Understanding Unbalanced Panel Data in Multinomial Regression with the mlogit Package in R

Reshaping Data from Long to Wide Format in R: A Comprehensive Guide

Converting Long Format Flat Files to Wide in R Using reshape Function

Converting Unbalanced Time Varying Variables from Wide to Long Format in R: A Step-by-Step Guide

Transforming Long Data into Wide Format Using Tidyr in R: A Comprehensive Guide

Reshaping Data from Long to Wide Format Using R's reshape2 Package

Understanding the Warning in R's reshape2 Melt Function: Resolving Issues with ID Variables in Data Transformation