Replace levels with "other"

fct_other(f, keep, drop, other_level = "Other")

Arguments

f

A factor.

keep, drop

keep will preserve listed levels, replacing all others other_level. drop will replace listed levels with other_level keep as they are.

other_level

Value of level used for "other" values. Always placed at end of levels.

See also

fct_lump() to automatically convert the rarest (or most common) levels to "other".

Examples

x <- factor(rep(LETTERS[1:9], times = c(40, 10, 5, 27, 1, 1, 1, 1, 1))) fct_other(x, keep = c("A", "B"))
#> [1] A A A A A A A A A A A A #> [13] A A A A A A A A A A A A #> [25] A A A A A A A A A A A A #> [37] A A A A B B B B B B B B #> [49] B B Other Other Other Other Other Other Other Other Other Other #> [61] Other Other Other Other Other Other Other Other Other Other Other Other #> [73] Other Other Other Other Other Other Other Other Other Other Other Other #> [85] Other Other Other #> Levels: A B Other
fct_other(x, drop = c("A", "B"))
#> [1] Other Other Other Other Other Other Other Other Other Other Other Other #> [13] Other Other Other Other Other Other Other Other Other Other Other Other #> [25] Other Other Other Other Other Other Other Other Other Other Other Other #> [37] Other Other Other Other Other Other Other Other Other Other Other Other #> [49] Other Other C C C C C D D D D D #> [61] D D D D D D D D D D D D #> [73] D D D D D D D D D D E F #> [85] G H I #> Levels: C D E F G H I Other