I have a vector x containing letters ("a", "b" etc.). Now I want to
convert it to factor and group some letters into one common level. If I do
it by factor function, giving the same label names for all values I want
to group, it doesn't work:
x<-letters[1:5]
x
[1] "a" "b"
Hello,
I have a vector x containing letters ("a", "b" etc.). Now I want to
convert it to factor and group some letters into one common level. If I do
it by factor function, giving the same label names for all values I want
to group, it doesn't work:
> x<-letters[1:5]
> x
[1] "a" "b" "c" "d" "e"
>
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