> > gsub(paste(x, collapse = "|"), "something else", y) > [1] "something else blah" "something else blah" "something else blah" > [4] "something else blah"
Many thanks! I didn't know about "collapse". Should have thought about reading up in ?paste ... Thanks Marianne -- Marianne Promberger PhD, King's College London http://promberger.info R version 2.10.1 (2009-12-14) Ubuntu 9.10 ______________________________________________ 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.