Transformations:
Preserve polynomial suffixes (.L, .Q, .C, etc.)
Split factor levels using levels_map
Abbreviate only variable portion (if abbreviate = TRUE)
Ensure uniqueness after abbreviation
Transformations:
Preserve polynomial suffixes (.L, .Q, .C, etc.)
Split factor levels using levels_map
Abbreviate only variable portion (if abbreviate = TRUE)
Ensure uniqueness after abbreviation