Group By Two Variables and then Create New Column which is the Value of One Variable Based on the Value of Another Variable in Python (pandas)

Alternative Approaches to Ranking Authors in Pandas: A Performance Comparison of Multiple Metrics Aggregation Methods

Understanding Implicit Character Conversion in R with Apply: Avoiding Unexpected Results in Data Frame Manipulation

Assigning Values to Columns Based on Lookup Values Using Tidyverse Package in R

Improving R Code for Histograms and Kolmogorov-Smirnov Tests: A Step-by-Step Guide

Relating Two Dataframes with a Function Using If Conditions in Python

Applying Custom Functions with Multiple Column Inputs in pandas: A Faster Approach Than You Think

Creating Formulas from Data Frames Using Non-Numeric Arguments in R

Optimizing Speed in R: The Battle Between Apply Function and For Loop

Mastering the Apply Method in Pandas DataFrames: Workarounds for Empty DataFrames and Performance Optimization