PySpark is a powerful tool for data processing and analysis. When working with data in a PySpark DataFrame, you may sometimes need to get a specific row from the dataframe. It helps users to manipulate and access data easily in a distributed and parallel manner, making it ideal for big data applications. In this article, We will explore how to get specific rows from the PySpark dataframe using various methods in PySpark. We will cover the approaches in functional programming style using PySpark's DataFrame APIs. Before Moving forward, let's make a sample dataframe from which we have to get the ... Read More

Emotion identification or recognition is the ability of a person or an object to sense a particular emotion exhibited in the environment and place it into one of the many categories of emotions. Emotion Classification in python is a feasible alternative to the traditional sentiment analysis technique which labels words or sentences as positive or negative and allots them with a polarity score accordingly. The basic ideology behind this algorithm is to mimic the human thought process and it tries to segment the words portraying emotions from the text. The analysis is performed with a training set of data where ... Read More

Email and social logins are common techniques for websites and apps to allow users to establish accounts or check in. Users must provide their email address and password for email login, however, social login allows users to sign in using their social networks accounts, such as Facebook or Google. In this tutorial, we'll go through how to set up email and social logins in Django. Method With Django, there are numerous ways to incorporate email and social logins. The Django-allauth package, which supports authentication for numerous login methods, including email and social logins, is one of the most prevalent. Another ... Read More

In this article, we are going to explore an interesting problem related to string manipulation using various programming languages. The problem statement is "Sum of frequencies of characters of a string present in another string". This problem provides a great opportunity to enhance your understanding of string operations, character frequency calculation, and the concept of mapping in C, C++, Java and Python. Problem Statement Given two strings, the task is to find the sum of frequencies of characters of the first string that are present in the second string. Solution Approach To solve this problem, we will first create frequency ... Read More

In this article, we will delve into a specific aspect of string handling in C++: the string::npos constant. string::npos is a static member constant value with the greatest possible value for an element of type size_t. This constant is defined with a value of -1, which, when cast to size_t, gives us the largest possible representation for size_t. In the context of strings in C++, it is generally used to indicate an invalid position. What is String::npos? In C++, string::npos is a constant static member of the std::string class that represents the maximum possible value for the size_t type. It ... Read More

In this article, we dive into a unique and interesting problem related to arrays and string manipulation in various programming languaues. The problem at hand is "Sort an array of strings in ascending order with each string sorted in descending order". This problem is an excellent way to enhance your knowledge of string manipulation, arrays, and sorting algorithms. Problem Statement Given an array of strings, the task is to sort the array in ascending order, but with each string sorted in descending order. Solution Approach We can solve this problem by using the sort function provided by the C++ Standard ... Read More

This article delves into an interesting string manipulation problem: "Remove all occurrences of a word from a given string using Z-algorithm". This problem serves as an excellent use case for the Z-algorithm, highlighting its efficacy in pattern searching problems. Let's explore in detail. Problem Statement Given a string S and a word W, the task is to remove all occurrences of W from S using the Z-algorithm. Understanding the Problem Consider a string S = "HelloWorldHelloWorld" and a word W = "World". The goal is to remove all occurrences of W from S. Hence, the output would be "HelloHello". Z-algorithm ... Read More

In this article, we are going to unravel an interesting problem from the domain of string manipulation: "Rearrange a string to maximize the minimum distance between any pair of vowels". This problem challenges us to manipulate the arrangement of characters in a string to ensure the maximum possible minimum distance between any two vowel characters. We'll discuss the problem in detail, providing the various programs. Understanding the Problem Statement Given a string, the task is to rearrange the characters in the string in such a way that the minimum distance between any pair of vowels is maximized. In other words, ... Read More

In this article, we will delve into an interesting and practical problem related to string manipulation in C programming. We are going to build a "Random Password Generator" in C. This problem not only enhances your understanding of string manipulation but also your knowledge of the C Standard Library. Problem Statement The task is to build a program that generates a random password of a specified length. The password should include uppercase and lowercase alphabets, digits, and special characters. C Solution Approach To solve this problem, we'll leverage the power of the C Standard Library. We'll use the rand() function ... Read More

Welcome to this in-depth tutorial on how to write a Python program to find the smallest word in a sentence. Whether you are a beginner or an intermediate Python programmer, this guide will offer the knowledge and skills necessary to use Python's powerful features in text manipulation. Problem Statement Given a sentence, our task is to find the smallest word. The "smallest" word refers to the word with the fewest characters. In case of a tie, we'll return the first occurring smallest word. Approach We start by splitting the sentence into words, which we'll accomplish by using spaces as the ... Read More