Recode/relevel data.frame factors with different levels

Question

Each time when I have to recode some set of variables, I have SPSS recode function in mind. I must admit that it\'s quite straightforward. There\'s a similar recode

Answer 1

Yes, just assign to levels:

R> set.seed(100)
R> x <- as.factor(round(runif(100,1,7)))
R> table(x)
x
 1  2  3  4  5  6  7 
 3 16 20 19 18 17  7 
R> levels(x) <- LETTERS[1:7]
R> table(x)
x
 A  B  C  D  E  F  G 
 3 16 20 19 18 17  7 
R>