Thanks everyone! It is just as I expected, I just didn't understand how setdiff() works.
Raphael On 6/2/14, Pascal Oettli <kri...@ymail.com> wrote: > 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.
