Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Introduction A common statistical method used in many fields of data analysis and machine learning is principal component analysis (PCA). By transferring a dataset to a lower-dimensional space while retaining the majority of the original variables, it is frequently used to decrease the dimensionality of a dataset. The choice of the coordinate system, however, can significantly affect the outcomes of PCA. The idea of rotation enters the picture at this point. We may more clearly comprehend the underlying structure of the data and enhance the results' interpretability by rotating the coordinate system. We will examine the value of rotation in ... Read More
Introduction Data points that stand out from the bulk of other data points in a dataset are known as outliers. They can distort statistical measurements and obscure underlying trends in the data, which can have a detrimental effect on data analysis, modeling, and visualization. Therefore, before beginning any study, it is crucial to recognize and handle outliers. In this post, we'll look at different methods for dealing with outliers as well as how to check for them. Screening for Outliers We must first recognize outliers in order to deal with them. Here are a few popular techniques for identifying outliers ... Read More
A linked list is a data structure that consists of a sequence of elements, each of which contains a reference (or "link") to the next element in the sequence. The first element is called the head and the last element is called the tail. Linked lists have many advantages over other data structures. Now we shall look at how to implement Linked list using JavaScript. Defining the Node Class and the LinkedList class This is basically the prerequisite in order to implement a linked list in JavaScript. In this step, 2 classes namely one for the nodes and the other ... Read More
Encrypting is the task of transforming information into an unreadable format or cipher text. It is usually done to protect the confidentiality of information. There are many ways and algorithms to encrypt data. One such example is the Playfair cipher algorithm. In this article, we are going to see how to write a Java program to encode a message using Playfair cipher. Playfair cipher makes use of a 5X5 grid or matrix and a set of pre-defined rules. To encrypt, we require a key and the plain text to be encrypted. Steps Now let us see the steps to encrypt ... Read More
A subheading is a text element used to organize and structure the content of a webpage in HTML. Subheadings are commonly used to break up large blocks of text and provide a clear hierarchy of information for users. Subheadings are mostly created using the "H2", "H3", "H4", "H5", or "H6" tags in HTML. These tags indicate the level of the heading, with H1 being the highest level heading and H6 being the lowest level subheading. Adding sub heading using HTML HTML is a markup language used to structure and format content on the web page. One of the important aspect ... Read More
CSS (Cascading Style Sheets) is a powerful tool for controlling the layout and appearance of text on a website. In this article we will learn how to change the cases of text in paragraphs using CSS. When it comes to styling text on a website, one of the basic and common styling options is changing the case of the text, and we can do this easily with the text-transform property in CSS. The text-transform property can take one of the following values − "capitalize" will capitalize the first letter of each word in the selected element. "uppercase" will ... Read More
Insertion of a specific character after every n characters in Javascript is an easy to understand concept and gives us a better understanding about Javascript's functions. Here n can be any whole number ranging from 1 to less than the length of the string. In this article we will deal with a variable inputString = "abcdefghijklmnopqrstuvwxyz, " and aim to append a "-" character after every 5 characters. There are several ways to accomplish this with JavaScript, which are as follows − Making use of the slice() method In JavaScript, the slice() function is used to extract a portion of ... Read More
In this article, we are going to discuss how to increment a given date using JavaScript. First, we will analyse and understand what is meant by this. Given a certain date x = “05-02-2023”, we want to add y = 7 days to this date and print the resulting date which is “12-02-2023”. As a human we can manually add 7 days to 5th February and get the resultant. But we need JavaScript to do this programmatically for us. There are few techniques to do so which we shall be discussing in this article. Using addDays() function The addDays function ... Read More
Pet astrology typically follows the same zodiac system used for humans based on the sun's position at birth. Each sign is associated with certain qualities and tendencies, such as Aries being known for their energy and independence and Taurus for their loyalty and love of comfort. Pet Astrology Pet astrology uses a pet's birth date and time to determine its astrological sign and analyze its personality traits and behaviors based on its associated characteristics. Some people believe that understanding their pet's astrological signs can help them better understand their pet's personality and behavior and provide insights into their likes, ... Read More
CSS, or Cascading Style Sheets, is a powerful tool for controlling the visual presentation of a webpage. One aspect of this is the ability to adjust the font size of text elements on the page. This can be done by using the font-size property. To set a specific font size for a particular element, we use a class or ID selector in conjunction with the font-size property. In this article we will see multiple example to change the font size using CSS - By using the font-size property, we can set a specific font size for a specific element ... Read More