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A Tutorial on Scraping Images from the Web Using BeautifulSoup | by Acusio Bivona | Towards Data Science | In the real world of data science, it’ll often be a task that we have to obtain some or all of our data. As much as we love to work with clean, organized datasets from Kaggle, that perfection is not always replicated in day-to-day tasks at work. That’s why knowing how to scrape data is a very valuable skill to possess,... | [
{
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"e": 636,
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"text": "In the real world of data science, it’ll often be a task that we have to obtain some or all of our data. As much as we love to work with clean, organized datasets from Kaggle, that perfection is not always replicated in day-to-day tasks at work. That’s wh... |
Java static method | The static keyword is used to create methods that will exist independently of any instances created for the class.
Static methods do not use any instance variables of any object of the class they are defined in. Static methods take all the data from parameters and compute something from those parameters, with no refere... | [
{
"code": null,
"e": 1177,
"s": 1062,
"text": "The static keyword is used to create methods that will exist independently of any instances created for the class."
},
{
"code": null,
"e": 1400,
"s": 1177,
"text": "Static methods do not use any instance variables of any object of t... |
Camel and Banana Puzzle | DP - GeeksforGeeks | 21 Oct, 2021
A person wants to transfer bananas over to a destination A km away. He initially has B bananas and a camel. The camel cannot carry more than C bananas at a time and eats a banana every km it travels. Given three integers A, B, and C, the task is to find the maximum number of bananas the person can transfer... | [
{
"code": null,
"e": 24281,
"s": 24253,
"text": "\n21 Oct, 2021"
},
{
"code": null,
"e": 24625,
"s": 24281,
"text": "A person wants to transfer bananas over to a destination A km away. He initially has B bananas and a camel. The camel cannot carry more than C bananas at a time an... |
Java Program to Find Area of circle Using Method Overloading - GeeksforGeeks | 04 Dec, 2020
A circle is a simple shape consisting of all the points in the plane that are equidistant from a point known as the center of the circle. In this article, we will learn how to find the area of the circle using the method overloading.
Terminology:
Method Overloading: Method overloading allows different meth... | [
{
"code": null,
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"s": 24354,
"text": "\n04 Dec, 2020"
},
{
"code": null,
"e": 24616,
"s": 24382,
"text": "A circle is a simple shape consisting of all the points in the plane that are equidistant from a point known as the center of the circle. In this article, we will ... |
C++ 'a.out' not recognised as a command | Having entered following command from linux terminal −
$ g++ helloworld.cpp
The a.out file should be created in the current working directory if the compilation is successful. Check if a.out is created.
To execute enter following from command line −
$ ./a.out
In most cases, output of your source program is displayed. H... | [
{
"code": null,
"e": 1117,
"s": 1062,
"text": "Having entered following command from linux terminal −"
},
{
"code": null,
"e": 1138,
"s": 1117,
"text": "$ g++ helloworld.cpp"
},
{
"code": null,
"e": 1265,
"s": 1138,
"text": "The a.out file should be created in... |
Convert PDF to Image in Python Using PyMuPDF | by Ednalyn C. De Dios | Towards Data Science | Recently, I was playing around with Amazon Textract when I ran into a little problem. Textract’s synchronous operation requires that the input document is in an image format. I had a bunch (hundreds) of PDFs to process; how was I supposed to convert each of them to PNGs without breaking a sweat?
PyMuPDF to the rescue!
... | [
{
"code": null,
"e": 468,
"s": 171,
"text": "Recently, I was playing around with Amazon Textract when I ran into a little problem. Textract’s synchronous operation requires that the input document is in an image format. I had a bunch (hundreds) of PDFs to process; how was I supposed to convert each ... |
Get the count of the number of documents in a MongoDB Collection? | To get the count of the number of documents in a collection MongoDB, you can use the below syntax −
db.getCollectionNames().map(function(anyVariableName) {
return { "yourVariableName": yourVariableName, "count": db[yourVariableName].count() }
});
Here, we are using ‘test’ database.
Let us implement the above syntax ... | [
{
"code": null,
"e": 1162,
"s": 1062,
"text": "To get the count of the number of documents in a collection MongoDB, you can use the below syntax −"
},
{
"code": null,
"e": 1312,
"s": 1162,
"text": "db.getCollectionNames().map(function(anyVariableName) {\n return { \"yourVariabl... |
How to get a particular date in Java 8? | The java.time package of Java provides API’s for dates, times, instances and durations. It provides various classes like Clock, LocalDate, LocalDateTime, LocalTime, MonthDay, Year, YearMonth, etc. Using classes of this package you can get details related to date and time in much simpler way compared to previous alterna... | [
{
"code": null,
"e": 1389,
"s": 1062,
"text": "The java.time package of Java provides API’s for dates, times, instances and durations. It provides various classes like Clock, LocalDate, LocalDateTime, LocalTime, MonthDay, Year, YearMonth, etc. Using classes of this package you can get details relate... |
How to catch TypeError Exception in Python? | TypeErrors are caused by combining the wrong type of objects, or calling a function with the wrong type of object.
import sys
try :
ny = 'Statue of Liberty'
my_list = [3, 4, 5, 8, 9]
print my_list + ny
except TypeError as e:
print e
print sys.exc_type
can only concatenate list (not ""str") to list
<type 'exceptions.Ty... | [
{
"code": null,
"e": 1177,
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"text": "TypeErrors are caused by combining the wrong type of objects, or calling a function with the wrong type of object."
},
{
"code": null,
"e": 1315,
"s": 1177,
"text": "import sys\ntry :\nny = 'Statue of Liberty'\nmy_list = [3, 4, 5, 8,... |
In 12 minutes: Stocks Analysis with Pandas and Scikit-Learn | by Vincent Tatan | Towards Data Science | One day, a friend of mine told me that the key to financial freedom is investing in stocks. While it is greatly true during the market boom, it still remains an attractive options today to trade stocks part time. Given the easy access to online trading platform, there are many self made value investors or housewife tra... | [
{
"code": null,
"e": 731,
"s": 172,
"text": "One day, a friend of mine told me that the key to financial freedom is investing in stocks. While it is greatly true during the market boom, it still remains an attractive options today to trade stocks part time. Given the easy access to online trading pl... |
An Introductory Example of Bayesian Optimization in Python with Hyperopt | by Will Koehrsen | Towards Data Science | Although finding the minimum of a function might seem mundane, it’s a critical problem that extends to many domains. For example, optimizing the hyperparameters of a machine learning model is just a minimization problem: it means searching for the hyperparameters with the lowest validation loss.
Bayesian optimization i... | [
{
"code": null,
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"text": "Although finding the minimum of a function might seem mundane, it’s a critical problem that extends to many domains. For example, optimizing the hyperparameters of a machine learning model is just a minimization problem: it means searching for the hyperpa... |
Function to add up all the natural numbers from 1 to num in JavaScript | We are required to write a JavaScript function that takes in a number, say num.
Then our function should return the sum of all the natural numbers between 1 and num, including 1 and num.
For example, if num is −
const num = 5;
Then the output should be −
const output = 15;
because,
1+2+3+4+5 = 15
We will use the below ... | [
{
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"text": "We are required to write a JavaScript function that takes in a number, say num."
},
{
"code": null,
"e": 1249,
"s": 1142,
"text": "Then our function should return the sum of all the natural numbers between 1 and num, including 1 and ... |
Can we change method signature in overriding in Java? | No, while overriding a method of the super class we need to make sure that both methods have same name, same parameters and, same return type else they both will be treated as different methods.
In short, if we change the signature, you cannot override the super class’s method if you try the method of the super class w... | [
{
"code": null,
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"text": "No, while overriding a method of the super class we need to make sure that both methods have same name, same parameters and, same return type else they both will be treated as different methods."
},
{
"code": null,
"e": 1399,
"s": 1257,
... |
How to enable or disable local user on Windows OS using PowerShell? | To disable the local user on the windows OS using PowerShell, we can use the Disable-Localuser command provided by the local user name. In the below example, we are going to disable the local user called TestUser.
Disable-LocalUser -Name TestUser
If we see the GUI, the user account is disabled.
To enable the above user... | [
{
"code": null,
"e": 1276,
"s": 1062,
"text": "To disable the local user on the windows OS using PowerShell, we can use the Disable-Localuser command provided by the local user name. In the below example, we are going to disable the local user called TestUser."
},
{
"code": null,
"e": 13... |
C library function - fputc() | The C library function int fputc(int char, FILE *stream) writes a character (an unsigned char) specified by the argument char to the specified stream and advances the position indicator for the stream.
Following is the declaration for fputc() function.
int fputc(int char, FILE *stream)
char − This is the character to b... | [
{
"code": null,
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"text": "The C library function int fputc(int char, FILE *stream) writes a character (an unsigned char) specified by the argument char to the specified stream and advances the position indicator for the stream."
},
{
"code": null,
"e": 2260,
"s":... |
How to Justify Text in TextView on Android? | This example demonstrates how to Justify Text in TextView on Android.
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"?>
<LinearLayout x... | [
{
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"text": "This example demonstrates how to Justify Text in TextView on Android."
},
{
"code": null,
"e": 1262,
"s": 1132,
"text": "Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to crea... |
PHP | MySQL ( Creating Table ) - GeeksforGeeks | 21 Mar, 2018
What is a table?In relational databases, and flat file databases, a table is a set of data elements using a model of vertical columns and horizontal rows, the cell being the unit where a row and column intersect. A table has a specified number of columns, but can have any number of rows.
Creating a MySQL T... | [
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"text": "\n21 Mar, 2018"
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"code": null,
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"text": "What is a table?In relational databases, and flat file databases, a table is a set of data elements using a model of vertical columns and horizontal rows, the cell... |
Associative Arrays in PHP - GeeksforGeeks | 31 Jul, 2021
Associative arrays are used to store key value pairs. For example, to store the marks of different subject of a student in an array, a numerically indexed array would not be the best choice. Instead, we could use the respective subject’s names as the keys in our associative array, and the value would be th... | [
{
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"text": "\n31 Jul, 2021"
},
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"code": null,
"e": 24788,
"s": 24452,
"text": "Associative arrays are used to store key value pairs. For example, to store the marks of different subject of a student in an array, a numerically indexed array wo... |
How to create Animated Blur Navbar using CSS? - GeeksforGeeks | 30 Sep, 2021
The Navbar is the main component of any website through which the user can navigate through all the components and sections of a site. That’s why it is really important to have a well-designed navigation bar or menu. So today we will be looking at a navbar in which all the elements get blur except the hove... | [
{
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"text": "\n30 Sep, 2021"
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"code": null,
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"text": "The Navbar is the main component of any website through which the user can navigate through all the components and sections of a site. That’s why it is really impo... |
How to calculate population variance in R? | There is no function in R to calculate the population variance but we can use the population size and sample variance to find it. We know that the divisor in population variance is the population size and if we multiply the output of var(it calculates sample variance) function with (population size – 1)/population size... | [
{
"code": null,
"e": 1428,
"s": 1062,
"text": "There is no function in R to calculate the population variance but we can use the population size and sample variance to find it. We know that the divisor in population variance is the population size and if we multiply the output of var(it calculates s... |
Check if X can give change to every person in the Queue - GeeksforGeeks | 27 May, 2021
Given an array of N integers where Ai denotes the currency of note that the i-th person has. The possible currencies are 5, 10, and 20. All the N people are standing in a queue waiting to buy an ice cream from X which costs Rs 5. Initially, X has an initial balance of 0. Check if X will be able to provide ... | [
{
"code": null,
"e": 24122,
"s": 24094,
"text": "\n27 May, 2021"
},
{
"code": null,
"e": 24485,
"s": 24122,
"text": "Given an array of N integers where Ai denotes the currency of note that the i-th person has. The possible currencies are 5, 10, and 20. All the N people are standi... |
3 Ways to Convert Python App into APK | by Kaustubh Gupta | Towards Data Science | In August 2020, I started a medium blog series called Building Android App in Python, where I explained the usage of Kivy and Kivymd. These libraries allow you to create cross-platform apps using Python. In that series, I described how android apps are configured in Python, it’s limitations, and various key elements th... | [
{
"code": null,
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"text": "In August 2020, I started a medium blog series called Building Android App in Python, where I explained the usage of Kivy and Kivymd. These libraries allow you to create cross-platform apps using Python. In that series, I described how android apps are co... |
C# Program to Print the Employees Whose ID is Greater Than 101 Using LINQ - GeeksforGeeks | 18 Oct, 2021
LINQ is known as Language Integrated Query and it is introduced in .NET 3.5. It gives the ability to .NET languages to generate queries to retrieve data from the data source. It removes the mismatch between programming languages and databases and the syntax used to create a query is the same no matter whic... | [
{
"code": null,
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"s": 24274,
"text": "\n18 Oct, 2021"
},
{
"code": null,
"e": 24732,
"s": 24302,
"text": "LINQ is known as Language Integrated Query and it is introduced in .NET 3.5. It gives the ability to .NET languages to generate queries to retrieve data from the d... |
How to add a number and a string in JavaScript? | In javascript , we can add a number and a number but if we try to add a number and a string then, as addition is not possible, 'concatenation' takes place.
In the following example, variables a,b,c and d are taken. For variable 'a', two numbers(5, 5) are added therefore it returned a number(10). But in case of variabl... | [
{
"code": null,
"e": 1218,
"s": 1062,
"text": "In javascript , we can add a number and a number but if we try to add a number and a string then, as addition is not possible, 'concatenation' takes place."
},
{
"code": null,
"e": 1612,
"s": 1218,
"text": "In the following example, ... |
How to crop the detected faces in OpenCV using C++? | We will know how to crop the detected faces in OpenCV. To crop detected faces, we need multiple matrices. The most appropriate way is to use an image array. In this program using the following two lines, we have declared two image matrices −
Mat cropped_faces[4];
Mat faceROI[4];
The first matrix is to store the cropped... | [
{
"code": null,
"e": 1304,
"s": 1062,
"text": "We will know how to crop the detected faces in OpenCV. To crop detected faces, we need multiple matrices. The most appropriate way is to use an image array. In this program using the following two lines, we have declared two image matrices −"
},
{
... |
Ruby | Methods | 06 May, 2022
Method is a collection of statements that perform some specific task and return the result. Methods are time savers and help the user to reuse the code without retyping the code. Defining & Calling the method: In Ruby, the method defines with the help of def keyword followed by method_name and end with end... | [
{
"code": null,
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"s": 25,
"text": "\n06 May, 2022"
},
{
"code": null,
"e": 569,
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"text": "Method is a collection of statements that perform some specific task and return the result. Methods are time savers and help the user to reuse the code without retyping the c... |
How to directly update a field by using ng-click in AngularJS ? | 10 Oct, 2019
Any field can be updated with ng-click using a custom JavaScript function. For this, we can make a clickable object in an HTML (usually a button) and attach a ng-click directive with it that calls this custom function. The ng-click Directive in AngluarJS is used to apply custom behavior when an element is ... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n10 Oct, 2019"
},
{
"code": null,
"e": 433,
"s": 28,
"text": "Any field can be updated with ng-click using a custom JavaScript function. For this, we can make a clickable object in an HTML (usually a button) and attach a ng-click directi... |
Setting file offsets in Python | 17 Sep, 2021
Prerequisite: seek(), tell()
Python makes it extremely easy to create/edit text files with a minimal amount of code required. To access a text file we have to create a filehandle that will make an offset at the beginning of the text file. Simply said, offset is the position of the read/write pointer within... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n17 Sep, 2021"
},
{
"code": null,
"e": 57,
"s": 28,
"text": "Prerequisite: seek(), tell()"
},
{
"code": null,
"e": 473,
"s": 57,
"text": "Python makes it extremely easy to create/edit text files with a minimal amount ... |
sciPy stats.gmean() function | Python | 19 Aug, 2021
scipy.stats.gmean(array, axis=0, dtype=None) calculates the geometric mean of the array elements along the specified axis of the array (list in python). It’s formula –
Parameters : array: Input array or object having the elements to calculate the geometric mean. axis: Axis along which the mean is to be... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n19 Aug, 2021"
},
{
"code": null,
"e": 198,
"s": 28,
"text": "scipy.stats.gmean(array, axis=0, dtype=None) calculates the geometric mean of the array elements along the specified axis of the array (list in python). It’s formula – "
},... |
Test Internet Speed using Python | 19 Feb, 2020
Prerequisites: Python Programming Language
Python is a high-level widely used general-purpose language. Python can be used for many tasks such as web development, machine learning, Gui applications. It can also be used for testing Internet speed. Python provides various libraries for doing the same. One su... | [
{
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"text": "\n19 Feb, 2020"
},
{
"code": null,
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"text": "Prerequisites: Python Programming Language"
},
{
"code": null,
"e": 480,
"s": 95,
"text": "Python is a high-level widely used general-purpose language. Pyt... |
Check if a given array contains duplicate elements within k distance from each other | 27 Jun, 2022
Given an unsorted array that may contain duplicates. Also given a number k which is smaller than size of array. Write a function that returns true if array contains duplicates within k distance.Examples:
Input: k = 3, arr[] = {1, 2, 3, 4, 1, 2, 3, 4}
Output: false
All duplicates are more than k distance a... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n27 Jun, 2022"
},
{
"code": null,
"e": 257,
"s": 52,
"text": "Given an unsorted array that may contain duplicates. Also given a number k which is smaller than size of array. Write a function that returns true if array contains duplicate... |
Using Plotly for Interactive Data Visualization in Python | 07 Dec, 2021
Plotly is an open-source module of Python which is used for data visualization and supports various graphs like line charts, scatter plots, bar charts, histograms, area plot, etc. In this article, we will see how to plot a basic chart with plotly and also how to make a plot interactive. But before starting... | [
{
"code": null,
"e": 54,
"s": 26,
"text": "\n07 Dec, 2021"
},
{
"code": null,
"e": 450,
"s": 54,
"text": "Plotly is an open-source module of Python which is used for data visualization and supports various graphs like line charts, scatter plots, bar charts, histograms, area plot,... |
URL Rewriting using Java Servlet | 13 Aug, 2018
Url rewriting is a process of appending or modifying any url structure while loading a page.
The request made by client is always a new request and the server can not identify whether the current request is send by a new client or the previous same client. Due to This property of HTTP protocol and Web Serv... | [
{
"code": null,
"e": 53,
"s": 25,
"text": "\n13 Aug, 2018"
},
{
"code": null,
"e": 146,
"s": 53,
"text": "Url rewriting is a process of appending or modifying any url structure while loading a page."
},
{
"code": null,
"e": 678,
"s": 146,
"text": "The request ... |
Maximum GCD among all pairs (i, j) of first N natural numbers | 20 Apr, 2021
Given a positive integer N > 1, the task is to find the maximum GCD among all the pairs (i, j) such that i < j < N.Examples:
Input: N = 3Output: 3Explanation:All the possible pairs are: (1, 2) (1, 3) (2, 3) with GCD 1.Input: N = 4Output: 2Explanation:Out of all the possible pairs the pair with max GCD is (... | [
{
"code": null,
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"text": "\n20 Apr, 2021"
},
{
"code": null,
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"text": "Given a positive integer N > 1, the task is to find the maximum GCD among all the pairs (i, j) such that i < j < N.Examples:"
},
{
"code": null,
"e": 357,
"s":... |
How to set vertical space between the list of items using CSS ? | 11 May, 2022
List of items in HTML can be of multiple type like ordered list, unordered list or could be description list. By default, there is a fixed vertical space between the list of items. We can increase or decrease the vertical spacing of the list of items by using different CSS properties. In this article, we w... | [
{
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"text": "\n11 May, 2022"
},
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"code": null,
"e": 420,
"s": 28,
"text": "List of items in HTML can be of multiple type like ordered list, unordered list or could be description list. By default, there is a fixed vertical space between the list of i... |
Python PySpark – DataFrame filter on multiple columns | 14 Sep, 2021
In this article, we are going to filter the dataframe on multiple columns by using filter() and where() function in Pyspark in Python.
Creating Dataframe for demonestration:
Python3
# importing moduleimport pyspark # importing sparksession from pyspark.sql modulefrom pyspark.sql import SparkSession # cre... | [
{
"code": null,
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"text": "\n14 Sep, 2021"
},
{
"code": null,
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"text": "In this article, we are going to filter the dataframe on multiple columns by using filter() and where() function in Pyspark in Python."
},
{
"code": null,
"e": 202... |
Global Variables in MS SQL Server | 19 Aug, 2020
Global variables are pre-defined system variables. It starts with @@. It provides information about the present user environment for SQL Server. SQL Server provides multiple global variables, which are very effective to use in Transact-SQL. The following are some frequently used global variables –
@@SERVER... | [
{
"code": null,
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"text": "\n19 Aug, 2020"
},
{
"code": null,
"e": 327,
"s": 28,
"text": "Global variables are pre-defined system variables. It starts with @@. It provides information about the present user environment for SQL Server. SQL Server provides multiple g... |
Python | Pandas dataframe.aggregate() | 19 Feb, 2021
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.
Dataframe.aggregate() function is used to apply some aggregation across one or more column. A... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n19 Feb, 2021"
},
{
"code": null,
"e": 266,
"s": 52,
"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 im... |
HTML | value Attribute | 30 Nov, 2021
The value attribute in HTML is used to specify the value of the element with which it is used. It has different meaning for different HTML elements.Usage: It can be used with the following elements: <input>, <button>, <meter>, <li>, <option>, <progress>, and <param>, <output>.
<input>: When the value attri... | [
{
"code": null,
"e": 53,
"s": 25,
"text": "\n30 Nov, 2021"
},
{
"code": null,
"e": 331,
"s": 53,
"text": "The value attribute in HTML is used to specify the value of the element with which it is used. It has different meaning for different HTML elements.Usage: It can be used with... |
Given GCD G and LCM L, find number of possible pairs (a, b) | Difficulty Level :
Medium
We need to find number of possible pairs (a, b) such that GCD(a, b) is equal to given G and LCM (a, b) such that LCM(a, b) is equal to given L.Examples:
Input : G = 2, L = 12
Output : 4
Explanation : There are 4 possible pairs :
(2, 12), (4, 6), (6, 4), (12, 2)
Input : G = 3, L = 6
Output... | [
{
"code": null,
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"text": "Difficulty Level :\nMedium"
},
{
"code": null,
"e": 181,
"s": 26,
"text": "We need to find number of possible pairs (a, b) such that GCD(a, b) is equal to given G and LCM (a, b) such that LCM(a, b) is equal to given L.Examples: "
},
... |
Print nodes at k distance from root | 16 Jun, 2022
Given a root of a tree, and an integer k. Print all the nodes which are at k distance from root. For example, in the below tree, 4, 5 & 8 are at distance 2 from root.
1
/ \
2 3
/ \ /
4 5 8
The problem can be solved using recursion. Thanks to eldho f... | [
{
"code": null,
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"s": 24,
"text": "\n16 Jun, 2022"
},
{
"code": null,
"e": 220,
"s": 52,
"text": "Given a root of a tree, and an integer k. Print all the nodes which are at k distance from root. For example, in the below tree, 4, 5 & 8 are at distance 2 from root. "
},
... |
Difference between hover() and mouseover() methods in jQuery - GeeksforGeeks | 01 Sep, 2021
Before learning the difference between the hover() and mouseover() method of jQuery, let’s briefly see both methods.
hover() Method: When we hover our mouse cursor to any element, two events happen i.e. mouseenter and mouseleave.
mouseenter: When we bring the cursor over the element.
mouseleave: When we re... | [
{
"code": null,
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"text": "\n01 Sep, 2021"
},
{
"code": null,
"e": 25486,
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"text": "Before learning the difference between the hover() and mouseover() method of jQuery, let’s briefly see both methods."
},
{
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"e": 25599,
... |
C# | CopyTo() Method - GeeksforGeeks | 31 Jan, 2019
In C#, CopyTo() method is a string method. It is used to copy a specified number of characters from a specified position in the string and it copies the characters of this string into a array of Unicode characters.
Syntax:
public void CopyTo(int sourceIndex, char[] destination,
int d... | [
{
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"text": "\n31 Jan, 2019"
},
{
"code": null,
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"text": "In C#, CopyTo() method is a string method. It is used to copy a specified number of characters from a specified position in the string and it copies the characters... |
Essential Programming | Control Structures | by Diego Lopez Yse | Towards Data Science | If you want to start programming, I must admit that the outlook is not good: different operating systems, so many programming languages, and endless ways of reaching the same results. These are the type of situations that will make you either run away (as fast and as far as you can, hoping you’ll never bump into progra... | [
{
"code": null,
"e": 856,
"s": 172,
"text": "If you want to start programming, I must admit that the outlook is not good: different operating systems, so many programming languages, and endless ways of reaching the same results. These are the type of situations that will make you either run away (as... |
Multicollinearity in Regression. Why it is a problem? How to track and... | by Songhao Wu | Towards Data Science | Multicollinearity happens when independent variables in the regression model are highly correlated to each other. It makes it hard to interpret of model and also creates an overfitting problem. It is a common assumption that people test before selecting the variables into the regression model.
I encountered a serious m... | [
{
"code": null,
"e": 467,
"s": 172,
"text": "Multicollinearity happens when independent variables in the regression model are highly correlated to each other. It makes it hard to interpret of model and also creates an overfitting problem. It is a common assumption that people test before selecting t... |
How to fetch elements with iterator in Java? | Let us first create a List and add elements −
List<String>list = Arrays.asList(new String[] { "P", "Q", "R", "S", "T", "U", "V", "W" });
Now, use Iterator to fetch each element −
Iterator<String>i = list.iterator();
Display the elements −
while (i.hasNext()) {
System.out.println(i.next());
}
Live Demo
import java.u... | [
{
"code": null,
"e": 1108,
"s": 1062,
"text": "Let us first create a List and add elements −"
},
{
"code": null,
"e": 1199,
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"text": "List<String>list = Arrays.asList(new String[] { \"P\", \"Q\", \"R\", \"S\", \"T\", \"U\", \"V\", \"W\" });"
},
{
"code": null,
... |
How to zoom-in and zoom-out image using JavaScript ? | 20 Sep, 2019
Given an image and the task is to increase and decrease the image size using JavaScript. Use the following property to increase and decrease the image.
Using Width property: It is used to change the new values to resize the width of the element.
Syntax:
object.style.width = "auto|length|%|initial|inherit"
... | [
{
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"text": "\n20 Sep, 2019"
},
{
"code": null,
"e": 180,
"s": 28,
"text": "Given an image and the task is to increase and decrease the image size using JavaScript. Use the following property to increase and decrease the image."
},
{
"code": n... |
Keras - Installation | This chapter explains about how to install Keras on your machine. Before moving to installation, let us go through the basic requirements of Keras.
You must satisfy the following requirements −
Any kind of OS (Windows, Linux or Mac)
Python version 3.5 or higher.
Keras is python based neural network library so python mu... | [
{
"code": null,
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"text": "This chapter explains about how to install Keras on your machine. Before moving to installation, let us go through the basic requirements of Keras."
},
{
"code": null,
"e": 2379,
"s": 2333,
"text": "You must satisfy the following req... |
Maximum length substring having all same characters after k changes | 23 Jun, 2022
We have a string of length n, which consist only UPPER and LOWER CASE characters and we have a number k (always less than n and greater than 0). We can make at most k changes in our string such that we can get a sub-string of maximum length which have all same characters.Examples:
n = length of string
k ... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n23 Jun, 2022"
},
{
"code": null,
"e": 336,
"s": 52,
"text": "We have a string of length n, which consist only UPPER and LOWER CASE characters and we have a number k (always less than n and greater than 0). We can make at most k changes... |
numpy.var() in Python | 03 Dec, 2018
numpy.var(arr, axis = None) : Compute the variance of the given data (array elements) along the specified axis(if any).
Example :
x = 1 1 1 1 1Standard Deviation = 0 . Variance = 0
y = 9, 2, 5, 4, 12, 7, 8, 11, 9, 3, 7, 4, 12, 5, 4, 10, 9, 6, 9, 4
Step 1 : Mean of distribution 4 = 7Step 2 : Summation of (x... | [
{
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"text": "\n03 Dec, 2018"
},
{
"code": null,
"e": 148,
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"text": "numpy.var(arr, axis = None) : Compute the variance of the given data (array elements) along the specified axis(if any)."
},
{
"code": null,
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"s": 148,... |
JavaScript Array includes() Method | 08 Jul, 2020
Below is the example of the Array includes() method.
Example:<script> var name = [ 'gfg', 'cse', 'geeks', 'portal' ]; a = name.includes('gfg') // Printing result of includes() document.write(a);</script>
<script> var name = [ 'gfg', 'cse', 'geeks', 'portal' ]; a = name.includes('gfg... | [
{
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"text": "\n08 Jul, 2020"
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{
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"text": "Below is the example of the Array includes() method."
},
{
"code": null,
"e": 273,
"s": 106,
"text": "Example:<script> var name = [ 'gfg', 'cse', 'geek... |
Groovy - File I/O | Groovy provides a number of helper methods when working with I/O. Groovy provides easier classes to provide the following functionalities for files.
Reading files
Writing to files
Traversing file trees
Reading and writing data objects to files
In addition to this, you can always use the normal Java classes listed below... | [
{
"code": null,
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"text": "Groovy provides a number of helper methods when working with I/O. Groovy provides easier classes to provide the following functionalities for files."
},
{
"code": null,
"e": 2535,
"s": 2521,
"text": "Reading files"
},
{
"code... |
How to set up and Run CUDA Operations in Pytorch ? | 18 Jul, 2021
CUDA(or Computer Unified Device Architecture) is a proprietary parallel computing platform and programming model from NVIDIA. Using the CUDA SDK, developers can utilize their NVIDIA GPUs(Graphics Processing Units), thus enabling them to bring in the power of GPU-based parallel processing instead of the usu... | [
{
"code": null,
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"s": 26,
"text": "\n18 Jul, 2021"
},
{
"code": null,
"e": 434,
"s": 54,
"text": "CUDA(or Computer Unified Device Architecture) is a proprietary parallel computing platform and programming model from NVIDIA. Using the CUDA SDK, developers can utilize their... |
Sign Convention for Spherical Mirrors | 07 Feb, 2022
While studying the reflection of light by spherical mirrors and the formation of images by spherical mirrors, a set of sign conventions are needed to learn that is required to measure the focal length, a distance of object or image from the mirror, and the magnification of the mirror.
Before, understanding... | [
{
"code": null,
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"text": "\n07 Feb, 2022"
},
{
"code": null,
"e": 340,
"s": 54,
"text": "While studying the reflection of light by spherical mirrors and the formation of images by spherical mirrors, a set of sign conventions are needed to learn that is required t... |
Matplotlib.axes.Axes.arrow() in Python | 13 Apr, 2020
Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The Axes Class contains most of the figure elements: Axis, Tick, Line2D, Text, Polygon, etc., and sets the coordinate system. And the instances of Axes supports callbacks through a callbacks attribute.
The Axe... | [
{
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},
{
"code": null,
"e": 328,
"s": 28,
"text": "Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The Axes Class contains most of the figure elements: Axis, Tick, Line2D, Text... |
Groovy - Environment | There are a variety of ways to get the Groovy environment setup.
Binary download and installation − Go to the link www.groovy-lang.org/download.html to get the Windows Installer section. Click on this option to start the download of the Groovy installer.
Once you launch the installer, follow the steps given below to c... | [
{
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"text": "There are a variety of ways to get the Groovy environment setup."
},
{
"code": null,
"e": 2628,
"s": 2437,
"text": "Binary download and installation − Go to the link www.groovy-lang.org/download.html to get the Windows Installer sec... |
Bootstrap 4 | Forms | 12 May, 2022
Form Layout: Bootstrap provides two types of form layout which are listed below:
Stacked form
Inline form
Stacked form: The stacked form creates input field and submit button in stacked format. Example:
HTML
<!DOCTYPE html><html lang="en"><head> <title>Bootstrap Form</title> <meta charset="utf-8"> ... | [
{
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{
"code": null,
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"text": "Form Layout: Bootstrap provides two types of form layout which are listed below: "
},
{
"code": null,
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"text": "Stacked form"
},
{
... |
matplotlib.pyplot.nipy_spectral() in Python | 22 Apr, 2020
Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. Pyplot is a state-based interface to a Matplotlib module which provides a MATLAB-like interface.
The nipy_spectral() function in pyplot module of matplotlib library is used to set the colormap to “nipy_spectra... | [
{
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"text": "\n22 Apr, 2020"
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{
"code": null,
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"text": "Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. Pyplot is a state-based interface to a Matplotlib module which provides a MAT... |
Program to find Simple Interest and Compound Interest in PL/SQL | 02 Jul, 2018
Prerequisite – PL/SQL introduction
In PL/SQL code groups of commands are arranged within a block. A block group related declarations or statements. In declare part, we declare variables and between begin and end part, we perform the operations.
Given principal(p), rate(r), time(t), the task is to calculate... | [
{
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{
"code": null,
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"text": "Prerequisite – PL/SQL introduction"
},
{
"code": null,
"e": 273,
"s": 63,
"text": "In PL/SQL code groups of commands are arranged within a block. A block gr... |
Java Program to Check Whether Undirected Graph is Connected Using DFS | 02 Feb, 2021
Given an undirected graph, the task is to check if the given graph is connected or not using DFS.
A connected graph is a graph that is connected in the sense of a topological space, i.e., there is always a path from any node to any other node in the graph. A graph that is not connected is said to be discon... | [
{
"code": null,
"e": 54,
"s": 26,
"text": "\n02 Feb, 2021"
},
{
"code": null,
"e": 152,
"s": 54,
"text": "Given an undirected graph, the task is to check if the given graph is connected or not using DFS."
},
{
"code": null,
"e": 369,
"s": 152,
"text": "A conne... |
HTML | DOM Location hash Property | 05 Jul, 2022
The Location Hash property in HTML is used to return the anchor part of a URL. It can also be used to set the anchor part of the URL. It returns the string which represents the anchor part of a URL including the hash ‘#’ sign.Syntax:
It returns the hash property.
location.hash
It is used to set the has... | [
{
"code": null,
"e": 53,
"s": 25,
"text": "\n05 Jul, 2022"
},
{
"code": null,
"e": 289,
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"text": "The Location Hash property in HTML is used to return the anchor part of a URL. It can also be used to set the anchor part of the URL. It returns the string which represents t... |
Implementing Web Scraping in Python with Scrapy | 08 Nov, 2019
Nowadays data is everything and if someone wants to get data from webpages then one way to use an API or implement Web Scraping techniques. In Python, Web scraping can be done easily by using scraping tools like BeautifulSoup. But what if the user is concerned about performance of scraper or need to scrape... | [
{
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"text": "\n08 Nov, 2019"
},
{
"code": null,
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"text": "Nowadays data is everything and if someone wants to get data from webpages then one way to use an API or implement Web Scraping techniques. In Python, Web scraping can be done... |
C Sharp with Selenium - How to Switch one tab to another tab in Csharp Selenium? | We can switch one tab to another tab with Selenium webdriver in C#.
Sometimes on clicking a link or a button, we can have multiple tabs opened in the same browser.
By default, the webdriver can access only the parent tab. To access the second tab, we have to switch the driver focus with the help of the SwitchTo().Windo... | [
{
"code": null,
"e": 1255,
"s": 1187,
"text": "We can switch one tab to another tab with Selenium webdriver in C#."
},
{
"code": null,
"e": 1351,
"s": 1255,
"text": "Sometimes on clicking a link or a button, we can have multiple tabs opened in the same browser."
},
{
"cod... |
DateTime.ToShortDateString() Method in C# | 30 Jan, 2019
This method is used to convert the value of the current DateTime object to its equivalent short date string representation.
Syntax: public string ToShortDateString ();
Return Value: This method returns a string that contains the short date string representation of the current DateTime object.
Below program... | [
{
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"text": "\n30 Jan, 2019"
},
{
"code": null,
"e": 152,
"s": 28,
"text": "This method is used to convert the value of the current DateTime object to its equivalent short date string representation."
},
{
"code": null,
"e": 196,
"s": ... |
Python | Pandas isnull() and notnull() | 08 Jun, 2022
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.While making a Data Frame from a csv file, many blank columns are imported as null value into ... | [
{
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"text": "\n08 Jun, 2022"
},
{
"code": null,
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"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... |
Shell Script to Join a String | 25 Mar, 2021
There are different ways to concatenate strings in the shell. Some of them are listed below. String concatenation is used in shell scripting to make it much easier for the user to understand and use the program. Appending strings also allow the programmer to learn the working of concatenation on the shell.... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n25 Mar, 2021"
},
{
"code": null,
"e": 337,
"s": 28,
"text": "There are different ways to concatenate strings in the shell. Some of them are listed below. String concatenation is used in shell scripting to make it much easier for the use... |
Python | Remove duplicates from nested list | 15 Apr, 2019
The task of removing duplicates many times in recent past, but sometimes when we deal with the complex data structure, in those cases we need different techniques to handle this type of problem. Let’s discuss certain ways in which this task can be achieved.
Method #1 : Using sorted() + set()This particular... | [
{
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},
{
"code": null,
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"text": "The task of removing duplicates many times in recent past, but sometimes when we deal with the complex data structure, in those cases we need different techniques to handle th... |
fgrep command in Linux with examples | 11 Oct, 2021
The fgrep filter is used to search for the fixed-character strings in a file. There can be multiple files also to be searched. This command is useful when you need to search for strings which contain lots of regular expression metacharacters, such as “^”, “$”, etc.
Syntax:
fgrep [options] [ -e pattern_list... | [
{
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},
{
"code": null,
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"text": "The fgrep filter is used to search for the fixed-character strings in a file. There can be multiple files also to be searched. This command is useful when you need to search ... |
How to Easily Set Up Python on Any M1 Mac | by Frank Andrade | Towards Data Science | After buying an M1 Mac, I realized how confusing is to properly set up Python with all data science packages (and non-data science packages) on the new Mac models.
According to this long Anaconda guide to the Apple Silicon, there are 3 options for running Python on the M1 — pyenv, anaconda, and miniforge.
In this guide... | [
{
"code": null,
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},
{
"code": null,
"e": 479,
"s": 336,
"text": "According to this long... |
How to set ringtone in Android from Android activity? | This example demonstrates how do I set ringtone in android from android activity.
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"?>
<Rela... | [
{
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"text": "This example demonstrates how do I set ringtone in android from android activity."
},
{
"code": null,
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"text": "Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required deta... |
Get the fully-qualified name of an inner class in Java | A fully-qualified class name in Java contains the package that the class originated from. Also, an inner class is a class that is another class member. So, the fully-qualified name of an inner class can be obtained using the getName() method.
A program that demonstrates this is given as follows −
Live Demo
public clas... | [
{
"code": null,
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"text": "A fully-qualified class name in Java contains the package that the class originated from. Also, an inner class is a class that is another class member. So, the fully-qualified name of an inner class can be obtained using the getName() method."
},
{
... |
HTML DOM Style backgroundColor Property | The backgroundColor property is used for setting or returning background color for an element. We can specify values by standard names, rgb(), rgba(), hsl() or hsla().
Following is the syntax for −
Setting the backgroundColor property −
object.style.backgroundColor = "color|transparent
The above property values are exp... | [
{
"code": null,
"e": 1230,
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"text": "The backgroundColor property is used for setting or returning background color for an element. We can specify values by standard names, rgb(), rgba(), hsl() or hsla()."
},
{
"code": null,
"e": 1260,
"s": 1230,
"text": "Following is t... |
Prediction Intervals in Linear Regression | by Nathan Maton | Towards Data Science | This post covers how to calculate prediction intervals for Linear Regression. Normally when modeling, we get a single value from a regression model. But what if that value is used to plan or make important decisions?
Then a single value may overstate our confidence when we’d like to know our uncertainty or error margin... | [
{
"code": null,
"e": 389,
"s": 172,
"text": "This post covers how to calculate prediction intervals for Linear Regression. Normally when modeling, we get a single value from a regression model. But what if that value is used to plan or make important decisions?"
},
{
"code": null,
"e": 9... |
JSON Formatting in Python | The JSON (Java Script Object Notation) is light weight, well accepted data interchange format. Using JSON formatting techniques in Python, we can convert JSON strings to Python objects, and also convert Python Objects to JSON strings.
To use these functionalities, we need to use the json module of Python. The json modu... | [
{
"code": null,
"e": 1297,
"s": 1062,
"text": "The JSON (Java Script Object Notation) is light weight, well accepted data interchange format. Using JSON formatting techniques in Python, we can convert JSON strings to Python objects, and also convert Python Objects to JSON strings."
},
{
"cod... |
ER and Relational Models - GeeksforGeeks | 09 Oct, 2019
Students(rollno: integer, sname: string)
Courses(courseno: integer, cname: string)
Registration(rollno: integer, courseno: integer, percent: real)
"Find the distinct names of all students who score
more than 90% in the course numbered 107"
Option A:
This is a SQL query expression... | [
{
"code": null,
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"s": 29572,
"text": "\n09 Oct, 2019"
},
{
"code": null,
"e": 29759,
"s": 29600,
"text": " Students(rollno: integer, sname: string)\n Courses(courseno: integer, cname: string)\n Registration(rollno: integer, courseno: integer, percent: real)"
... |
How to Test your Broadband Speed from Linux Terminal | To install speed test CLI command line, it should require Python ppi. Use the following command to install Python ppi .
$ sudo apt-get install python-pip
The sample output should be like this –
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no long... | [
{
"code": null,
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"text": "To install speed test CLI command line, it should require Python ppi. Use the following command to install Python ppi ."
},
{
"code": null,
"e": 1216,
"s": 1182,
"text": "$ sudo apt-get install python-pip"
},
{
"code": null,
... |
JSP - Environment Setup | A development environment is where you would develop your JSP programs, test them and finally run them.
This tutorial will guide you to setup your JSP development environment which involves the following steps −
This step involves downloading an implementation of the Java Software Development Kit (SDK) and setting up t... | [
{
"code": null,
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"text": "A development environment is where you would develop your JSP programs, test them and finally run them."
},
{
"code": null,
"e": 2451,
"s": 2343,
"text": "This tutorial will guide you to setup your JSP development environment which i... |
C# Object Creation of Inherited Class | A class can be derived from more than one class or interface, which means that it can inherit data and functions from multiple base classes or interfaces.
The derived class inherits the base class member variables and member methods. Therefore, the super class object should be created before the subclass is created. Yo... | [
{
"code": null,
"e": 1217,
"s": 1062,
"text": "A class can be derived from more than one class or interface, which means that it can inherit data and functions from multiple base classes or interfaces."
},
{
"code": null,
"e": 1471,
"s": 1217,
"text": "The derived class inherits ... |
HTTP headers | Access-Control-Allow-Headers. - GeeksforGeeks | 19 Nov, 2019
The HTTP Access-Control-Allow-Headers header is a response-type header that is used to indicate the HTTP headers. It can be used during a request and is used in response to a CORS preflight request, that checks to see if the CORS protocol is understood and a server is aware using specific methods and heade... | [
{
"code": null,
"e": 24191,
"s": 24163,
"text": "\n19 Nov, 2019"
},
{
"code": null,
"e": 24565,
"s": 24191,
"text": "The HTTP Access-Control-Allow-Headers header is a response-type header that is used to indicate the HTTP headers. It can be used during a request and is used in re... |
A Quick Introduction to Google Earth Engine | by Willy Hagi | Towards Data Science | Google Earth Engine (GEE) is a platform for cloud-based geospatial applications with tons of data from satellites, including the ones from the famous Landsat program to several climate datasets. The best thing is that the platform is available to anyone with enough interest and a relatively decent internet connection, ... | [
{
"code": null,
"e": 581,
"s": 172,
"text": "Google Earth Engine (GEE) is a platform for cloud-based geospatial applications with tons of data from satellites, including the ones from the famous Landsat program to several climate datasets. The best thing is that the platform is available to anyone w... |
Set find() function in C++ programming STL | In this article we are going to discuss the set::find() function in C++ STL, their syntax, working and their return values.
Sets in C++ STL are the containers which must have unique elements in a general order. Sets must have unique elements because the value of the element identifies the element. Once added a value in... | [
{
"code": null,
"e": 1186,
"s": 1062,
"text": "In this article we are going to discuss the set::find() function in C++ STL, their syntax, working and their return values."
},
{
"code": null,
"e": 1521,
"s": 1186,
"text": "Sets in C++ STL are the containers which must have unique ... |
Node.js http.server.keepAliveTimeout Property - GeeksforGeeks | 20 Jan, 2021
The http.server.keepAliveTimeout is an inbuilt application programming interface of class Server within http module which is used to get the number of milliseconds of inactivity a server needs to wait for additional incoming data.
Syntax:
server.keepAliveTimeout
Parameters: This Api does not accept any arg... | [
{
"code": null,
"e": 24842,
"s": 24814,
"text": "\n20 Jan, 2021"
},
{
"code": null,
"e": 25073,
"s": 24842,
"text": "The http.server.keepAliveTimeout is an inbuilt application programming interface of class Server within http module which is used to get the number of milliseconds... |
Access to file download dialog in Firefox in Selenium. | We can access file download dialog in Firefox in Selenium. For this we have to first modify the default directory where the downloaded file gets stored. This is done by the addpreference method.
p.addPreference("browser.download.folderList", 2);
Then, define the new path of the download directory.
Finally, we shall ign... | [
{
"code": null,
"e": 1257,
"s": 1062,
"text": "We can access file download dialog in Firefox in Selenium. For this we have to first modify the default directory where the downloaded file gets stored. This is done by the addpreference method."
},
{
"code": null,
"e": 1308,
"s": 1257,
... |
MEX of generated sequence of N+1 integers where ith integer is XOR of (i-1) and K - GeeksforGeeks | 07 Jan, 2022
Given two integers N and K, generate a sequence of size N+1 where the ith element is (i-1)⊕K, the task is to find the MEX of this sequence. Here, the MEX of a sequence is the smallest non-negative integer that does not occur in the sequence.
Examples:
Input: N = 7, K=3Output: 8Explanation: Sequence formed ... | [
{
"code": null,
"e": 26047,
"s": 26019,
"text": "\n07 Jan, 2022"
},
{
"code": null,
"e": 26289,
"s": 26047,
"text": "Given two integers N and K, generate a sequence of size N+1 where the ith element is (i-1)⊕K, the task is to find the MEX of this sequence. Here, the MEX of a sequ... |
Cropping Faces from Images using OpenCV - Python - GeeksforGeeks | 13 Jan, 2021
Opencv is a python library mainly used for image processing and computer vision. In this article first, we detect faces after that we crop the face from the image. Face detection is the branch of image processing that uses to detect faces.
We will use a pre-trained Haar Cascade model to detect faces from t... | [
{
"code": null,
"e": 24141,
"s": 24113,
"text": "\n13 Jan, 2021"
},
{
"code": null,
"e": 24381,
"s": 24141,
"text": "Opencv is a python library mainly used for image processing and computer vision. In this article first, we detect faces after that we crop the face from the image.... |
Difference Between Constructor and Destructor in C++ - GeeksforGeeks | 29 Dec, 2021
Constructor: A constructor is a member function of a class that has the same name as the class name. It helps to initialize the object of a class. It can either accept the arguments or not. It is used to allocate the memory to an object of the class. It is called whenever an instance of the class is create... | [
{
"code": null,
"e": 24122,
"s": 24094,
"text": "\n29 Dec, 2021"
},
{
"code": null,
"e": 24699,
"s": 24122,
"text": "Constructor: A constructor is a member function of a class that has the same name as the class name. It helps to initialize the object of a class. It can either ac... |
How to Use Reserved Words as Column Names in SQL? - GeeksforGeeks | 28 Oct, 2021
In SQL, certain words are reserved. These are called Keywords or Reserved Words. These words cannot be used as identifiers i.e. as column names in SQL. But, there is an exception to this rule too. In this article, we will discuss how to use Reserved Words as column names in SQL. For this article, we will b... | [
{
"code": null,
"e": 25649,
"s": 25621,
"text": "\n28 Oct, 2021"
},
{
"code": null,
"e": 26006,
"s": 25649,
"text": "In SQL, certain words are reserved. These are called Keywords or Reserved Words. These words cannot be used as identifiers i.e. as column names in SQL. But, there ... |
Comparing Python and SQL for Building Data Pipelines | by Marc Laforet | Towards Data Science | Breaking into the workforce as a web developer, my first interaction with databases and SQL was using an Object Relational Model (ORM). I was using the Django query sets API and had an excellent experience using the interface. Thereon-after, I changed to a data engineering role and became much more involved in leveragi... | [
{
"code": null,
"e": 675,
"s": 172,
"text": "Breaking into the workforce as a web developer, my first interaction with databases and SQL was using an Object Relational Model (ORM). I was using the Django query sets API and had an excellent experience using the interface. Thereon-after, I changed to ... |
How to convert a matrix to a data frame with column names and row names as new columns in R? | Sometimes we want to create a factor column of the column names and row names of a matrix so that we can use them in the analysis. It is required in situations where we want to know the effect of factor variables on the response and the factor variables were recorded as column names and row names in a matrix. To do thi... | [
{
"code": null,
"e": 1473,
"s": 1062,
"text": "Sometimes we want to create a factor column of the column names and row names of a matrix so that we can use them in the analysis. It is required in situations where we want to know the effect of factor variables on the response and the factor variables... |
Dart Programming - floor Method | This method returns the largest integer less than or equal to a number.
Number.floor()
Returns the largest integer less than or equal to a number x.
void main() {
var a = 2.9;
print("The floor value of 2.9 = ${a.floor()}");
}
It will produce the following output −.
The floor value of 2.9 = 2
44 Lecture... | [
{
"code": null,
"e": 2597,
"s": 2525,
"text": "This method returns the largest integer less than or equal to a number."
},
{
"code": null,
"e": 2613,
"s": 2597,
"text": "Number.floor()\n"
},
{
"code": null,
"e": 2675,
"s": 2613,
"text": "Returns the largest in... |
Spring - Environment Setup | This chapter will guide you on how to prepare a development environment to start your work with Spring Framework. It will also teach you how to set up JDK, Tomcat and Eclipse on your machine before you set up Spring Framework −
You can download the latest version of SDK from Oracle's Java site − Java SE Downloads. You ... | [
{
"code": null,
"e": 2520,
"s": 2292,
"text": "This chapter will guide you on how to prepare a development environment to start your work with Spring Framework. It will also teach you how to set up JDK, Tomcat and Eclipse on your machine before you set up Spring Framework −"
},
{
"code": nul... |
How to Use Transformers in TensorFlow | Towards Data Science | Transformers are, without a doubt, one of the biggest advances in NLP in the past decade. They have (quite fittingly) transformed the landscape of language-based ML.
Despite this, there are no built-in implementations of transformer models in the core TensorFlow or PyTorch frameworks. To use them, you either need to ap... | [
{
"code": null,
"e": 338,
"s": 172,
"text": "Transformers are, without a doubt, one of the biggest advances in NLP in the past decade. They have (quite fittingly) transformed the landscape of language-based ML."
},
{
"code": null,
"e": 596,
"s": 338,
"text": "Despite this, there ... |
Find the average of k digits from the beginning and l digits from the end of the given number - GeeksforGeeks | 26 Mar, 2021
Given three integers N, K and L. The task is to find the average of the first K digits and the last L digits of the given number N without any digit overlapping.Examples:
Input: N = 123456, K = 2, L = 3 Output: 3.0 Sum of first K digits will be 1 + 2 = 3 Sum of last L digits will be 4 + 5 + 6 = 15 Averag... | [
{
"code": null,
"e": 24692,
"s": 24664,
"text": "\n26 Mar, 2021"
},
{
"code": null,
"e": 24865,
"s": 24692,
"text": "Given three integers N, K and L. The task is to find the average of the first K digits and the last L digits of the given number N without any digit overlapping.Ex... |
Python Functions creating iterators for efficient looping | As in most programming languages Python provides while and for statements to form a looping construct. The for statement is especially useful to traverse the iterables like list, tuple or string. More efficient and fast iteration tools are defined in itertools module of Python’s standard library. These iterator buildin... | [
{
"code": null,
"e": 1498,
"s": 1062,
"text": "As in most programming languages Python provides while and for statements to form a looping construct. The for statement is especially useful to traverse the iterables like list, tuple or string. More efficient and fast iteration tools are defined in it... |
Elm - Package Manager | A package manager is a command-line tool that automates the process of installing, upgrading, configuring, and removing packages in your application.
Just like JavaScript has a package manager called npm, elm has a package manager called elm-package.
The package manager performs the following three tasks −
Installs all... | [
{
"code": null,
"e": 2030,
"s": 1880,
"text": "A package manager is a command-line tool that automates the process of installing, upgrading, configuring, and removing packages in your application."
},
{
"code": null,
"e": 2131,
"s": 2030,
"text": "Just like JavaScript has a packa... |
Dynamic UI in Shiny (incl. demo app) | by Thomas Filaire | Towards Data Science | Shiny has become an extremely popular solution to build interactive web apps straight from R. So popular that most data & analytics teams in companies have adopted this framework as part of their toolkit.
However, R Shiny is often said to be a good framework for fast prototyping, but not robust enough for industrialize... | [
{
"code": null,
"e": 252,
"s": 47,
"text": "Shiny has become an extremely popular solution to build interactive web apps straight from R. So popular that most data & analytics teams in companies have adopted this framework as part of their toolkit."
},
{
"code": null,
"e": 414,
"s": ... |
C# | Capacity of a List - GeeksforGeeks | 01 Feb, 2019
List<T>.Capacity Property is used to gets or sets the total number of elements the internal data structure can hold without resizing.
Properties of List:
It is different from the arrays. A list can be resized dynamically but arrays cannot.
List class can accept null as a valid value for reference types and... | [
{
"code": null,
"e": 24090,
"s": 24062,
"text": "\n01 Feb, 2019"
},
{
"code": null,
"e": 24224,
"s": 24090,
"text": "List<T>.Capacity Property is used to gets or sets the total number of elements the internal data structure can hold without resizing."
},
{
"code": null,
... |
FuelPHP - Complete Working Example | In this chapter, we will learn how to create a complete MVC based BookStore application in FuelPHP.
Create a new project named “BookStore” in FuelPHP using the following command.
oil create bookstore
Create a new layout for our application. Create a file, layout.php at location fuel/app/views/layout.php. The code is a... | [
{
"code": null,
"e": 2309,
"s": 2209,
"text": "In this chapter, we will learn how to create a complete MVC based BookStore application in FuelPHP."
},
{
"code": null,
"e": 2388,
"s": 2309,
"text": "Create a new project named “BookStore” in FuelPHP using the following command."
... |
C++ Program to find whether a number is the power of two? | Check if a given number is a power of 2. First check below which numbers are the power of two or not. This code checks whether the number is odd and then divide it concurrently until it becomes 0 or odd. If it becomes 0 then it is a power 2 else it is not.
A better choice is to take the log of the number. If it is an i... | [
{
"code": null,
"e": 1319,
"s": 1062,
"text": "Check if a given number is a power of 2. First check below which numbers are the power of two or not. This code checks whether the number is odd and then divide it concurrently until it becomes 0 or odd. If it becomes 0 then it is a power 2 else it is n... |
Access objects from the nested objects structure in MongoDB | Access objects using dot notation. Let us first create a collection with documents
> db.nestedObjectDemo.insertOne({"Student" : { "StudentDetails" : { "StudentPersonalDetails" : { "StudentName" : [ "John" ],
... "StudentCountryName" : [ "US" ],
... "StudentCoreSubject" : [ "C", "Java" ],
... "StudentProject" : [ "Onlin... | [
{
"code": null,
"e": 1145,
"s": 1062,
"text": "Access objects using dot notation. Let us first create a collection with documents"
},
{
"code": null,
"e": 1510,
"s": 1145,
"text": "> db.nestedObjectDemo.insertOne({\"Student\" : { \"StudentDetails\" : { \"StudentPersonalDetails\" ... |
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