fac.recode: Recodes factor levels using values in a vector. The values in the vector do
not have to be unique.
Description
Recodes the levels and values of a factor using each value in the
newlevels vector to replace the corresponding value in the vector of
levels of the factor.
## set up a factor with labelsa <- factor(rep(1:4, 4), labels=c("A","B","C","D"))
## recode "A" and "D" to 1 and "B" and "C" to 2b <- fac.recode(a, c(1,2,2,1), labels = c("a","b"))