What is wrong with utilizing the vectorized nature of paste? zz[[1]] <- paste(zz[[1]],zz[[2]],sep="_") --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity.
Chet Seligman <chet.selig...@gmail.com> wrote: >This works, where zz is a dataframe: > >for(i in 1:nrow(zz)) { > zzz[i,1]<-paste(zz[i,1],zz[i,2],sep="_") > } > >I would like to use "apply" to concatentate two columns of text along >with >a separator. >How? > >Chet > > [[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.