> x <- c("abc","def","rst","xyz","age","age2") > grep("^age$", x) [1] 5 > grep("^age2$", x) [1] 6 > >
-----Oprindelig meddelelse----- Fra: R-help [mailto:r-help-boun...@r-project.org] På vegne af Steven Yen Sendt: 4. maj 2016 07:46 Til: r-help Emne: [R] Grep command Dear all In the grep command below, is there a way to identify only "age" and not "age2"? In other words, I like to greb "age" and "age2" separately, one at a time. Thanks. x<-c("abc","def","rst","xyz","age","age2") x [1] "abc" "def" "rst" "xyz" "age" "age2" grep("age2",x) [1] 6 grep("age",x) # I need to grab "age" only, not "age2" [1] 5 6 ______________________________________________ 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.