What do you think? This is covered in the Introduction to R document that comes with R. -- Sent from my phone. Please excuse my brevity.
On September 19, 2016 8:37:30 PM PDT, John <miao...@gmail.com> wrote: >Hi, > > I have the following dataframe: > >> temp<-data.frame(a=c(1,1,2), b=2:4, c=1:3) >> row.names(temp)<-c("D", "E", "F") >> temp > a b c >D 1 2 1 >E 1 3 2 >F 2 4 3 > > I would like R to tell me which rows has value "a" equal to 1. The >answer is the first row and the second row, or row D and row E. Which >function should i use? function subset? function which? > > Thanks! > > [[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.