forcats (version 0.5.1)

fct_expand: Add additional levels to a factor

Description

Add additional levels to a factor

Usage

fct_expand(f, ...)

Arguments

f

A factor (or character vector).

...

Additional levels to add to the factor. Levels that already exist will be silently ignored.

See Also

fct_drop() to drop unused factor levels.

Examples

f <- factor(sample(letters[1:3], 20, replace = TRUE))
f
fct_expand(f, "d", "e", "f")
fct_expand(f, letters[1:6])