Dear List, How can I get a logical vector as shown by a.ord.last below (i.e., it is FALSE whenever there are subsequent equal values of an ordered vector and FALSE otherwise)?
a <- c(1,1,2,1,3,4,3,5,6) a.ord <- a[order(a)] a.ord a.ord.last <- c(F, F, T, T, F, T, T, T, T) Thanks for any help Axel. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org 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.