Categories / variables
Grouping Variables in R: A Simple yet Effective Approach to Modeling Relationships
Evaluating User Input as Dynamic Expressions in R with scan() and eval()
How to Create a New Variable in R That Takes the Name of an Existing Variable from Within a List or Vector
Using Variables in Formula Syntax with R: A Flexible Solution
How to Assign Descriptive Variable Names to Output Graphs in R Using paste0 and sprintf Functions