Hello, >From the help page: "Performs *set* union, intersection, (asymmetric!) difference, equality and membership on two vectors."
Hope this helps, Pascal On Mon, Jun 2, 2014 at 3:57 PM, Raphael Päbst <raphael.pae...@gmail.com> wrote: > Hello everyone, I have a question which is probably rooted in my lack > of understanding when it comes to math. > > I just did the following: > > v <- c(1:20) > w <- c(11:30) > setdiff(v, w) > > and got: > 1 2 3 4 5 6 7 8 9 10 > > Then I did the following: > setdiff(w, v) > and got, not surprisingly: > 21 22 23 24 25 26 27 28 29 30 > > Now I was originally expecting to get bot with the first call of > setdiff(v, w) and couldn't find any reason not to expect this from > ?setdiff() > > Am I missing somethin vital here or does setdiff() always give me the > elements of the first set that are not in the second one and not those > which are exclusive to either one, just dropping the ones in the > intersection of both sets? > > Many Thanks in advance > > Raphael > > ______________________________________________ > 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. -- Pascal Oettli Project Scientist JAMSTEC Yokohama, Japan ______________________________________________ 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.
