Splitting and Combining Pandas Columns into Separate Rows Using str.split() and explode()

Handling Missing Values in R: A Case Study on Populating NA with Zeros Based on Presence of Value in Another Row Using tidyverse

Melt Pandas DataFrame with Multiple Headers Whose Values Are Not Static Using Various Approaches

Selecting Longest String from Each Value of Table Column in R

Saving Data Frames into Separate CSVs in R: A Comprehensive Guide

Mastering Left Joins in R: A Comprehensive Guide to Joining Datasets