Thanks! That worked well On 8/9/06, Dimitrios Rizopoulos <[EMAIL PROTECTED]> wrote: > if you want the first row for the unique 'aa' entries, try the following: > > cc[!duplicated(cc$aa), ] > > > I hope it helps. > > Best, > Dimitris > > ---- > Dimitris Rizopoulos > Ph.D. Student > Biostatistical Centre > School of Public Health > Catholic University of Leuven > > Address: Kapucijnenvoer 35, Leuven, Belgium > Tel: +32/(0)16/336899 > Fax: +32/(0)16/337015 > Web: http://med.kuleuven.be/biostat/ > http://www.student.kuleuven.be/~m0390867/dimitris.htm > > > > Quoting Lanre Okusanya <[EMAIL PROTECTED]>: > > > hello all, > > > > I have a dataset where the subjects are duplicated. How do I subset > > such that I can get only I row/subject. > > > > aa<-c(1,1,2,2,3,3,4,4,5,5,6,6) > > bb<-c(56,56,33,33,53,53,20,20,63,63,9,9) > > cc<-data.frame(aa,bb) > > > > I would like to subset df(cc) such that I can get > > aa bb > > 1 56 > > 2 33 > > 3 53 > > 4 20 > > 5 63 > > 6 9 > > > > I know this should be fairly easy but I can't figure how to do it in a > > dataframe and keep all my columns > > > > Thanks > > > > ______________________________________________ > > [email protected] 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. > > > > > > > > Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm > >
______________________________________________ [email protected] 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.
