It should be simple but i do not find the right keywords:
Dup = c(1,2,3,4,1,2,3,5) I need 4,5 as result unique(Dup) gives me [1] 4 1 2 3 5 duplicated(Dup) gives me [1] FALSE FALSE FALSE FALSE TRUE TRUE TRUE FALSE I need [1] TRUE TRUE TRUE FALSE TRUE TRUE TRUE FALSE Kind regards Knut ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.