Hi, Try: dat<- data.frame(id=1:3,abcmor=2:4,relmor=c(5,4,3), neomor=c(6,3,1), Column5=c(4,8,1) )
colnames(dat)[grep("mor",colnames(dat))] <- gsub("mor$","",colnames(dat)[grep("mor",colnames(dat))]) dat A.K. I have several columns which all end with "mor". How can I remove the suffix mor for all columns? id abcmor relmor neomor 1 2 5 6 2 3 4 3 3 4 3 1 ______________________________________________ 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.