Creating a New Column Based on Other Columns from a Different DataFrame: A Pandas Approach to Efficient Data Manipulation and Analysis

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

Applying Conditional Logic with Dplyr and Regular Expressions in R: Grouping Data Based on Item Patterns

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