Try this: shared <- vec3[ (vec3 %in% vec1) & (vec3 %in% vec2)]
Michael On Sat, Oct 1, 2011 at 2:00 AM, Chris Conner <connerpha...@yahoo.com> wrote: > Help-Rs, > > I've got three vectors representing participants: > > vec1 <- > c(4,5,6,7,8,9,10,11,12,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81) > vec2 <- c > (1,2,3,4,5,6,7,8,9,10,11,12,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66) > vec3 <- c (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,52) > > I'd like to return a vector that contains only the values that are shared > across ALL THREE vectors. So the statement would return a vector that looked > like this: > 4,5,6,7,8,9,10,11,12,52 > > For some reason I initially thought that a cbind and a unique() would handle > it, but then common sense sunk in. I think the sleep deprivation is starting > to take it's toll. I've got to believe that there is a simple solution to > this dilema. > > Thanks in adance for any help! > C > [[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.
