title stringlengths 3 221 | text stringlengths 17 477k | parsed listlengths 0 3.17k |
|---|---|---|
PyQt5 QCalendarWidget - Killing the timer - GeeksforGeeks | 26 Jan, 2022
In this article we will see how we can kill the timer of the QCalendarWidget. In order to start the timer we use startTimer method, this method calls the timerEvent after the certain interval is passed. It starts a timer and returns a timer identifier, or returns zero if it could not start a timer.
In orde... | [
{
"code": null,
"e": 24494,
"s": 24466,
"text": "\n26 Jan, 2022"
},
{
"code": null,
"e": 24794,
"s": 24494,
"text": "In this article we will see how we can kill the timer of the QCalendarWidget. In order to start the timer we use startTimer method, this method calls the timerEven... |
Go - Range | The range keyword is used in for loop to iterate over items of an array, slice, channel or map. With array and slices, it returns the index of the item as integer. With maps, it returns the key of the next key-value pair. Range either returns one value or two. If only one value is used on the left of a range expression... | [
{
"code": null,
"e": 2303,
"s": 1937,
"text": "The range keyword is used in for loop to iterate over items of an array, slice, channel or map. With array and slices, it returns the index of the item as integer. With maps, it returns the key of the next key-value pair. Range either returns one value ... |
How to efficiently implement k Queues in a single array? | 23 Jun, 2022
We have discussed efficient implementation of k stack in an array. In this post, same for queue is discussed. Following is the detailed problem statement.
Create a data structure kQueues that represents k queues. Implementation of kQueues should use only one array, i.e., k queues should use the same array ... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n23 Jun, 2022"
},
{
"code": null,
"e": 207,
"s": 52,
"text": "We have discussed efficient implementation of k stack in an array. In this post, same for queue is discussed. Following is the detailed problem statement."
},
{
"code... |
Split String with Dot (.) in Java | Let’s say the following is our string.
String str = "This is demo text.This is sample text!";
To split a string with dot, use the split() method in Java.
str.split("[.]", 0);
The following is the complete example.
Live Demo
public class Demo {
public static void main(String[] args) {
String str = "This is d... | [
{
"code": null,
"e": 1226,
"s": 1187,
"text": "Let’s say the following is our string."
},
{
"code": null,
"e": 1281,
"s": 1226,
"text": "String str = \"This is demo text.This is sample text!\";"
},
{
"code": null,
"e": 1341,
"s": 1281,
"text": "To split a stri... |
How to convert Float to Int in Python? | 18 Aug, 2020
Converting a float value to an int is done by Type conversion, which is an explicit method of converting an operand to a specific type. However, it is to be noted that such type of conversion may tend to be a lossy one (loss of data). Converting an int value like 2 to floating-point will result in 2.0, suc... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n18 Aug, 2020"
},
{
"code": null,
"e": 495,
"s": 28,
"text": "Converting a float value to an int is done by Type conversion, which is an explicit method of converting an operand to a specific type. However, it is to be noted that such ty... |
Search Pattern (Rabin-Karp Algorithm) | Practice | GeeksforGeeks | Given two strings, one is a text string and other is a pattern string. The task is to print the indexes of all the occurences of pattern string in the text string. For printing, Starting Index of a string should be taken as 1.
Example 1:
Input:
S = "batmanandrobinarebat", pat = "bat"
Output: 1 18
Explanation: The strin... | [
{
"code": null,
"e": 465,
"s": 238,
"text": "Given two strings, one is a text string and other is a pattern string. The task is to print the indexes of all the occurences of pattern string in the text string. For printing, Starting Index of a string should be taken as 1."
},
{
"code": null,
... |
Arrays in Java - GeeksforGeeks | 31 Mar, 2022
An array in Java is a group of like-typed variables referred to by a common name. Arrays in Java work differently than they do in C/C++. Following are some important points about Java arrays.
In Java, all arrays are dynamically allocated. (discussed below)
Since arrays are objects in Java, we can find the... | [
{
"code": null,
"e": 37678,
"s": 37650,
"text": "\n31 Mar, 2022"
},
{
"code": null,
"e": 37871,
"s": 37678,
"text": "An array in Java is a group of like-typed variables referred to by a common name. Arrays in Java work differently than they do in C/C++. Following are some importa... |
Design Patterns - Adapter Pattern | Adapter pattern works as a bridge between two incompatible interfaces. This type of design pattern comes under structural pattern as this pattern combines the capability of two independent interfaces.
This pattern involves a single class which is responsible to join functionalities of independent or incompatible interf... | [
{
"code": null,
"e": 2952,
"s": 2751,
"text": "Adapter pattern works as a bridge between two incompatible interfaces. This type of design pattern comes under structural pattern as this pattern combines the capability of two independent interfaces."
},
{
"code": null,
"e": 3307,
"s": ... |
D3.js mouse() Function - GeeksforGeeks | 13 Aug, 2020
The d3.mouse() function in D3.js is used to return the x-coordinate and y-coordinate of the current event. If the event is clicked then it returns the x and y position of the click.
Syntax:
d3.mouse(container);
Parameters: This function accepts a single parameter as mentioned above and described below:
co... | [
{
"code": null,
"e": 24187,
"s": 24159,
"text": "\n13 Aug, 2020"
},
{
"code": null,
"e": 24369,
"s": 24187,
"text": "The d3.mouse() function in D3.js is used to return the x-coordinate and y-coordinate of the current event. If the event is clicked then it returns the x and y posi... |
How to draw an average line for a scatter plot in MatPlotLib? | To draw an average line for a plot in matplotlib, we can take the following steps −
Set the figure size and adjust the padding between and around the subplots.
Set the figure size and adjust the padding between and around the subplots.
Make x and y data points using numpy.
Make x and y data points using numpy.
Use subp... | [
{
"code": null,
"e": 1146,
"s": 1062,
"text": "To draw an average line for a plot in matplotlib, we can take the following steps −"
},
{
"code": null,
"e": 1222,
"s": 1146,
"text": "Set the figure size and adjust the padding between and around the subplots."
},
{
"code": ... |
Speeding up your Algorithms Part 4— Dask | by Puneet Grover | Towards Data Science | This is the fourth post in a series I am writing. All posts are here:
Speed Up your Algorithms Part 1 — PyTorchSpeed Up your Algorithms Part 2 — NumbaSpeed Up your Algorithms Part 3 — ParallelizationSpeed Up your Algorithms Part 4 — Dask
Speed Up your Algorithms Part 1 — PyTorch
Speed Up your Algorithms Part 2 — Numba
... | [
{
"code": null,
"e": 242,
"s": 172,
"text": "This is the fourth post in a series I am writing. All posts are here:"
},
{
"code": null,
"e": 410,
"s": 242,
"text": "Speed Up your Algorithms Part 1 — PyTorchSpeed Up your Algorithms Part 2 — NumbaSpeed Up your Algorithms Part 3 — Pa... |
VBA - WeekDay | The WeekDay function returns an integer from 1 to 7 that represents the day of the week for the specified date.
Weekday(date[,firstdayofweek])
Date − A required parameter. The weekday will return a specified date.
Date − A required parameter. The weekday will return a specified date.
Firstdayofweek − An optional par... | [
{
"code": null,
"e": 2047,
"s": 1935,
"text": "The WeekDay function returns an integer from 1 to 7 that represents the day of the week for the specified date."
},
{
"code": null,
"e": 2081,
"s": 2047,
"text": "Weekday(date[,firstdayofweek]) \n"
},
{
"code": null,
"e"... |
AutoML Gentle Introduction | Towards Data Science | Automated Machine Learning or AutoML according to Wikipedia is the process of automating the process of applying machine learning to real-world problems. AutoML intended to produce a complete pipeline from raw data into the deployable machine learning model. In a simpler term, AutoML capable to automatically create a m... | [
{
"code": null,
"e": 649,
"s": 171,
"text": "Automated Machine Learning or AutoML according to Wikipedia is the process of automating the process of applying machine learning to real-world problems. AutoML intended to produce a complete pipeline from raw data into the deployable machine learning mod... |
Find Last Digit of a^b for Large Numbers in C++ | In this problem, we are given two numbers a and b. Our task is to find Last Digit of a^b for Large Numbers.
Let’s take an example to understand the problem,
Input: a = 4 b = 124
Output: 6
Explanation:
The value of a^b is 4.523128486 * 1074
The solution to the problem is based on the fact that all the exponents of a ... | [
{
"code": null,
"e": 1171,
"s": 1062,
"text": "In this problem, we are given two numbers a and b. Our task is to find Last Digit of a^b for Large Numbers. "
},
{
"code": null,
"e": 1221,
"s": 1171,
"text": "Let’s take an example to understand the problem, "
},
{
"code": n... |
Batch Script - Relational Operators | Relational operators allow of the comparison of objects. Below are the relational operators available.
The following code snippet shows how the various operators can be used.
@echo off
SET /A a = 5
SET /A b = 10
if %a% EQU %b% echo A is equal to than B
if %a% NEQ %b% echo A is not equal to than B
if %a% LSS %b% ec... | [
{
"code": null,
"e": 2272,
"s": 2169,
"text": "Relational operators allow of the comparison of objects. Below are the relational operators available."
},
{
"code": null,
"e": 2344,
"s": 2272,
"text": "The following code snippet shows how the various operators can be used."
},
... |
Minimum Steps | Practice | GeeksforGeeks | Anuj has challenged Arun to climb N stairs but at only in powers of P and Q. Now Arun being a lazy guy wants to do this in minimum number of steps possible. So he has asked for your help to calculate the minimum number of steps he requires to take for climbing N stairs ( 1 step = some power of P or Q stairs (including ... | [
{
"code": null,
"e": 575,
"s": 238,
"text": "Anuj has challenged Arun to climb N stairs but at only in powers of P and Q. Now Arun being a lazy guy wants to do this in minimum number of steps possible. So he has asked for your help to calculate the minimum number of steps he requires to take for cli... |
Exploratory Factor Analysis in R. Learning by doing | by Anh T. Dang | Towards Data Science | Factor analysis is a statistical method used to search for some unobserved variables called factors from observed variables called factors.
This beginning of the method was named exploratory factor analysis (EFA).
Another variation of factor analysis is confirmatory factor analysis (CFA) will not be explored in this ar... | [
{
"code": null,
"e": 312,
"s": 172,
"text": "Factor analysis is a statistical method used to search for some unobserved variables called factors from observed variables called factors."
},
{
"code": null,
"e": 386,
"s": 312,
"text": "This beginning of the method was named explora... |
Digital Root of a given large integer using Recursion - GeeksforGeeks | 25 Oct, 2021
The digital root of a positive integer is found by summing the digits of the integer. If the resulting value is a single digit then that digit is the digital root. If the resulting value contains two or more digits, those digits are summed and the process is repeated. This is continued as long as necessary... | [
{
"code": null,
"e": 24727,
"s": 24699,
"text": "\n25 Oct, 2021"
},
{
"code": null,
"e": 25228,
"s": 24727,
"text": "The digital root of a positive integer is found by summing the digits of the integer. If the resulting value is a single digit then that digit is the digital root.... |
C++ Program to Find the Mode in a Data Set | This is a C++ program to find the Mode in a data set.
Begin
function insertinset() to insert data in the set.
Create newnode and temp(t) node.
Node to be inserted in the list using newnode.
If head is null then
assign new node to head and increase the count.
During insertion perform insertion sort ... | [
{
"code": null,
"e": 1116,
"s": 1062,
"text": "This is a C++ program to find the Mode in a data set."
},
{
"code": null,
"e": 1512,
"s": 1116,
"text": "Begin\n function insertinset() to insert data in the set.\n Create newnode and temp(t) node.\n Node to be inserted in the ... |
Batch Script - Deleting from the Registry | Deleting from the registry is done via the REG DEL command. Note that in order to delete values from the registry you need to have sufficient privileges on the system to perform this operation.
The REG DELETE command has the following variations. In the second variation, the default value will be removed and in the las... | [
{
"code": null,
"e": 2363,
"s": 2169,
"text": "Deleting from the registry is done via the REG DEL command. Note that in order to delete values from the registry you need to have sufficient privileges on the system to perform this operation."
},
{
"code": null,
"e": 2557,
"s": 2363,
... |
C Program to Find a pair with the given difference - GeeksforGeeks | 21 Dec, 2021
Given an unsorted array and a number n, find if there exists a pair of elements in the array whose difference is n. Examples:
Input: arr[] = {5, 20, 3, 2, 50, 80}, n = 78
Output: Pair Found: (2, 80)
Input: arr[] = {90, 70, 20, 80, 50}, n = 45
Output: No Such Pair
The simplest method is to run two loop... | [
{
"code": null,
"e": 24286,
"s": 24258,
"text": "\n21 Dec, 2021"
},
{
"code": null,
"e": 24414,
"s": 24286,
"text": "Given an unsorted array and a number n, find if there exists a pair of elements in the array whose difference is n. Examples: "
},
{
"code": null,
"e"... |
Optimising a Machine Learning Model with the Confusion Matrix | by Rebecca Vickery | Towards Data Science | The confusion matrix, in machine learning, is a grid of values that help to evaluate the performance of supervised classification models. From this grid, you can also compute a number of metrics to give a score for the model these include precision, recall and the F1-score. Although on the surface this grid is quite si... | [
{
"code": null,
"e": 629,
"s": 172,
"text": "The confusion matrix, in machine learning, is a grid of values that help to evaluate the performance of supervised classification models. From this grid, you can also compute a number of metrics to give a score for the model these include precision, recal... |
How can I save a HashMap to Sharedpreferences in Android Kotlin? | This example demonstrates how to save a HashMap to Sharedpreferences in Android Kotlin.
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"?>... | [
{
"code": null,
"e": 1150,
"s": 1062,
"text": "This example demonstrates how to save a HashMap to Sharedpreferences in Android Kotlin."
},
{
"code": null,
"e": 1279,
"s": 1150,
"text": "Step 1 − Create a new project in Android Studio, go to File ? New Project and fill all require... |
Future class in Dart Programming | There are different classes and keywords in Dart which we can use when we want to run Asynchronous code. The future class allows us to run asynchronous code and we can also avoid the callback hell with the help of it. A future mainly represents the result of an asynchronous operation.
In Dart, there are many standards ... | [
{
"code": null,
"e": 1348,
"s": 1062,
"text": "There are different classes and keywords in Dart which we can use when we want to run Asynchronous code. The future class allows us to run asynchronous code and we can also avoid the callback hell with the help of it. A future mainly represents the resu... |
Tryit Editor v3.7 | CSS Style Images
Tryit: Image hover - Fade in a box | [
{
"code": null,
"e": 26,
"s": 9,
"text": "CSS Style Images"
}
] |
Still using Accuracy as a Classification Metric? | by Pranav Kaushik | Towards Data Science | Accuracy is the most common evaluation metric for classification models because of its simplicity and interpretation. But when you have a multiclass classification problem in hand, say, for example, with 15 different target classes, looking at the standard accuracy of the model might be misleading. This is where “top N... | [
{
"code": null,
"e": 633,
"s": 171,
"text": "Accuracy is the most common evaluation metric for classification models because of its simplicity and interpretation. But when you have a multiclass classification problem in hand, say, for example, with 15 different target classes, looking at the standar... |
DTD - Quick Guide | XML Document Type Declaration, commonly known as DTD, is a way to describe precisely the XML language. DTDs check the validity of structure and vocabulary of an XML document against the grammatical rules of the appropriate XML language.
An XML document can be defined as −
Well-formed − If the XML document adheres to al... | [
{
"code": null,
"e": 1903,
"s": 1666,
"text": "XML Document Type Declaration, commonly known as DTD, is a way to describe precisely the XML language. DTDs check the validity of structure and vocabulary of an XML document against the grammatical rules of the appropriate XML language."
},
{
"c... |
How To Handle Map Projections Properly In Python | by Abdishakur | Towards Data Science | If you have ever tried overlaying geospatial data and it turns out that they do not align properly, the chances are that you have encountered the annoying coordinate reference system problem. In this tutorial, we first clarify the concept and terminology of the Coordinate Reference System (CRS) followed by a tutorial o... | [
{
"code": null,
"e": 545,
"s": 172,
"text": "If you have ever tried overlaying geospatial data and it turns out that they do not align properly, the chances are that you have encountered the annoying coordinate reference system problem. In this tutorial, we first clarify the concept and terminology ... |
How to get currently running function name using JavaScript ? - GeeksforGeeks | 17 Dec, 2019
Given a function and the task is to get the name of function that is currently running using JavaScript.
Approach 1: Using arguments.callee method: It refers to the currently executing function inside the function body of that function. In this method, we use arguments.callee to refer to the name of the fu... | [
{
"code": null,
"e": 24712,
"s": 24684,
"text": "\n17 Dec, 2019"
},
{
"code": null,
"e": 24817,
"s": 24712,
"text": "Given a function and the task is to get the name of function that is currently running using JavaScript."
},
{
"code": null,
"e": 25939,
"s": 24817... |
How to install Maven on Windows10 - onlinetutorialspoint | PROGRAMMINGJava ExamplesC Examples
Java Examples
C Examples
C Tutorials
aws
JAVAEXCEPTIONSCOLLECTIONSSWINGJDBC
EXCEPTIONS
COLLECTIONS
SWING
JDBC
JAVA 8
SPRING
SPRING BOOT
HIBERNATE
PYTHON
PHP
JQUERY
PROGRAMMINGJava ExamplesC Examples
Java Examples
C Examples
C Tutorials
aws
In this tutorial, I am going to show you how ... | [
{
"code": null,
"e": 158,
"s": 123,
"text": "PROGRAMMINGJava ExamplesC Examples"
},
{
"code": null,
"e": 172,
"s": 158,
"text": "Java Examples"
},
{
"code": null,
"e": 183,
"s": 172,
"text": "C Examples"
},
{
"code": null,
"e": 195,
"s": 183,
... |
Type Hinting in PHP 7 | PHP 7 uses two types of hinting in scalar type declaration and return type declaration −
Weak type hinting
Strict type hinting
By default, PHP 7 works in weak type checking mode.Weak type checking will not give any error or fatal error.When a type declaration mismatch occurs it will simply execute the code without thro... | [
{
"code": null,
"e": 1151,
"s": 1062,
"text": "PHP 7 uses two types of hinting in scalar type declaration and return type declaration −"
},
{
"code": null,
"e": 1169,
"s": 1151,
"text": "Weak type hinting"
},
{
"code": null,
"e": 1189,
"s": 1169,
"text": "Stri... |
Gamma Function — Intuition, Derivation, and Examples | by Aerin Kim | Towards Data Science | Why should I care?
Many probability distributions are defined by using the gamma function — such as Gamma distribution, Beta distribution, Dirichlet distribution, Chi-squared distribution, and Student’s t-distribution, etc.For data scientists, machine learning engineers, researchers, the Gamma function is probably one ... | [
{
"code": null,
"e": 191,
"s": 172,
"text": "Why should I care?"
},
{
"code": null,
"e": 911,
"s": 191,
"text": "Many probability distributions are defined by using the gamma function — such as Gamma distribution, Beta distribution, Dirichlet distribution, Chi-squared distributio... |
Batch Script - Copying Registry Keys | Copying from the registry is done via the REG COPY command. Note that in order to copy values from the registry, you need to have sufficient privileges on the system to perform this operation on both the source location and the destination location.
REG COPY [\\SourceMachine\][ROOT\]RegKey [\\DestMachine\][ROOT\]RegKey... | [
{
"code": null,
"e": 2419,
"s": 2169,
"text": "Copying from the registry is done via the REG COPY command. Note that in order to copy values from the registry, you need to have sufficient privileges on the system to perform this operation on both the source location and the destination location."
... |
Java String compareTo() Method | ❮ String Methods
Compare two strings:
String myStr1 = "Hello";
String myStr2 = "Hello";
System.out.println(myStr1.compareTo(myStr2)); // Returns 0 because they are equal
Try it Yourself »
The compareTo() method compares two strings
lexicographically.
The comparison is based on the Unicode value of each character in... | [
{
"code": null,
"e": 19,
"s": 0,
"text": "\n❮ String Methods\n"
},
{
"code": null,
"e": 40,
"s": 19,
"text": "Compare two strings:"
},
{
"code": null,
"e": 172,
"s": 40,
"text": "String myStr1 = \"Hello\";\nString myStr2 = \"Hello\";\nSystem.out.println(myStr1... |
YAML - Basics | Now that you have an idea about YAML and its features, let us learn its basics with syntax and other operations. Remember that YAML includes a human readable structured format.
When you are creating a file in YAML, you should remember the following basic rules −
YAML is case sensitive
YAML is case sensitive
The files s... | [
{
"code": null,
"e": 2225,
"s": 2048,
"text": "Now that you have an idea about YAML and its features, let us learn its basics with syntax and other operations. Remember that YAML includes a human readable structured format."
},
{
"code": null,
"e": 2311,
"s": 2225,
"text": "When ... |
PostgreSQL - REGEXP_MATCHES Function - GeeksforGeeks | 01 Feb, 2021
The PostgreSQL REGEXP_MATCHES() function is used to match a POSIX regular expression against a string and subsequently returns the strings that match the pattern.
Syntax:REGEXP_MATCHES(source_string, pattern [, flags])
Let’s analyze the above syntax:
The source is a string from which the regular expressi... | [
{
"code": null,
"e": 23425,
"s": 23397,
"text": "\n01 Feb, 2021"
},
{
"code": null,
"e": 23588,
"s": 23425,
"text": "The PostgreSQL REGEXP_MATCHES() function is used to match a POSIX regular expression against a string and subsequently returns the strings that match the pattern."... |
A Multi-page Interactive Dashboard with Streamlit and Plotly | by Alan Jones | Towards Data Science | The great thing about Streamlit is, not only is it beautiful, but it’s simple, too.
A few months ago I wrote about how to write a dashboard using Plotly and Flask — it was an alternative approach to using Dash and I was quite pleased with it. The app consisted of two files, a Python/Flask app of 20-odd lines and an HTM... | [
{
"code": null,
"e": 255,
"s": 171,
"text": "The great thing about Streamlit is, not only is it beautiful, but it’s simple, too."
},
{
"code": null,
"e": 559,
"s": 255,
"text": "A few months ago I wrote about how to write a dashboard using Plotly and Flask — it was an alternative... |
PyQt5 - QRadioButton Widget | A QRadioButton class object presents a selectable button with a text label. The user can select one of many options presented on the form. This class is derived from QAbstractButton class.
Radio buttons are autoexclusive by default. Hence, only one of the radio buttons in the parent window can be selected at a time. If... | [
{
"code": null,
"e": 2152,
"s": 1963,
"text": "A QRadioButton class object presents a selectable button with a text label. The user can select one of many options presented on the form. This class is derived from QAbstractButton class."
},
{
"code": null,
"e": 2482,
"s": 2152,
"t... |
Equivalent of waitForVisible/waitForElementPresent in Selenium WebDriver tests using Java? | There are equivalent methods for waitForVisible/waitForElementPresent in Selenium webdriver. They are a part of the synchronization concept in Selenium.
The implicit and explicit waits are the two types of waits in synchronization.
The implicit wait is the wait applied to the webdriver for a specified amount of time fo... | [
{
"code": null,
"e": 1215,
"s": 1062,
"text": "There are equivalent methods for waitForVisible/waitForElementPresent in Selenium webdriver. They are a part of the synchronization concept in Selenium."
},
{
"code": null,
"e": 1294,
"s": 1215,
"text": "The implicit and explicit wai... |
Check for Majority Element in a sorted array - GeeksforGeeks | 03 Mar, 2022
Question: Write a C function to find if a given integer x appears more than n/2 times in a sorted array of n integers. Basically, we need to write a function say isMajority() that takes an array (arr[] ), array’s size (n) and a number to be searched (x) as parameters and returns true if x is a majority ele... | [
{
"code": null,
"e": 24429,
"s": 24401,
"text": "\n03 Mar, 2022"
},
{
"code": null,
"e": 24772,
"s": 24429,
"text": "Question: Write a C function to find if a given integer x appears more than n/2 times in a sorted array of n integers. Basically, we need to write a function say i... |
PHP - Sending Emails using PHP | PHP must be configured correctly in the php.ini file with the details of how your system sends email. Open php.ini file available in /etc/ directory and find the section headed [mail function].
Windows users should ensure that two directives are supplied. The first is called SMTP that defines your email server address.... | [
{
"code": null,
"e": 2951,
"s": 2757,
"text": "PHP must be configured correctly in the php.ini file with the details of how your system sends email. Open php.ini file available in /etc/ directory and find the section headed [mail function]."
},
{
"code": null,
"e": 3151,
"s": 2951,
... |
Get only specific values in an array of objects in JavaScript? | Let’s say the following is our array of objects −
var details = [{
studentName: "John",
studentMarks: 92
},
{
studentName: "David",
studentMarks: 89
},
{
studentName: "Mike",
studentMarks: 98
},
];
To get only specific values in an array of objects in JavaScript, use the concept of filter().
var detai... | [
{
"code": null,
"e": 1112,
"s": 1062,
"text": "Let’s say the following is our array of objects −"
},
{
"code": null,
"e": 1278,
"s": 1112,
"text": "var details = [{\n studentName: \"John\",\n studentMarks: 92\n},\n{\n studentName: \"David\",\n studentMarks: 89\n},\n{\n ... |
Updating nested document in MongoDB | To update the nested document, use $set. Let us create a collection with documents −
> db.demo315.insertOne({ _id :101,
... details: [
... {Name: 'Chris', subjects: [{id:1001, SubjectName:"MySQL"}]}
... ]
... }
...)
{ "acknowledged" : true, "insertedId" : 101 }
Display all documents from a collection with the hel... | [
{
"code": null,
"e": 1147,
"s": 1062,
"text": "To update the nested document, use $set. Let us create a collection with documents −"
},
{
"code": null,
"e": 1330,
"s": 1147,
"text": "> db.demo315.insertOne({ _id :101,\n... details: [\n... {Name: 'Chris', subjects: [{id:1001,... |
Python 3 - Number sin() Method | The sin() method returns the sine of x, in radians.
Following is the syntax for sin() method −
sin(x)
Note − This function is not accessible directly, so we need to import math module and then we need to call this function using math static object.
x − This must be a numeric value.
This method returns a numeric value ... | [
{
"code": null,
"e": 2392,
"s": 2340,
"text": "The sin() method returns the sine of x, in radians."
},
{
"code": null,
"e": 2435,
"s": 2392,
"text": "Following is the syntax for sin() method −"
},
{
"code": null,
"e": 2443,
"s": 2435,
"text": "sin(x)\n"
},
... |
Tutorial: Linear Regression with Stochastic Gradient Descent | by Raimi Karim | Towards Data Science | You can find the backpropagation demo here.
This article should provide you a good start for us to dive deep into deep learning. Let me walk you through the step-by-step calculations for a linear regression task using stochastic gradient descent.
Preparation1.1 Data1.2 Model1.3 Define loss function1.4 Minimising loss f... | [
{
"code": null,
"e": 216,
"s": 172,
"text": "You can find the backpropagation demo here."
},
{
"code": null,
"e": 419,
"s": 216,
"text": "This article should provide you a good start for us to dive deep into deep learning. Let me walk you through the step-by-step calculations for... |
Automating Scrolling using Python-Opencv by Color Detection - GeeksforGeeks | 13 Jan, 2021
Prerequisites:
Opencv
PyAutoGUI
It is possible to perform actions without actually giving any input through touchpad or mouse. This article discusses how this can be done using opencv module. Here we will use color detection to scroll screen. When a certain color is detected by the program during executio... | [
{
"code": null,
"e": 24292,
"s": 24264,
"text": "\n13 Jan, 2021"
},
{
"code": null,
"e": 24308,
"s": 24292,
"text": "Prerequisites: "
},
{
"code": null,
"e": 24315,
"s": 24308,
"text": "Opencv"
},
{
"code": null,
"e": 24325,
"s": 24315,
"te... |
Best Ways to Visualize Proportions | by Robert Wood | Towards Data Science | Whatever your application of data analytics & data science, there are proportions everywhere. Proportions are all about understanding the different parts that make up a whole.
Proportions are pretty much just a count of something across a given categorical variable. That could be the number of customers across differen... | [
{
"code": null,
"e": 348,
"s": 172,
"text": "Whatever your application of data analytics & data science, there are proportions everywhere. Proportions are all about understanding the different parts that make up a whole."
},
{
"code": null,
"e": 752,
"s": 348,
"text": "Proportion... |
exit() vs _Exit() in C/C++ | The function exit() is used to terminate the calling function immediately without executing further processes. As exit() function calls, it terminates processes. It calls the constructor of class only. It is declared in “stdlib.h” header file in C language. It does not return anything.
The following is the syntax of ex... | [
{
"code": null,
"e": 1349,
"s": 1062,
"text": "The function exit() is used to terminate the calling function immediately without executing further processes. As exit() function calls, it terminates processes. It calls the constructor of class only. It is declared in “stdlib.h” header file in C langu... |
Dimensionality Reduction — Does PCA really improve classification outcome? | by Meigarom Lopes | Towards Data Science | I have come across a couple resources about dimensionality reduction techniques. This topic is definitively one of the most interesting ones, it is great to think that there are algorithms able to reduce the number of features by choosing the most important ones that still represent the entire dataset. One of the advan... | [
{
"code": null,
"e": 593,
"s": 171,
"text": "I have come across a couple resources about dimensionality reduction techniques. This topic is definitively one of the most interesting ones, it is great to think that there are algorithms able to reduce the number of features by choosing the most importa... |
DateTime.Add() Method in C# - GeeksforGeeks | 18 Jan, 2019
This method is used to return a new DateTime that adds the value of the specified TimeSpan to the value of this instance.
Syntax:
public DateTime Add (TimeSpan value);
Here, value is a positive or negative time interval.
Return Value: This method returns an object whose value is the sum of the date and tim... | [
{
"code": null,
"e": 24010,
"s": 23982,
"text": "\n18 Jan, 2019"
},
{
"code": null,
"e": 24132,
"s": 24010,
"text": "This method is used to return a new DateTime that adds the value of the specified TimeSpan to the value of this instance."
},
{
"code": null,
"e": 2414... |
A Simple Guide to Beautiful Visualizations in Python | by Frank Andrade | Towards Data Science | You’re in the middle of a project and suddenly you need to make a plot to analyze the data or present the insights found. You don’t have too much time, but you definitely don’t want to create a plot that looks like this.
However you also don’t want to get too technical and waste more time on something that isn’t the ma... | [
{
"code": null,
"e": 392,
"s": 171,
"text": "You’re in the middle of a project and suddenly you need to make a plot to analyze the data or present the insights found. You don’t have too much time, but you definitely don’t want to create a plot that looks like this."
},
{
"code": null,
"e... |
SAP Scripts - Print Preview of a Document | In SAP Script, it is also possible to preview a document before printing. To perform Print Preview of the document, go to Text → Print Preview.
We have opened a document with the following text −
Signed
Enclosures
Prepared Approved Confirmed ... | [
{
"code": null,
"e": 2667,
"s": 2523,
"text": "In SAP Script, it is also possible to preview a document before printing. To perform Print Preview of the document, go to Text → Print Preview."
},
{
"code": null,
"e": 2719,
"s": 2667,
"text": "We have opened a document with the fol... |
Write a function to delete a Linked List in C++ Programming | Here, we will create a function that will delete all elements of a linked list one by one.
In c/c++, there is no specific function to perform this task but in java, the automatic garbage collection is done to ease deleting linked list.
Now, let’s see the implementation of this program,
Live Demo
#include <iostream>
us... | [
{
"code": null,
"e": 1153,
"s": 1062,
"text": "Here, we will create a function that will delete all elements of a linked list one by one."
},
{
"code": null,
"e": 1298,
"s": 1153,
"text": "In c/c++, there is no specific function to perform this task but in java, the automatic gar... |
PHP Autoloading Classes | In order to use class defined in another PHP script, we can incorporate it with include or require statements. However, PHP's autoloading feature doesn't need such explicit inclusion. Instead, when a class is used (for declaring its object etc.) PHP parser loads it automatically, if it is registered with spl_autoload_r... | [
{
"code": null,
"e": 1535,
"s": 1062,
"text": "In order to use class defined in another PHP script, we can incorporate it with include or require statements. However, PHP's autoloading feature doesn't need such explicit inclusion. Instead, when a class is used (for declaring its object etc.) PHP par... |
JSTL - fn:escapeXml() Function | The fn:escapeXml() function escapes characters that can be interpreted as XML markup.
The fn:escapeXml() function has the following syntax −
java.lang.String escapeXml(java.lang.String)
Following is the example to explain the functionality of the fn:escapeXml() function −
<%@ taglib uri = "http://java.sun.com/jsp/jstl... | [
{
"code": null,
"e": 2325,
"s": 2239,
"text": "The fn:escapeXml() function escapes characters that can be interpreted as XML markup."
},
{
"code": null,
"e": 2380,
"s": 2325,
"text": "The fn:escapeXml() function has the following syntax −"
},
{
"code": null,
"e": 2426... |
MLOps with MLFlow and Amazon SageMaker Pipelines | by Sofian Hamiti | Towards Data Science | Earlier this year, I published a step-by-step guide to deploying MLflow on AWS Fargate, and using it with Amazon SageMaker. This can help streamline the experimental phase of an ML project.
In this post, we will go a step further and automate an end-to-end ML lifecycle using MLflow and Amazon SageMaker Pipelines.
SageM... | [
{
"code": null,
"e": 362,
"s": 172,
"text": "Earlier this year, I published a step-by-step guide to deploying MLflow on AWS Fargate, and using it with Amazon SageMaker. This can help streamline the experimental phase of an ML project."
},
{
"code": null,
"e": 487,
"s": 362,
"text... |
How to Deploy Docker Containers to The Cloud | Towards Data Science | Docker containers are brilliant little things. They are essentially self-contained applications that can run across any OS.
Imagine you have a Python application, you bundle it, along with everything you need to run it into a Docker container — that container can now be run on any Windows, Linux, or macOS system, witho... | [
{
"code": null,
"e": 296,
"s": 172,
"text": "Docker containers are brilliant little things. They are essentially self-contained applications that can run across any OS."
},
{
"code": null,
"e": 516,
"s": 296,
"text": "Imagine you have a Python application, you bundle it, along wi... |
How to add metadata to a DataFrame or Series with Pandas in Python? - GeeksforGeeks | 22 Jul, 2021
Metadata, also known as data about the data. Metadata can give us data description, summary, storage in memory, and datatype of that particular data. We are going to display and create metadata.
Scenario:
We can get metadata simply by using info() command
We can add metadata to the existing data and can vi... | [
{
"code": null,
"e": 24401,
"s": 24373,
"text": "\n22 Jul, 2021"
},
{
"code": null,
"e": 24596,
"s": 24401,
"text": "Metadata, also known as data about the data. Metadata can give us data description, summary, storage in memory, and datatype of that particular data. We are going ... |
CSS Minifier & Compressor | Editable CSS Code
12345678#fileUpload { white-space:nowrap;position:relative;color:#575765;z-index:999}#uploadmenu a{ color:#424242; text-decoration:none; padding:0px;}#uploadmenu div{ width:290px;}#uploadmenu div{ margin:0px 2px 0px 0px; padding:4px 5px 5px 5px; text-align:center; float:none; list-style:none; line-hei... | [
{
"code": null,
"e": 18,
"s": 0,
"text": "Editable CSS Code"
},
{
"code": null,
"e": 550,
"s": 18,
"text": "12345678#fileUpload { white-space:nowrap;position:relative;color:#575765;z-index:999}#uploadmenu a{ color:#424242; text-decoration:none; padding:0px;}#uploadmenu div{ width... |
Angular7 - Services | We might come across a situation where we need some code to be used everywhere on the page. For example, it can be for data connection that needs to be shared across components. This is achieved with the help of Services. With services, we can access methods and properties across other components in the entire project.... | [
{
"code": null,
"e": 2382,
"s": 2061,
"text": "We might come across a situation where we need some code to be used everywhere on the page. For example, it can be for data connection that needs to be shared across components. This is achieved with the help of Services. With services, we can access me... |
MySQL - Using Joins | In the previous chapters, we were getting data from one table at a time. This is good enough for simple takes, but in most of the real world MySQL usages, you will often need to get data from multiple tables in a single query.
You can use multiple tables in your single SQL query. The act of joining in MySQL refers to s... | [
{
"code": null,
"e": 2560,
"s": 2333,
"text": "In the previous chapters, we were getting data from one table at a time. This is good enough for simple takes, but in most of the real world MySQL usages, you will often need to get data from multiple tables in a single query."
},
{
"code": null... |
Print N-bit binary numbers having more 1s than 0s | Practice | GeeksforGeeks | Given a positive integer N, the task is to find all the N bit binary numbers having more than or equal 1’s than 0’s for any prefix of the number.
Example 1:
Input: N = 2
Output: 11 10
Explanation: 11 and 10 have more than
or equal 1's than 0's
Example 2:
Input: N = 3
Output: 111 110 101
Explanation: 111, 110 and 1... | [
{
"code": null,
"e": 385,
"s": 238,
"text": "Given a positive integer N, the task is to find all the N bit binary numbers having more than or equal 1’s than 0’s for any prefix of the number. "
},
{
"code": null,
"e": 396,
"s": 385,
"text": "Example 1:"
},
{
"code": null,
... |
I can print out each element of an array by iterating through all values, but can't get a specific element in MongoDB | To fetch a specific element, iterate with forEach(). Let us create a collection with documents −
> db.demo742.insertOne({ "userDetails": [ { "userName":"Robert", "CountryName":"UK" }, { "userName":"David", "CountryName":"AUS" } ]} );
{
"acknowledged" : true,
"insertedId" : ObjectId("5ead790b57bb72a10bcf0677")
}
D... | [
{
"code": null,
"e": 1159,
"s": 1062,
"text": "To fetch a specific element, iterate with forEach(). Let us create a collection with documents −"
},
{
"code": null,
"e": 1381,
"s": 1159,
"text": "> db.demo742.insertOne({ \"userDetails\": [ { \"userName\":\"Robert\", \"CountryName\... |
Superior Feature Selection By Combining Multiple Models | Towards Data Science | There are many feature selection methods in Machine Learning. Each one may give different results depending on how you use them, so it is hard to trust a single method entirely. Wouldn’t it be cool to have multiple methods cast their own vote on whether we should keep a feature or not? It would be just like the Random ... | [
{
"code": null,
"e": 690,
"s": 172,
"text": "There are many feature selection methods in Machine Learning. Each one may give different results depending on how you use them, so it is hard to trust a single method entirely. Wouldn’t it be cool to have multiple methods cast their own vote on whether w... |
Kibana - Dev Tools | We can use Dev Tools to upload data in Elasticsearch, without using Logstash. We can post, put, delete, search the data we want in Kibana using Dev Tools.
To create new index in Kibana we can use following command in dev tools −
The command to create index is as shown here −
PUT /usersdata?pretty
Once you execute this... | [
{
"code": null,
"e": 2260,
"s": 2105,
"text": "We can use Dev Tools to upload data in Elasticsearch, without using Logstash. We can post, put, delete, search the data we want in Kibana using Dev Tools."
},
{
"code": null,
"e": 2334,
"s": 2260,
"text": "To create new index in Kiba... |
Compute the condition number of a given matrix using NumPy | 29 Aug, 2020
In this article, we will use the cond() function of the NumPy package to calculate the condition number of a given matrix. cond() is a function of linear algebra module in NumPy package.
Syntax:
numpy.linalg.cond(x, p=None)
Example 1: Condition Number of 2X2 matrix
Python3
# Importing libraryimport numpy ... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n29 Aug, 2020"
},
{
"code": null,
"e": 215,
"s": 28,
"text": "In this article, we will use the cond() function of the NumPy package to calculate the condition number of a given matrix. cond() is a function of linear algebra module in Num... |
Method Class | getParameterTypes() Method in Java | 28 Oct, 2019
Prerequisite : Java.lang.Class class in Java | Set 1, Java.lang.Class class in Java | Set 2
java.lang.reflectMethod class help us to get information of a single method on a class or interface. This class also provides access to the methods of classes and invoke them at runtime.
getParameterTypes() method o... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n28 Oct, 2019"
},
{
"code": null,
"e": 120,
"s": 28,
"text": "Prerequisite : Java.lang.Class class in Java | Set 1, Java.lang.Class class in Java | Set 2"
},
{
"code": null,
"e": 307,
"s": 120,
"text": "java.lang.refl... |
What is Dynamic Memory Allocation? | 09 Jun, 2021
Resources are always a premium. We have strived to achieve better utilization of resources at all times; that is the premise of our progress. Related to this pursuit, is the concept of memory allocation.Memory has to be allocated to the variables that we create, so that actual variables can be brought to e... | [
{
"code": null,
"e": 54,
"s": 26,
"text": "\n09 Jun, 2021"
},
{
"code": null,
"e": 1573,
"s": 54,
"text": "Resources are always a premium. We have strived to achieve better utilization of resources at all times; that is the premise of our progress. Related to this pursuit, is the... |
JSON with Perl | This chapter covers how to encode and decode JSON objects using Perl programming language. Let's start with preparing the environment to start our programming with Perl for JSON.
Before you start encoding and decoding JSON using Perl, you need to install JSON module, which can be obtained from CPAN. Once you downloaded... | [
{
"code": null,
"e": 2093,
"s": 1914,
"text": "This chapter covers how to encode and decode JSON objects using Perl programming language. Let's start with preparing the environment to start our programming with Perl for JSON."
},
{
"code": null,
"e": 2316,
"s": 2093,
"text": "Bef... |
Shadows in Bootstrap with Examples | 22 Jun, 2020
Bootstrap Shadow is a property that provides shadow to an element with box-shadow utilities, the intensity can vary from user to user. The shadow property can be very much useful when the user needs to highlight something specifically on the web page.
Example 1: The below example represents 4 different sha... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n22 Jun, 2020"
},
{
"code": null,
"e": 280,
"s": 28,
"text": "Bootstrap Shadow is a property that provides shadow to an element with box-shadow utilities, the intensity can vary from user to user. The shadow property can be very much use... |
Python | Pandas dataframe.std() | 22 Oct, 2019
Python is a great language for doing data analysis, primarily because of the fantastic ecosystem of data-centric python packages. Pandas is one of those packages and makes importing and analyzing data much easier.
Pandas dataframe.std() function return sample standard deviation over requested axis. By defa... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n22 Oct, 2019"
},
{
"code": null,
"e": 242,
"s": 28,
"text": "Python is a great language for doing data analysis, primarily because of the fantastic ecosystem of data-centric python packages. Pandas is one of those packages and makes imp... |
Java Program to List all Files in a Directory and Nested Sub-Directories | 26 Jan, 2022
Prerequisites: File class
Given a main directory/folder, list all the files from it, and if this directory has other nested sub-directories, list files from them. It is pretty easy to observe a simple recursion pattern in the above problem.
Algorithm :
Create a File object for the main directory.Get an ar... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n26 Jan, 2022"
},
{
"code": null,
"e": 78,
"s": 52,
"text": "Prerequisites: File class"
},
{
"code": null,
"e": 293,
"s": 78,
"text": "Given a main directory/folder, list all the files from it, and if this directory ... |
Matplotlib.figure.Figure.show() in Python | 03 May, 2020
Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The figure module provides the top-level Artist, the Figure, which contains all the plot elements. This module is used to control the default spacing of the subplots and top level container for all plot elemen... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n03 May, 2020"
},
{
"code": null,
"e": 339,
"s": 28,
"text": "Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The figure module provides the top-level Artist, the Figure, which contains a... |
Convert values of an Object to Logical Vector in R Programming – as.logical() Function | 08 Nov, 2021
as.logical() function in R Language is used to convert an object to a logical vector.
Syntax: as.logical(x)Parameters: x: Numeric or character object
R
# R Program to convert# an object to logical vector # Creating a vectorx <- c(1, 2, 3, 0, 1.4, NA) # Calling as.logical() functionas.logical(T)as.logical("... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n08 Nov, 2021"
},
{
"code": null,
"e": 114,
"s": 28,
"text": "as.logical() function in R Language is used to convert an object to a logical vector."
},
{
"code": null,
"e": 178,
"s": 114,
"text": "Syntax: as.logical(x... |
Reverse a doubly circular linked list | 05 Jul, 2022
The problem is to reverse the given doubly circular linked list.
Examples: Input:
Output:
Algorithm:
insertEnd(head, new_node)
Declare last
if head == NULL then
new_node->next = new_node->prev = new_node
head = new_node
return
last = head->prev
new_node... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n05 Jul, 2022"
},
{
"code": null,
"e": 117,
"s": 52,
"text": "The problem is to reverse the given doubly circular linked list."
},
{
"code": null,
"e": 135,
"s": 117,
"text": "Examples: Input: "
},
{
"code": ... |
What are virtual functions in C#? | The virtual keyword is useful in modifying a method, property, indexer, or event. When you have a function defined in a class that you want to be implemented in an inherited class(es), you use virtual functions. The virtual functions could be implemented differently in different inherited class and the call to these fu... | [
{
"code": null,
"e": 1543,
"s": 1187,
"text": "The virtual keyword is useful in modifying a method, property, indexer, or event. When you have a function defined in a class that you want to be implemented in an inherited class(es), you use virtual functions. The virtual functions could be implemente... |
Search Bar using HTML, CSS and JavaScript | 01 Jul, 2022
Every website needs a search bar through which a user can search the content of their concern on that page. A basic search bar can be made using HTML, CSS, and JavaScript only. Advance searching algorithms look for many things like related content and then shows the results. The one that we are going to ma... | [
{
"code": null,
"e": 54,
"s": 26,
"text": "\n01 Jul, 2022"
},
{
"code": null,
"e": 403,
"s": 54,
"text": "Every website needs a search bar through which a user can search the content of their concern on that page. A basic search bar can be made using HTML, CSS, and JavaScript onl... |
Python VLC MediaListPlayer – Getting Current State | 29 Aug, 2020
In this article we will see how we can current state of the MediaListPlayer object in the python vlc module. VLC media player is a free and open-source portable cross-platform media player software and streaming media server developed by the VideoLAN project. Media list player is used to play multiple medi... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n29 Aug, 2020"
},
{
"code": null,
"e": 719,
"s": 28,
"text": "In this article we will see how we can current state of the MediaListPlayer object in the python vlc module. VLC media player is a free and open-source portable cross-platform... |
HTML5 - MathML | The HTML syntax of HTML5 allows for MathML elements to be used inside a document using <math>...</math> tags.
Most of the web browsers can display MathML tags. If your browser does not support MathML, then I would suggest you to use latest version of Firefox.
Following is a valid HTML5 document with MathML −
<!doctype ... | [
{
"code": null,
"e": 2718,
"s": 2608,
"text": "The HTML syntax of HTML5 allows for MathML elements to be used inside a document using <math>...</math> tags."
},
{
"code": null,
"e": 2868,
"s": 2718,
"text": "Most of the web browsers can display MathML tags. If your browser does n... |
Python program to list Sort by Number value in String - GeeksforGeeks | 18 Jul, 2021
Given a List of strings, the task is to write a Python program to sort list by the number present in the Strings. If no number is present, they will be taken to the front of the list.
Input : test_list = [“gfg is 4”, “all no 1”, “geeks over 7 seas”, “and 100 planets”] Output : [‘all no 1’, ‘gfg is 4’, ‘gee... | [
{
"code": null,
"e": 24292,
"s": 24264,
"text": "\n18 Jul, 2021"
},
{
"code": null,
"e": 24476,
"s": 24292,
"text": "Given a List of strings, the task is to write a Python program to sort list by the number present in the Strings. If no number is present, they will be taken to th... |
Bootstrap Alerts , Wells, Pagination and Pager - GeeksforGeeks | 12 Jan, 2022
Introduction and InstallationGrid SystemButtons, Glyphicons, TablesVertical Forms, Horizontal Forms, Inline FormsDropDowns and Responsive TabsProgress Bar and Jumbotron
Introduction and Installation
Grid System
Buttons, Glyphicons, Tables
Vertical Forms, Horizontal Forms, Inline Forms
DropDowns and Respons... | [
{
"code": null,
"e": 28466,
"s": 28438,
"text": "\n12 Jan, 2022"
},
{
"code": null,
"e": 28635,
"s": 28466,
"text": "Introduction and InstallationGrid SystemButtons, Glyphicons, TablesVertical Forms, Horizontal Forms, Inline FormsDropDowns and Responsive TabsProgress Bar and Jumb... |
Errors in C/C++ | In C or C++, we face different kinds of errors. These errors can be categorized into five different types. These are like below −
Syntax Error
Run-Time Error
Linker Error
Logical Error
Semantic Error
Let us see these errors one by one −
This kind of errors are occurred, when it violates the rule of C++ writing techniqu... | [
{
"code": null,
"e": 1192,
"s": 1062,
"text": "In C or C++, we face different kinds of errors. These errors can be categorized into five different types. These are like below −"
},
{
"code": null,
"e": 1205,
"s": 1192,
"text": "Syntax Error"
},
{
"code": null,
"e": 12... |
Django - Sessions | As discussed earlier, we can use client side cookies to store a lot of useful data for the web app. We have seen before that we can use client side cookies to store various data useful for our web app. This leads to lot of security holes depending on the importance of the data you want to save.
For security reasons, Dj... | [
{
"code": null,
"e": 2341,
"s": 2045,
"text": "As discussed earlier, we can use client side cookies to store a lot of useful data for the web app. We have seen before that we can use client side cookies to store various data useful for our web app. This leads to lot of security holes depending on th... |
Check if an Object is of Type Numeric in R Programming - is.numeric() Function - GeeksforGeeks | 16 Jun, 2020
is.numeric() function in R Language is used to check if the object passed to it as argument is of numeric type.
Syntax: is.numeric(x)
Parameters:x: Object to be checked
Example 1:
# R program to check if # object is of numeric type # Calling is.numeric() functionis.numeric(1)is.numeric(1.5)is.numeric(-1.5... | [
{
"code": null,
"e": 24918,
"s": 24890,
"text": "\n16 Jun, 2020"
},
{
"code": null,
"e": 25030,
"s": 24918,
"text": "is.numeric() function in R Language is used to check if the object passed to it as argument is of numeric type."
},
{
"code": null,
"e": 25052,
"s"... |
Java RMI Application | To write an RMI Java application, you would have to follow the steps given below −
Define the remote interface
Develop the implementation class (remote object)
Develop the server program
Develop the client program
Compile the application
Execute the application
A remote interface provides the description of all the met... | [
{
"code": null,
"e": 1780,
"s": 1697,
"text": "To write an RMI Java application, you would have to follow the steps given below −"
},
{
"code": null,
"e": 1808,
"s": 1780,
"text": "Define the remote interface"
},
{
"code": null,
"e": 1857,
"s": 1808,
"text": "... |
How to perform Increment in MySQL Update? | To update values incrementally in MySQL, you need to create a variable with the help of SET command. The syntax to create a variable is as follows −
set @anyVariableName := 0;
To update value, you need to use UPDATE command. Let us begin with creating a table. The query to create a table −
mysql> create table UpdateVal... | [
{
"code": null,
"e": 1211,
"s": 1062,
"text": "To update values incrementally in MySQL, you need to create a variable with the help of SET command. The syntax to create a variable is as follows −"
},
{
"code": null,
"e": 1238,
"s": 1211,
"text": "set @anyVariableName := 0;"
},
... |
Set Flex Items into equal width columns with Bootstrap | To set flex items to be of equal width column, use the flex-fill class. The class displays the items as equal width. In the below example screenshot, you can see that we have four flex items with equal width columns −
The flex-fill class is used for every flex items and in this way, we can set equal width. Below, we ha... | [
{
"code": null,
"e": 1280,
"s": 1062,
"text": "To set flex items to be of equal width column, use the flex-fill class. The class displays the items as equal width. In the below example screenshot, you can see that we have four flex items with equal width columns −"
},
{
"code": null,
"e"... |
Top 3 Alternative Python Packages for Pandas | by Cornellius Yudha Wijaya | Towards Data Science | If you enjoy my content and want to get more in-depth knowledge regarding data or just daily life as a Data Scientist, please consider subscribing to my newsletter here.
For many modern data scientists, Python is the programming language that was used for their everyday work — as a consequence, the data analysis would ... | [
{
"code": null,
"e": 342,
"s": 172,
"text": "If you enjoy my content and want to get more in-depth knowledge regarding data or just daily life as a Data Scientist, please consider subscribing to my newsletter here."
},
{
"code": null,
"e": 661,
"s": 342,
"text": "For many modern ... |
Reverse a string using Stack | Practice | GeeksforGeeks | You are given a string S, the task is to reverse the string using stack.
Example 1:
Input: S="GeeksforGeeks"
Output: skeeGrofskeeG
Your Task:
You don't need to read input or print anything. Your task is to complete the function reverse() which takes the string S as an input parameter and returns the reversed strin... | [
{
"code": null,
"e": 311,
"s": 238,
"text": "You are given a string S, the task is to reverse the string using stack."
},
{
"code": null,
"e": 324,
"s": 313,
"text": "Example 1:"
},
{
"code": null,
"e": 372,
"s": 324,
"text": "\nInput: S=\"GeeksforGeeks\"\nOut... |
Class getDeclaredConstructor() method in Java with Examples - GeeksforGeeks | 16 Dec, 2019
The getDeclaredConstructor() method of java.lang.Class class is used to get the specified constructor of this class with the specified parameter type. The method returns the specified constructor of this class in the form of Constructor object.
Syntax:
public Constructor<T>
getDeclaredConstructor(Cl... | [
{
"code": null,
"e": 23948,
"s": 23920,
"text": "\n16 Dec, 2019"
},
{
"code": null,
"e": 24193,
"s": 23948,
"text": "The getDeclaredConstructor() method of java.lang.Class class is used to get the specified constructor of this class with the specified parameter type. The method r... |
100% Stacked Column Chart | Following is an example of a 100% stacked bar chart. We've already seen the configuration used to draw this chart in Google Charts Configuration Syntax chapter. So, let's see the complete example.
We've used isStacked configuration to show stacked chart.
// Set chart options
var options = {
isStacked: 'percent'
};
g... | [
{
"code": null,
"e": 2458,
"s": 2261,
"text": "Following is an example of a 100% stacked bar chart. We've already seen the configuration used to draw this chart in Google Charts Configuration Syntax chapter. So, let's see the complete example."
},
{
"code": null,
"e": 2516,
"s": 2458... |
DAX Date & Time - EDATE function | Returns the date that is the indicated number of months before or after the start date.
EDATE (<start_date>, <month>)
start_date
A date that represents the start date.
It can be in datetime or text format.
months
An integer that represents the number of months before or after start_date.
If months is not an integer, ... | [
{
"code": null,
"e": 2089,
"s": 2001,
"text": "Returns the date that is the indicated number of months before or after the start date."
},
{
"code": null,
"e": 2121,
"s": 2089,
"text": "EDATE (<start_date>, <month>) \n"
},
{
"code": null,
"e": 2132,
"s": 2121,
... |
Create a paragraph element with some text and append it to end of document body using jQuery - GeeksforGeeks | 31 Dec, 2020
In this article, we will create a paragraph element with some text and append it to the end of the document body using jQuery. To append some text at the end of the document body, we use add() and appendTo() methods. The jQuery add() method is used to add elements to the existing group of elements. This me... | [
{
"code": null,
"e": 25461,
"s": 25433,
"text": "\n31 Dec, 2020"
},
{
"code": null,
"e": 25885,
"s": 25461,
"text": "In this article, we will create a paragraph element with some text and append it to the end of the document body using jQuery. To append some text at the end of th... |
Python | Pandas Timestamp.weekday - GeeksforGeeks | 21 Jan, 2019
Python is a great language for doing data analysis, primarily because of the fantastic ecosystem of data-centric python packages. Pandas is one of those packages and makes importing and analyzing data much easier.
Pandas Timestamp.weekday() function return the day of the week represented by the date in the... | [
{
"code": null,
"e": 24864,
"s": 24836,
"text": "\n21 Jan, 2019"
},
{
"code": null,
"e": 25078,
"s": 24864,
"text": "Python is a great language for doing data analysis, primarily because of the fantastic ecosystem of data-centric python packages. Pandas is one of those packages a... |
How to identify Japanese candlesticks patterns in Python | by Gianluca Malato | Towards Data Science | Japanese candlesticks are one of the most important tools for a discretionary or quantitative trader. They are the first example of a particular trading style called price action.
Let’s see what they are and how they can be used in Python.
Note from Towards Data Science’s editors: While we allow independent authors to ... | [
{
"code": null,
"e": 351,
"s": 171,
"text": "Japanese candlesticks are one of the most important tools for a discretionary or quantitative trader. They are the first example of a particular trading style called price action."
},
{
"code": null,
"e": 411,
"s": 351,
"text": "Let’s ... |
SQL - UNIQUE Constraint | The UNIQUE Constraint prevents two records from having identical values in a column. In the CUSTOMERS table, for example, you might want to prevent two or more people from having an identical age.
For example, the following SQL query creates a new table called CUSTOMERS and adds five columns. Here, the AGE column is se... | [
{
"code": null,
"e": 2650,
"s": 2453,
"text": "The UNIQUE Constraint prevents two records from having identical values in a column. In the CUSTOMERS table, for example, you might want to prevent two or more people from having an identical age."
},
{
"code": null,
"e": 2841,
"s": 2650... |
Master data visualization with ggplot2: theme() customization | by Abhinav Malasi | Towards Data Science | This is the last article from the series master the data visualization using the ggplot2 package. The complete list of tutorials are as follows:
Scatter and box plots (link)Histograms, Bar, and Density plots (link)Circular plots (pie charts, spider plots, and bar plots) (link)Theme(): customize to increase workflow
Sca... | [
{
"code": null,
"e": 317,
"s": 172,
"text": "This is the last article from the series master the data visualization using the ggplot2 package. The complete list of tutorials are as follows:"
},
{
"code": null,
"e": 489,
"s": 317,
"text": "Scatter and box plots (link)Histograms, B... |
Introducing Mito — How To Generate Pandas Code While Editing a Spreadsheet | by Dario Radečić | Towards Data Science | Disclaimer: This is not a sponsored article. I don’t have any affiliation with Mito or the creators of the library. The article shows an unbiased overview of the library, intending to make data science tools accessible to the broader masses.
The world of data science tools and libraries is becoming (or already is) satu... | [
{
"code": null,
"e": 414,
"s": 172,
"text": "Disclaimer: This is not a sponsored article. I don’t have any affiliation with Mito or the creators of the library. The article shows an unbiased overview of the library, intending to make data science tools accessible to the broader masses."
},
{
... |
You Want to Learn Rust but You Don’t Know Where to Start | by Shinichi Okada | Towards Data Science | Table of ContentsIntroduction🦀 Rust Toolchains🦀 Rust Free Online Books and Resources🦀 Rust Official Links🦀 Video Tutorials🦀 Podcast🦀 Interactive Learning🦀 Online Books & Tutorials🦀 Cheat Sheets🦀 Rust Community 🦀 Coding Challenge🦀 Rust IDE Extensions🦀 Rust Ecosystem🦀 Resource for Intermediate UsersConclusio... | [
{
"code": null,
"e": 481,
"s": 172,
"text": "Table of ContentsIntroduction🦀 Rust Toolchains🦀 Rust Free Online Books and Resources🦀 Rust Official Links🦀 Video Tutorials🦀 Podcast🦀 Interactive Learning🦀 Online Books & Tutorials🦀 Cheat Sheets🦀 Rust Community 🦀 Coding Challenge🦀 Rust IDE Exten... |
How to make Rounded buttons in Tkinter - GeeksforGeeks | 17 Dec, 2020
Tkinter is a Python module that is used to create GUI (Graphical User Interface) applications with the help of a variety of widgets and functions. Like any other GUI module, it also supports images i.e you can use images in the application to make it more attractive.
In this article, we will discuss How to... | [
{
"code": null,
"e": 23901,
"s": 23873,
"text": "\n17 Dec, 2020"
},
{
"code": null,
"e": 24169,
"s": 23901,
"text": "Tkinter is a Python module that is used to create GUI (Graphical User Interface) applications with the help of a variety of widgets and functions. Like any other G... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.