Reshaping Wide Format Data Using R and data.table Package

Stacking Data: A Guide to Understanding and Applying Melt Sets in R and Python

Reshaping Pandas DataFrames from Wide Format to Long Format Using pivot_table Function

Reshaping Data from Datastream for Panel Regression Analysis with R

Finding Consensus in Two Out of Three Columns and Summarizing Them with R Code

Understanding Long-Format Data and the Need for Reshaping Using Pivot_Wider in R Programming Language

Reshaping Long-Form Data with Pandas: A Comparison of Two Methods