You had the wrong case on 'w' and the wrong expression with [:space:]'; see below
> bbb <- c("02.06.10 12:40 ", "02.06.10 12:00 ", "02.06.10 11:00 ", + "02.06.10 10:00 ", "02.06.10 09:00 ", "02.06.10 08:00 ", + "02.06.10 07:00 ", "02.06.10 06:00 ", "02.06.10 05:00 ", + "02.06.10 04:00 ", "02.06.10 03:00 ", "02.06.10 02:00 ", + "02.06.10 01:00 ", "02.06.10 00:00 ", "01.06.10 23:00 ", + "01.06.10 22:00 ", "01.06.10 21:00 ", "01.06.10 20:00 ", + "01.06.10 19:00 ", "01.06.10 18:00 ", "01.06.10 17:00 ", + "01.06.10 16:00 ", "01.06.10 15:00 ", "01.06.10 14:00 ", + "01.06.10 13:00 ", "01.06.10 05:00 ", "31.05.10 05:00 ", + "30.05.10 05:00 ", "29.05.10 05:00 ", "28.05.10 05:00 ", + "27.05.10 05:00 ") > sub('\\W+$', '', bbb[1]) [1] "02.06.10 12:40" > sub('[[:space:]]+$', '', bbb[1]) [1] "02.06.10 12:40" > On Wed, Jun 2, 2010 at 9:22 AM, Petr PIKAL <petr.pi...@precheza.cz> wrote: > Hi > >> dput(bbb) > c("02.06.10 12:40 ", "02.06.10 12:00 ", "02.06.10 11:00 ", > "02.06.10 10:00 ", "02.06.10 09:00 ", "02.06.10 08:00 ", > "02.06.10 07:00 ", "02.06.10 06:00 ", "02.06.10 05:00 ", > "02.06.10 04:00 ", "02.06.10 03:00 ", "02.06.10 02:00 ", > "02.06.10 01:00 ", "02.06.10 00:00 ", "01.06.10 23:00 ", > "01.06.10 22:00 ", "01.06.10 21:00 ", "01.06.10 20:00 ", > "01.06.10 19:00 ", "01.06.10 18:00 ", "01.06.10 17:00 ", > "01.06.10 16:00 ", "01.06.10 15:00 ", "01.06.10 14:00 ", > "01.06.10 13:00 ", "01.06.10 05:00 ", "31.05.10 05:00 ", > "30.05.10 05:00 ", "29.05.10 05:00 ", "28.05.10 05:00 ", > "27.05.10 05:00 ") >> > > For simplicity I change the name and put it to single variable. > I also reinstalled R to recent R-devel > >> sub('\\w+$', '', bbb[1]) > [1] "02.06.10 12:40 " >> sub('[:space:]', '', bbb[1]) > [1] "02.06.10 1240 " >> > > I also tried Matt's suggestion but it did not help. > > Regards > Petr > > Joris Meys <jorism...@gmail.com> napsal dne 02.06.2010 14:35:19: > >> Could you provide us with dput(becva$V1[1])? >> Cheers >> Joris > >> On Wed, Jun 2, 2010 at 2:07 PM, Petr PIKAL <petr.pi...@precheza.cz> > wrote: >> Dear all >> >> I encountered strange problem with regexpr replacement >> >> I made this character object >> >> str <- "02.06.10 12:40 " >> >> > str(str) >> chr "02.06.10 12:40 " >> >> I read in an object which seems to be quite similar >> >> > str(as.character(becva$V1)[1]) >> chr "02.06.10 12:40 " >> >> However I can not remove trailing spaces from it >> >> > sub(' +$', '', as.character(becva$V1[1])) >> >> [1] "02.06.10 12:40 " >> > sub(' +$', '', str) >> [1] "02.06.10 12:40" >> > >> >> Do somebody have an idea what to do? >> >> $version.string >> [1] "R version 2.12.0 Under development (unstable) (2010-04-25 r51820)" >> >> on Windows >> >> Regards >> Petr >> >> ______________________________________________ >> 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. >> >> >> >> -- >> Joris Meys >> Statistical Consultant >> >> Ghent University >> Faculty of Bioscience Engineering >> Department of Applied mathematics, biometrics and process control >> >> Coupure Links 653 >> B-9000 Gent >> >> tel : +32 9 264 59 87 >> joris.m...@ugent.be >> ------------------------------- >> Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php > > ______________________________________________ > 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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? ______________________________________________ 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.