Try str[grep('[[:upper:]]{3}',str)]
On 06/11/06, Lapointe, Pierre <[EMAIL PROTECTED]> wrote: > Hello, > > I need to identify all elements which have a sequence of 3 consecutive upper > case letters, anywhere in the string. > > I tested my grep expression on this site: http://regexlib.com/RETester.aspx > > But when I try it in R, it does not filter anything. > > str <-c("AGH", "this WOUld be good", "Not Good at All") > str[grep('[A-Z]{3}',str)] #looking for a sequence of 3 consecutive upper > case letters > > [1] "AGH" "this WOUld be good" "Not Good at All" > > Any idea? > > Pierre > > ************************************************** > AVIS DE NON-RESPONSABILITE: Ce document transmis par courrie...{{dropped}} > > ______________________________________________ > R-help@stat.math.ethz.ch 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 Barron Said Business School University of Oxford Park End Street Oxford OX1 1HP ______________________________________________ R-help@stat.math.ethz.ch 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.