collapse.md
In forcats: Tools for Working with Categorical Variables (Factors)

group_other is deprecated

Code
  f2 <- fct_collapse(f1, x1 = c("a", "d"), x2 = "c", group_other = TRUE)
Condition
  Warning:
  The `group_other` argument of `fct_collapse()` is deprecated as of forcats 0.5.0.
  i Please use the `other_level` argument instead.

valdiates inputs

Code
  fct_collapse(1)
Condition
  Error in `fct_collapse()`:
  ! `.f` must be a factor or character vector, not a number.
Code
  fct_collapse("x", other_level = 1)
Condition
  Error in `fct_collapse()`:
  ! `other_level` must be a single string, `NA`, or `NULL`, not the number 1.