Categories / variables
Generating Dot Product Tables for All Level Combinations with Python
How to Remove Asterisks from Column Values in an R DataFrame Using stringr Package
How to Create a New Variable in R That Takes the Name of an Existing Variable from Within a List or Vector
Extracting Values from a Variable with Multiple Levels of Another Variable in R
Passing Variables into Data Tables: A Flexible Solution for Dynamic Filtering in R
Evaluating User Input as Dynamic Expressions in R with scan() and eval()
Understanding Character Variables in R: How to Convert and Work with Them Efficiently