Hi You could use: gsub("([[:alnum:]]+-)([[:alnum:]]+-)(.*)","\\1\\2zzz",name) #[1] "hsa-miR-zzz" "hsa-miR-zzz" "hsa-let-zzz" A.K.
----- Original Message ----- From: Gundala Viswanath <gunda...@gmail.com> To: "r-h...@stat.math.ethz.ch" <r-h...@stat.math.ethz.ch> Cc: Sent: Wednesday, July 10, 2013 3:02 AM Subject: [R] Replacing part of delimited string with R's regex I have the following list of strings: name <- c("hsa-miR-555p","hsa-miR-519b-3p","hsa-let-7a") What I want to do is for each of the above strings replace the text after second delimiter with "zzz". Yielding: hsa-miR-zzz hsa-miR-zzz hsa-let-zzz What's the way to do it? [[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.