great! Thanks ----- Original Message ----- From: David Winsemius <dwinsem...@comcast.net> To: raje...@cse.iitm.ac.in Cc: r-help <r-help@r-project.org> Sent: Wed, 15 Sep 2010 21:12:27 +0530 (IST) Subject: Re: [R] characters in a string
On Sep 15, 2010, at 11:16 AM, raje...@cse.iitm.ac.in wrote: > > Hi, > > I need to check if a string "a,b,c,d" is delimited by two > "" 's as efficiently as possible(I need to do this a lot of > times) and return TRUE. Can someone suggest a good technique? > txt <- "a,b,c,d" > > grep("^.+$", txt) [1] 1 > [[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. David Winsemius, MD West Hartford, CT [[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.