Reshaping DataFrames from Wide to Long Format in R: A Comparison of Two Approaches Using data.table and tidyr

Transforming Wide Format DataFrames in R: A Step-by-Step Guide to Long Format Using gather Function

Reshaping Long Data to Wide Format Using Python (Pandas)

Understanding the Issue with Subsetting R Data Frame Results in Mysterious NA Rows

Reshaping Data from Wide to Long Format while Collapsing Variable Values for Same IDs in R

Pivoting Varnames with Regular Expressions in `pivot_longer`

Reshaping Data to Plot in R using ggplot2