Reorder factors levels by first appearance or frequency

fct_inorder(f, ordered = NA)

fct_infreq(f, ordered = NA)

Arguments

f A factor A logical which determines the "ordered" status of the output factor. NA preserves the existing status of the factor.

Examples

f <- factor(c("b", "b", "a", "c", "c", "c"))
f#> [1] b b a c c c
#> Levels: a b cfct_inorder(f)#> [1] b b a c c c
#> Levels: b a cfct_infreq(f)#> [1] b b a c c c
#> Levels: c b a
fct_inorder(f, ordered = TRUE)#> [1] b b a c c c
#> Levels: b < a < c