On 05-04-2012, at 21:32, Julio Sergio wrote: > I have an ordered "set" of numbers, represented by a vector, say > >> X <- c(10:13, 17,18) >> X > [1] 10 11 12 13 17 18 > > then I have a "sub-set" of X, say > >> Y <- c(11,12,17,18) > > Is there a simple way in R to have a logical vector (parallel to X) > indicating > what elements of X are in Y, i.e., > >> Inclusion > [1] FALSE TRUE TRUE FALSE TRUE TRUE > > I'm trying to avoid looping over both vectors to produce the tests. Do you > have > any comments on this?
Try X %in% Y You could also have a look at match Berend ______________________________________________ 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.
