Reorder factors levels by first appearance, frequency, or numeric order.

Reorder factors levels by first appearance, frequency, or numeric order.

fct_inorder(f, ordered = NA)

fct_infreq(f, ordered = NA)

fct_inseq(f, ordered = NA)

Arguments

f	A factor
ordered	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 c
fct_inorder(f)
#> [1] b b a c c c
#> Levels: b a c
fct_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

f <- factor(sample(1:10))
fct_inseq(f)
#>  [1] 5  8  9  3  7  2  10 4  6  1 
#> Levels: 1 2 3 4 5 6 7 8 9 10