Split interaction terms into their component variables
Usage
split_interactions(x, by = "\\*|:")
Arguments
- x
(character)
string representing the interaction
usually in the form x:y or x*y.
- by
(character)
regex with which to split the interaction
term by.
Value
a vector of strings where each element is a component
variable extracted from interaction term x.
Examples
split_interactions("x:y")
#> [1] "x" "y"
split_interactions("x*y")
#> [1] "x" "y"