Change factor levels by hand

fct_recode(f, ...)

Arguments

f

A factor.

...

A sequence of named character vectors where the name gives the new level, and the value gives the old level. Levels not otherwise mentioned will be left as is. Levels can be removed by naming them NULL.

Examples

x <- factor(c("apple", "bear", "banana", "dear")) fct_recode(x, fruit = "apple", fruit = "banana")
#> [1] fruit bear fruit dear #> Levels: fruit bear dear
# If you make a mistake you'll get a warning fct_recode(x, fruit = "apple", fruit = "bananana")
#> Warning: Unknown levels in `f`: bananana
#> [1] fruit bear banana dear #> Levels: fruit banana bear dear
# If you name the level NULL it will be removed fct_recode(x, NULL = "apple", fruit = "banana")
#> [1] <NA> bear fruit dear #> Levels: fruit bear dear