Aimin Yan <aiminy <at> iastate.edu> writes: > I am new to R. Maybe this is very simple question. > I have a dataframe, there is column that is factor. > This factor has three level that 1,2,3. > Now I want to change these level(1,2,3) to level(red,blue,dark). > Does anybody how to do this job?
levels() help page has entry about this. Try x <- factor(round(runif(n=10, min=1, max=3))) x [1] 3 1 1 3 1 2 2 2 1 2 Levels: 1 2 3 levels(x) <- list(red=c(1), blue=c(2), dark=c(3)) x [1] dark red red dark red blue blue blue red blue Levels: red blue dark You have factor in data.frame, so you have to use levels(myDF$x) <- ... Gregor ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
