Averaging Rows in DataFrames Based on Columns with the Same Name Using R

Converting a Matrix to a DataFrame with Three Columns Using Python's Pandas Library

How to Perform Arithmetic Operations on Multiple Columns with Pandas Agg Function

Subsetting Data by Conjunction of Two Columns in R Using dplyr

Splitting Single-Column Text Files into Multiple Columns with Pandas DataFrame

How to Concatenate Thousands of Columns Using UNITE in R

Customizing String Retrieval in Pandas MultiIndex DataFrames for Advanced Analysis