{
"code": null,
"e": 31547,
"s": 31519,
"text": "\n03 Jan, 2021"
},
{
"code": null,
"e": 31573,
"s": 31547,
"text": "Prerequisites: Matplotlib"
},
{
"code": null,
"e": 31726,
"s": 31573,
"text": "A histogram is a graphical representation of the distribution of... |
Introduction to Natural Language Processing - GeeksforGeeks | 16 Nov, 2018
The essence of Natural Language Processing lies in making computers understand the natural language. That’s not an easy task though. Computers can understand the structured form of data like spreadsheets and the tables in the database, but human languages, texts, and voices form an unstructured category of... | [
{
"code": null,
"e": 25689,
"s": 25661,
"text": "\n16 Nov, 2018"
},
{
"code": null,
"e": 26119,
"s": 25689,
"text": "The essence of Natural Language Processing lies in making computers understand the natural language. That’s not an easy task though. Computers can understand the s... |
JavaScript string.replace() Method - GeeksforGeeks | 06 Oct, 2021
Below is the example of the string.replace() Method.
Example:
javascript
<script> var string = 'GeeksForGeeks'; var newstring = string.replace(/GeeksForGeeks/, 'GfG'); document.write(newstring);</script>
Output:
GfG
The string.replace() is an inbuilt method in JavaScript which is used to re... | [
{
"code": null,
"e": 26296,
"s": 26268,
"text": "\n06 Oct, 2021"
},
{
"code": null,
"e": 26351,
"s": 26296,
"text": "Below is the example of the string.replace() Method. "
},
{
"code": null,
"e": 26362,
"s": 26351,
"text": "Example: "
},
{
"code": nu... |
How to get keyboard input in PyGame ? - GeeksforGeeks | 30 Aug, 2021
While using pygame module of Python, we sometimes need to use the keyboard input for various operations such as moving a character in a certain direction. To achieve this, we have to see all the events happening. Pygame keeps track of events that occur, which we can see with the events.get() function. In t... | [
{
"code": null,
"e": 25537,
"s": 25509,
"text": "\n30 Aug, 2021"
},
{
"code": null,
"e": 25939,
"s": 25537,
"text": "While using pygame module of Python, we sometimes need to use the keyboard input for various operations such as moving a character in a certain direction. To achie... |
Scala List size() method with example - GeeksforGeeks | 26 Jul, 2019
The size() method is utilized to find the number of elements in the stated list.
Method Definition: def size(): Int
Return Type: It returns the number of elements in the stated list.
Example #1:
// Scala program of size()// method // Creating objectobject GfG{ // Main method def main(args:Array[S... | [
{
"code": null,
"e": 25167,
"s": 25139,
"text": "\n26 Jul, 2019"
},
{
"code": null,
"e": 25248,
"s": 25167,
"text": "The size() method is utilized to find the number of elements in the stated list."
},
{
"code": null,
"e": 25283,
"s": 25248,
"text": "Method De... |
How to Install Katoolin on Linux Mint? - GeeksforGeeks | 06 Jun, 2019
When the question comes which Linux Distro is best for ethical hacking then this becomes typical to choose with. Everyone likes the different environment, looks and feel. At last, they find that there is no perfect Distro. There is one way that we can add all Kali Linux Hacking tools in any other Linux Deb... | [
{
"code": null,
"e": 25651,
"s": 25623,
"text": "\n06 Jun, 2019"
},
{
"code": null,
"e": 26110,
"s": 25651,
"text": "When the question comes which Linux Distro is best for ethical hacking then this becomes typical to choose with. Everyone likes the different environment, looks an... |
Hello World in R Programming - GeeksforGeeks | 22 Jul, 2021
When we start to learn any programming languages we do follow a tradition to begin HelloWorld as our first basic program. Here we are going to learn that tradition. An interesting thing about R programming is that we can get our things done with very little code.
Before we start to learn to code, let’s see... | [
{
"code": null,
"e": 30289,
"s": 30261,
"text": "\n22 Jul, 2021"
},
{
"code": null,
"e": 30553,
"s": 30289,
"text": "When we start to learn any programming languages we do follow a tradition to begin HelloWorld as our first basic program. Here we are going to learn that tradition... |
Union of two arrays | Practice | GeeksforGeeks | Given two arrays a[] and b[] of size n and m respectively. The task is to find union between these two arrays.
Union of the two arrays can be defined as the set containing distinct elements from both the arrays. If there are repetitions, then only one occurrence of element should be printed in the union.
Example 1:
In... | [
{
"code": null,
"e": 350,
"s": 238,
"text": "Given two arrays a[] and b[] of size n and m respectively. The task is to find union between these two arrays. "
},
{
"code": null,
"e": 545,
"s": 350,
"text": "Union of the two arrays can be defined as the set containing distinct elem... |
What is the RemoveAt method in C# lists? | The RemoveAt() method in C# is used to remove an element in a list at a position you set.
Firstly, set elements in the list −
var subjects = new List();
subjects.Add("Physics");
subjects.Add("Chemistry");
subjects.Add("Biology");
subjects.Add("Science");
To remove an element, set the index from where you want to elimin... | [
{
"code": null,
"e": 1152,
"s": 1062,
"text": "The RemoveAt() method in C# is used to remove an element in a list at a position you set."
},
{
"code": null,
"e": 1188,
"s": 1152,
"text": "Firstly, set elements in the list −"
},
{
"code": null,
"e": 1317,
"s": 1188... |
Minimum number of days required to complete the work - GeeksforGeeks | 03 Jun, 2021
Given N works numbered from 1 to N. Given two arrays, D1[] and D2[] of N elements each. Also, each work number W(i) is assigned days, D1[i] and D2[i] (Such that, D2[i] < D1[i]) either of which can be completed. Also, it is mentioned that each work has to be completed according to the non-decreasing date of... | [
{
"code": null,
"e": 24657,
"s": 24629,
"text": "\n03 Jun, 2021"
},
{
"code": null,
"e": 25098,
"s": 24657,
"text": "Given N works numbered from 1 to N. Given two arrays, D1[] and D2[] of N elements each. Also, each work number W(i) is assigned days, D1[i] and D2[i] (Such that, D... |
Imbalanced Classes: Part 2. Recently, I wrote this post about... | by Becca R | Towards Data Science | Recently, I wrote this post about imbalanced class sizes in classification models might lead to overestimation of a classification model’s performance. The post discussed a classification project I was developing using Airbnb first user booking data from Kaggle. The objective of the project was to predict whether a fir... | [
{
"code": null,
"e": 752,
"s": 172,
"text": "Recently, I wrote this post about imbalanced class sizes in classification models might lead to overestimation of a classification model’s performance. The post discussed a classification project I was developing using Airbnb first user booking data from ... |
XQuery - distinct-values Function | The distinct-values function is used to get the sequence containing unique items present in a given sequence.
distinct-values($seq as item()*)
$seq − provided sequence. A sequence can contain 0 or more items.
$seq − provided sequence. A sequence can contain 0 or more items.
let $items := (1,2,4,4,5,5)
let $unique-items... | [
{
"code": null,
"e": 1982,
"s": 1872,
"text": "The distinct-values function is used to get the sequence containing unique items present in a given sequence."
},
{
"code": null,
"e": 2015,
"s": 1982,
"text": "distinct-values($seq as item()*)"
},
{
"code": null,
"e": 20... |
Weight sum of a nested array in JavaScript | We are required to write a JavaScript function that takes in a nested array, arr (nested up to any
level) as the only argument.
The function should calculate the weighted sum of the nested array and return that sum.
For calculating nested sum, we multiply a specific element with its level of nesting and add
throughout ... | [
{
"code": null,
"e": 1190,
"s": 1062,
"text": "We are required to write a JavaScript function that takes in a nested array, arr (nested up to any\nlevel) as the only argument."
},
{
"code": null,
"e": 1278,
"s": 1190,
"text": "The function should calculate the weighted sum of the... |
How to implement a Singleton design pattern in C#? | Singleton Pattern belongs to Creational type pattern
Singleton design pattern is used when we need to ensure that only one object of a particular class is Instantiated. That single instance created is responsible to coordinate actions across the application.
As part of the Implementation guidelines we need to ensure th... | [
{
"code": null,
"e": 1115,
"s": 1062,
"text": "Singleton Pattern belongs to Creational type pattern"
},
{
"code": null,
"e": 1321,
"s": 1115,
"text": "Singleton design pattern is used when we need to ensure that only one object of a particular class is Instantiated. That single i... |
Python 3 - os.popen() Method | The method popen() opens a pipe to or from command.The return value is an open file object connected to the pipe, which can be read or written depending on whether mode is 'r' (default) or 'w'.The bufsize argument has the same meaning as in open() function.
Following is the syntax for popen() method −
os.popen(command[... | [
{
"code": null,
"e": 2598,
"s": 2340,
"text": "The method popen() opens a pipe to or from command.The return value is an open file object connected to the pipe, which can be read or written depending on whether mode is 'r' (default) or 'w'.The bufsize argument has the same meaning as in open() funct... |
Apache Flink - Table API and SQL | Table API is a relational API with SQL like expression language. This API can do both batch and stream processing. It can be embedded with Java and Scala Dataset and Datastream APIs. You can create tables from existing Datasets and Datastreams or from external data sources. Through this relational API, you can perform ... | [
{
"code": null,
"e": 2524,
"s": 2069,
"text": "Table API is a relational API with SQL like expression language. This API can do both batch and stream processing. It can be embedded with Java and Scala Dataset and Datastream APIs. You can create tables from existing Datasets and Datastreams or from e... |
How to change the button color after clicking it using AngularJS ? - GeeksforGeeks | 14 Oct, 2020
Created a HTML button and the task is to change the background color of the button when pressing it with the help of AngularJS.
Approach: In this approach, we will try to change the class or id of the button, and the CSS of those classes/IDs will change the background color of the button.
Example 1: In thi... | [
{
"code": null,
"e": 26464,
"s": 26436,
"text": "\n14 Oct, 2020"
},
{
"code": null,
"e": 26592,
"s": 26464,
"text": "Created a HTML button and the task is to change the background color of the button when pressing it with the help of AngularJS."
},
{
"code": null,
"e"... |
CALL Instructions and Stack in AVR Microcontroller - GeeksforGeeks | 17 Jan, 2022
CALL is a control transfer instruction that is used to call a particular subroutine. A subroutine is a block of instructions that need to be performed frequently.
In AVR, there are 4 instructions for the call subroutine as following.
CALL (call subroutine)RCALL (relative call subroutine)ICALL (indirect cal... | [
{
"code": null,
"e": 26135,
"s": 26107,
"text": "\n17 Jan, 2022"
},
{
"code": null,
"e": 26298,
"s": 26135,
"text": "CALL is a control transfer instruction that is used to call a particular subroutine. A subroutine is a block of instructions that need to be performed frequently."... |
How to Collapse Toolbar Layout in Android? - GeeksforGeeks | 30 Dec, 2021
In this article, we are going to create the CollapsingToolbar app that is fascinating and much useful. CollapsingToolbarLayout gives the facility of adjusting the size of toolbar title text when it is expanded or contracted. A sample GIF is given below to get an idea about how CollapsingToolbarLayout looks... | [
{
"code": null,
"e": 26407,
"s": 26379,
"text": "\n30 Dec, 2021"
},
{
"code": null,
"e": 26722,
"s": 26407,
"text": "In this article, we are going to create the CollapsingToolbar app that is fascinating and much useful. CollapsingToolbarLayout gives the facility of adjusting the ... |
How to create a bouncing bubble effect using CSS ? - GeeksforGeeks | 30 Jun, 2020
One simple way of making a website more dynamic and attractive is to add some animations to it. One such animation is the bouncing bubble effect.
Approach: The basic idea is to create a section using <lspan> element, give it a round shape then by using the CSS animation property translateY the bubble can b... | [
{
"code": null,
"e": 25212,
"s": 25184,
"text": "\n30 Jun, 2020"
},
{
"code": null,
"e": 25358,
"s": 25212,
"text": "One simple way of making a website more dynamic and attractive is to add some animations to it. One such animation is the bouncing bubble effect."
},
{
"co... |
Prime Number | Practice | GeeksforGeeks | For a given number N check if it is prime or not. A prime number is a number which is only divisible by 1 and itself.
Example 1:
Input:
N = 5
Output:
1
Explanation:
5 has 2 factors 1 and 5 only.
Example 2:
Input:
N = 25
Output:
0
Explanation:
25 has 3 factors 1, 5, 25
Your Task:
You don't need to read input or prin... | [
{
"code": null,
"e": 358,
"s": 238,
"text": "For a given number N check if it is prime or not. A prime number is a number which is only divisible by 1 and itself.\n "
},
{
"code": null,
"e": 369,
"s": 358,
"text": "Example 1:"
},
{
"code": null,
"e": 435,
"s": 369... |
Reading Environment Variables From Node.js - GeeksforGeeks | 12 Oct, 2021
Environment Variable: The two fundamental concepts of any programming language are variables and constants. As we know that constants and variables both represent the unique memory locations that contain data the program uses in its calculations.
The variable which exists outside your code is a part of yo... | [
{
"code": null,
"e": 38611,
"s": 38583,
"text": "\n12 Oct, 2021"
},
{
"code": null,
"e": 38859,
"s": 38611,
"text": "Environment Variable: The two fundamental concepts of any programming language are variables and constants. As we know that constants and variables both represent... |
Java - Packages | Packages are used in Java in order to prevent naming conflicts, to control access, to make searching/locating and usage of classes, interfaces, enumerations and annotations easier, etc.
A Package can be defined as a grouping of related types (classes, interfaces, enumerations and annotations ) providing access protecti... | [
{
"code": null,
"e": 2563,
"s": 2377,
"text": "Packages are used in Java in order to prevent naming conflicts, to control access, to make searching/locating and usage of classes, interfaces, enumerations and annotations easier, etc."
},
{
"code": null,
"e": 2726,
"s": 2563,
"text... |
It’s official: time doesn’t exist | by Gonzalo Ferreiro Volpi | Towards Data Science | [IMPORTANT]: some people left the article thinking it was about phyisics. If you’re interested only in the ML part about how to treat time features, feel free to skip over the first part of the story and go straight to ‘Dealing with time features in our dataset’.
In December my girlfriend and I went back to Uruguay and... | [
{
"code": null,
"e": 436,
"s": 172,
"text": "[IMPORTANT]: some people left the article thinking it was about phyisics. If you’re interested only in the ML part about how to treat time features, feel free to skip over the first part of the story and go straight to ‘Dealing with time features in our d... |
Bootstrap .tooltip("destroy") method | Use the tooltip(“destroy”) method in Bootstrap to detroy the tooltip −
$(".btn-default").click(function(){
$("[data-toggle='tooltip']").tooltip('destroy');
});
The following example has two buttons, one for “Show Tooltip” and another for “Destroy Tooltip” −
$(".btn-primary").click(function(){
$("[data-toggle='toolt... | [
{
"code": null,
"e": 1133,
"s": 1062,
"text": "Use the tooltip(“destroy”) method in Bootstrap to detroy the tooltip −"
},
{
"code": null,
"e": 1224,
"s": 1133,
"text": "$(\".btn-default\").click(function(){\n $(\"[data-toggle='tooltip']\").tooltip('destroy');\n});"
},
{
... |
Tune Your Scikit-learn Model Using Evolutionary Algorithms | by Rodrigo Arenas | Towards Data Science | Hyperparameter tuning is an essential part of the machine learning pipeline—most common implementations use a grid search (random or not) to choose between a set of combinations.
This article will use evolutionary algorithms with the python package sklearn-genetic-opt to find the set of parameters that optimizes our de... | [
{
"code": null,
"e": 351,
"s": 172,
"text": "Hyperparameter tuning is an essential part of the machine learning pipeline—most common implementations use a grid search (random or not) to choose between a set of combinations."
},
{
"code": null,
"e": 596,
"s": 351,
"text": "This ar... |
Count of larger elements on right side of each element in an array - GeeksforGeeks | 17 Dec, 2021
Given an array arr[] consisting of N integers, the task is to count the number of greater elements on the right side of each array element.
Examples:
Input: arr[] = {3, 7, 1, 5, 9, 2}Output: {3, 1, 3, 1, 0, 0}Explanation:For arr[0], the elements greater than it on the right are {7, 5, 9}.For arr[1], the on... | [
{
"code": null,
"e": 24429,
"s": 24401,
"text": "\n17 Dec, 2021"
},
{
"code": null,
"e": 24569,
"s": 24429,
"text": "Given an array arr[] consisting of N integers, the task is to count the number of greater elements on the right side of each array element."
},
{
"code": n... |
Bernoulli Distribution with Python from Scratch | by Deniz Ağırdan | Towards Data Science | To solve a problem, the common ready libraries are used but we don’t search the function how to work and how to serve our purpose. More importantly, if we need to modify a function, we don’t know how to do that.
So, the purpose of this article is how to code bernoulli probability distributions and their some properties... | [
{
"code": null,
"e": 384,
"s": 172,
"text": "To solve a problem, the common ready libraries are used but we don’t search the function how to work and how to serve our purpose. More importantly, if we need to modify a function, we don’t know how to do that."
},
{
"code": null,
"e": 594,
... |
Multi-class Classification: Extracting Performance Metrics From The Confusion Matrix | by Serafeim Loukas | Towards Data Science | In one of my previous posts, “ROC Curve explained using a COVID-19 hypothetical example: Binary & Multi-Class Classification tutorial”, I clearly explained what a ROC curve is and how it is connected to the famous Confusion Matrix. If you are not familiar with the term Confusion Matrix and True Positives, True Negative... | [
{
"code": null,
"e": 610,
"s": 172,
"text": "In one of my previous posts, “ROC Curve explained using a COVID-19 hypothetical example: Binary & Multi-Class Classification tutorial”, I clearly explained what a ROC curve is and how it is connected to the famous Confusion Matrix. If you are not familiar... |
How can we use MySQL SELECT without FROM clause? | FROM clause after SELECT shows the references to a table. But if there is no reference to any table then we can use SELECT without the FROM clause. In other words, we can say that SELECT can be used to retrieve rows computed without reference to any table. Consider the following statements −
mysql> Select concat_ws(" "... | [
{
"code": null,
"e": 1355,
"s": 1062,
"text": "FROM clause after SELECT shows the references to a table. But if there is no reference to any table then we can use SELECT without the FROM clause. In other words, we can say that SELECT can be used to retrieve rows computed without reference to any tab... |
Relative Positioning with CSS | Relative positioning changes the position of the HTML element relative to where it normally appears. So "left:20" adds 20 pixels to the element's LEFT position.
You can use two values top and left along with the position property to move an HTML element anywhere in the HTML document.
Move Left - Use a negative value f... | [
{
"code": null,
"e": 1223,
"s": 1062,
"text": "Relative positioning changes the position of the HTML element relative to where it normally appears. So \"left:20\" adds 20 pixels to the element's LEFT position."
},
{
"code": null,
"e": 1347,
"s": 1223,
"text": "You can use two val... |
Summarising Data With SQL. In our previous look at SQL to analyse... | by Robert de Graaf | Towards Data Science | SQL can be used for more than simply transferring data from a database to your modelling environment. Learn more about how to analyse your data in situ to decide what is most useful
In our previous look at SQL to analyse data from a true data science perspective, we explored a little of how we can use SQL to understand... | [
{
"code": null,
"e": 354,
"s": 172,
"text": "SQL can be used for more than simply transferring data from a database to your modelling environment. Learn more about how to analyse your data in situ to decide what is most useful"
},
{
"code": null,
"e": 806,
"s": 354,
"text": "In o... |
Extract maximum numeric value from a given string | Set 1 (General approach) - GeeksforGeeks | 14 May, 2021
Given an alphanumeric string, extract maximum numeric value from that string. Alphabets will only be in lower case. One approach to solving the problem is discussed here, other using Regular expressions is given in Set 2 Examples:
Input : 100klh564abc365bg
Output : 564
Maximum numeric value among 100, 56... | [
{
"code": null,
"e": 25029,
"s": 25001,
"text": "\n14 May, 2021"
},
{
"code": null,
"e": 25262,
"s": 25029,
"text": "Given an alphanumeric string, extract maximum numeric value from that string. Alphabets will only be in lower case. One approach to solving the problem is discusse... |
Create a new user with password in MySQL 8? | You need to use CREATE command to create a new user with password in MySQL 8. Let us check the version
mysql> select version();
+-----------+
| version() |
+-----------+
| 8.0.12 |
+-----------+
1 row in set (0.14 sec)
The syntax is as follows to create a new user with password
CREATE USER 'yourUserName'@'localhost'... | [
{
"code": null,
"e": 1165,
"s": 1062,
"text": "You need to use CREATE command to create a new user with password in MySQL 8. Let us check the version"
},
{
"code": null,
"e": 1284,
"s": 1165,
"text": "mysql> select version();\n+-----------+\n| version() |\n+-----------+\n| 8.0.12... |
Exception Hierarchy in case of multiple catch blocks. | An exception is an issue (run time error) that occurred during the execution of a program. When an exception occurred the program gets terminated abruptly and, the code past the line that generated the exception never gets executed.
Whenever we have a code that may generate more than one exception and if you need to ha... | [
{
"code": null,
"e": 1295,
"s": 1062,
"text": "An exception is an issue (run time error) that occurred during the execution of a program. When an exception occurred the program gets terminated abruptly and, the code past the line that generated the exception never gets executed."
},
{
"code"... |
Perl - Special Variables | There are some variables which have a predefined and special meaning in Perl. They are the variables that use punctuation characters after the usual variable indicator ($, @, or %), such as $_ ( explained below ).
Most of the special variables have an english like long name, e.g., Operating System Error variable $! can... | [
{
"code": null,
"e": 2434,
"s": 2220,
"text": "There are some variables which have a predefined and special meaning in Perl. They are the variables that use punctuation characters after the usual variable indicator ($, @, or %), such as $_ ( explained below )."
},
{
"code": null,
"e": 27... |
WebGL - Html5 Canvas Overview | To create graphical applications on the web, HTML-5 provides a rich set of features such as 2D Canvas, WebGL, SVG, 3D CSS transforms, and SMIL. To write WebGL applications, we use the existing canvas element of HTML-5. This chapter provides an overview of the HTML-5 2D canvas element.
HTML-5 <canvas> provides an easy a... | [
{
"code": null,
"e": 2333,
"s": 2047,
"text": "To create graphical applications on the web, HTML-5 provides a rich set of features such as 2D Canvas, WebGL, SVG, 3D CSS transforms, and SMIL. To write WebGL applications, we use the existing canvas element of HTML-5. This chapter provides an overview ... |
Hosting your ML model on AWS Lambdas + API Gateway Part 1 | by Evan Miller | Towards Data Science | But now someone wants to use your model. That’s great news ain’t it?
It definitely is, but a whole new problem comes up. You’ve gotta put it somewhere and make it available to other people in the business.
I’ll show you how to do it easily and cheaply on AWS.
For my other articles on Model Deployment check out the link... | [
{
"code": null,
"e": 240,
"s": 171,
"text": "But now someone wants to use your model. That’s great news ain’t it?"
},
{
"code": null,
"e": 377,
"s": 240,
"text": "It definitely is, but a whole new problem comes up. You’ve gotta put it somewhere and make it available to other peop... |
MapStruct - Mapping Direct Fields | MapStruct handles direct fields mapping easily. For example, a Student with section as private property and StudentEntity with section as public property. To have both getter/setter mapping, a property should be public. In case of public final, only getter method will be present for mapping.
Now create a mapper interfa... | [
{
"code": null,
"e": 2553,
"s": 2260,
"text": "MapStruct handles direct fields mapping easily. For example, a Student with section as private property and StudentEntity with section as public property. To have both getter/setter mapping, a property should be public. In case of public final, only get... |
C++ STL | Set 4 (stack) | Practice | GeeksforGeeks | Implement different operations on a stack s .
Input:
The first line of input contains an integer T denoting the no of test cases . Then T test cases follow. The first line of input contains an integer Q denoting the no of queries . Then in the next line are Q space separated queries .
A query can be of four types
1. ... | [
{
"code": null,
"e": 937,
"s": 226,
"text": "Implement different operations on a stack s .\n\nInput:\nThe first line of input contains an integer T denoting the no of test cases . Then T test cases follow. The first line of input contains an integer Q denoting the no of queries . Then in the next li... |
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