Hi Dawn, Your data are a bit messed up, but try the following: colSums(dat[,grep("ABC",names(dat),fixed=TRUE)],na.rm=TRUE) colSums(dat[,grep("XYZ",names(dat),fixed=TRUE)],na.rm=TRUE)
I'm assuming that you want to discard the NA values. Jim On Fri, Jul 10, 2015 at 6:52 AM, Rui Barradas <ruipbarra...@sapo.pt> wrote: > Hello, > > Please use ?dput to give a data example, like this it's completely > unreadable. If your data.frame is named 'dat' use > > dput(head(dat, 30)) # paste the outut of this in your mail > > > And don't post in html, use plain text only, like the posting guide says. > > Rui Barradas > > > Em 09-07-2015 18:12, Dawn escreveu: >> >> Hi, >> >> I have a big dataframe as follows >> >> 109ABC 109XYZ 18ABC 18XYZ 22XYZ 23ABC 25ABC >> 25XYZ >> 30ABC 31XYZ 32ABC 32XYZ 34DCM 34XYZ 36ABC 36SUR >> 38DCM 38XYZ 39DCM 39SUR 41DCM 41SUR 42DCM 42SUR >> 46SUR 52DCM 64ABC 64XYZ 65ABC 65XYZ 66ABC 66XYZ >> 67XYZ 68ABC 68SUR 70MES 70SUR 72ABC 72XYZ 76ABC >> 76XYZ 82ABC 85ABC POV >> Cluster_1 17 1 >> 3 10 14 5 2 2 1 1 1 2 >> 2 TT:61 >> Cluster_2 1 4 20 >> 6 5 3 6 9 9 6 10 1 3 1 >> 4 TT:88 >> Cluster_3 3 3 6 4 17 >> 17 18 13 17 19 22 11 5 21 8 5 18 4 >> 7 9 >> TT:227 >> ........ >> >> I want to get two columns, i.e, one is to sum columns for all including >> ABC for each row and the other is to sum columns for all including XYZ >> for >> each row. >> >> Is there some help? Thank you! >> Dawn >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> 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 -- To UNSUBSCRIBE and more, see > 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 -- To UNSUBSCRIBE and more, see 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.