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

How to View Source Code for Functions in R: A Comprehensive Guide

Understanding Special Characters in Regular Expressions: A Guide to Regex Escaping and Patterns

Using Dynamic Column Selection in R: A Workaround Around the `$` Operator

R's Floating Point Arithmetic Limitations: Mastering Tolerance-Based Comparisons

Solving the "Package 'xxx' is Not Available" Warning in R: 11 Possible Solutions