Hi!
Suppose I have a factor:
> fac1 <- factor(rep(c("dog","cat","tree"),c(2,3,4)))
> fac1
[1] dog dog cat cat cat tree tree tree tree
Levels: cat dog tree
> length(fac1)
[1] 9
Now I want to get rid of the dogs:
> fac1 <- fac1[3:9]
> fac1
[1] cat cat cat tree tree tree tree
Levels: cat dog tree
>
How should I remove the dog from the level, please?
Thanks in advance,
Edna Bell
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