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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to get the most out of Canva?
What is the use of Canva?Canva is a versatile designing tool that helps you create compelling graphic designs or images. Entrepreneurs and small and large businesses use Canva as a designing tool for various purposes. It is a useful tool from social media managers and digital marketers to client success managers and media teams.The best thing about Canva is that it is beginner-friendly. You don't need to have skills or be a designer to use them for growing your business. Unlike photoshop, it helps you create graphic designs within minutes without extra expenses.What can you do using Canva?You can create ...
Read MoreWhat is Canva and what are its main features?
What is Canva?Canva is an online graphic designing tool with several functions and features that even beginners can use. It allows anyone to create fascinating designs for personal and professional use. It is specially made for people who are not graphic designers and who cannot invest in hefty amounts to get professional designs.Whether you are making a resume or designing an invitation card, this platform covers everything. For additional features, you can also get the paid version available.What can I design with Canva?You can use Canva for designing anything you need. You can create a custom design from scratch or ...
Read MoreHow can I scroll a web page using selenium webdriver in python?
Sometimes we need to perform action on an element which is not present in the viewable area of the page. We need to scroll down to the page in order to reach that element.Selenium cannot perform scrolling action directly. This can be achieved with the help of Javascript Executor and Actions class in Selenium. DOM can work on all elements on the web page with the help of Javascript.Selenium can execute commands in Javascript with the help of the execute_script() method. For the Javascript solution, we have to pass true value to the method scrollIntoView() to identify the object below ...
Read MoreHow to host a web-service using IIS (windows) and .net
A web service is any piece of software which offers service to other systems. It makes itself available over the internet and uses a standardized XML or, JSON messaging system. A web service enables communication among various applications by using open standards such as HTML, XML, WSDL, and SOAP.IISIIS stands for, Internet Information Services, it is a web service software create by Microsoft. It is available with the Windows (NT) operating systems, it supports HTTP, HTTP/2, HTTPS, FTP, FTPS, SMTP and NNTP.Here we are going to discuss how create and launch a web service locally and send request to it.Installing ...
Read MoreHow to convert numeric columns to factor using dplyr package in R?
If we have a numeric column in an R data frame and the unique number of values in the column is low that means the numerical column can be treated as a factor. Therefore, we can convert numeric columns to factor. To do this using dplyr package, we can use mutate_if function of dplyr package.Loading dplyr package and converting numerical columns in BOD data set (available in base R) to factor columns −Examplelibrary(dplyr) str(BOD) 'data.frame': 6 obs. of 2 variables: $ Time : num 1 2 3 4 5 7 $ demand: num 8.3 10.3 19 16 15.6 19.8 - ...
Read MoreHow to sort a column of data.table object in ascending order using column name stored in a vector in R?
Sorting a column of data.table object can be done easily with column number but sorting with column name is different. If a column name is stored in a vector and we want to sort a column of data.table object in ascending order using this name then order function will be used with single and double square brackets as shown in the below examples.Loading data.table package and creating a data.table object −Examplelibrary(data.table) x1
Read MoreHow to create an integer64 vector in R?
The integer64 vector contains vector values that represents signed integers with values that range from negative 9,223,372,036,854,775,808 to positive 9,223,372,036,854,775,807. To create an integer64 vector, we can use as.integer64 function of bit64 package. The difference between integer64 vector and others is that a large number of values can be stored in the vector.Examplelibrary(bit64) x1
Read MoreHow to fix the lower value for X-axis in base R
To fix the lower value for X-axis in base R, we can use xlim argument in plot function. Mostly, we set the lower value to zero but it is not necessary it can be something else, either less than zero or greater than zero as well. If only lower value needs to be fixed then upper value will be set by using the max function as shown in the below example.Examplex
Read MoreHow to create a boxplot with log of the variable in base R?
To create a boxplot with log of the variable in base R, we need to use log argument within the boxplot function but we need to carefully pass the Y-axis inside the function because the values of the boxplot are plotted on the Y-axis. For example, if we have a vector called x then the boxplot of log of x will be created as boxplot(x,log="y").Examplex
Read MoreHow to search a directory with file extensions in Java?
Following example prints the files in a directory based on the extensions −Exampleimport java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.util.stream.Stream; public class Demo { public static void main(String[] args) throws IOException { Stream path = Files.walk(Paths.get("D:\ExampleDirectory")); System.out.println("List of PDF files:"); path = path.filter(var -> var.toString().endsWith(".pdf")); path.forEach(System.out::println); path = Files.walk(Paths.get("D:\ExampleDirectory")); System.out.println("List of JPG files:"); path = path.filter(var -> var.toString().endsWith(".jpg")); path.forEach(System.out::println); path = Files.walk(Paths.get("D:\ExampleDirectory")); ...
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