Set NA values of a factor vector to a new level indicating missingness
Usage
factor_NA2missing(x, na_level_name = "missing")
Arguments
- x
Factor.
- na_level_name
Character: Name of new level to create that will be assigned to all current
NA values in x.
Examples
if (FALSE) { # \dontrun{
x <- factor(sample(letters[1:3], 100, TRUE))
x[sample(1:100, 10)] <- NA
xm <- factor_NA2missing(x)
} # }