? duplicated !duplicated(a.ord, fromLast = TRUE)
HTH, Michael On Tue, May 15, 2012 at 9:37 PM, Axel Urbiz <axel.ur...@gmail.com> wrote: > 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. ______________________________________________ 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.