On Fri, Sep 14, 2012 at 1:54 PM, Özgür Asar <oa...@metu.edu.tr> wrote: > Dear all, > > I want to concatenate the elements of two vectors such as > > a<-c("a1","a2") > b<-c("b1","b2") > > and obtain > > "a1b1", "a1b2","a2b1","a2b2" > > I tried the paste and paste0 functions, but they yielded elementwise > concatenation such as > > "a1b1","a2b2" > > I am wondering that is there an efficient way of doing my wish, for instance > without using for loop etc.
This is in the general frame of things which look like 'outer' (or Cartesian) products so you'll want to use the outer() function. I believe outer(a, b, FUN = paste0) should work. Cheers, Michael > > Best > > Ozgur > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/concatenating-two-vectors-tp4643139.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.