孟欣 <lm_mengxin <at> 163.com> writes: > > v1<-c("a","b","c","d") > v2<-c("a","b","e") > v3<-c("a","f","g") > > I want to get the intersection of v1,v2,v3,ie "a" > > How can I do then? > > What I know is only for 2 vectors via "intersect" function, but don't know how to deal with multiple vectors. >
Reduce(intersect, list(v1 = c("a","b","c","d"), v2 = c("a","b","e"), v3 = c("a","f","g"))) > Many thanks -- Ken Knoblauch Inserm U846 Stem-cell and Brain Research Institute Department of Integrative Neurosciences 18 avenue du Doyen Lépine 69500 Bron France tel: +33 (0)4 72 91 34 77 fax: +33 (0)4 72 91 34 61 portable: +33 (0)6 84 10 64 10 http://www.sbri.fr/members/kenneth-knoblauch.html ______________________________________________ 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.