See: ?duplicated
On Tue, Jan 19, 2010 at 9:47 PM, Tuatara <franziskabro...@gmail.com> wrote: > > Hi everybody, > > I would like to delete rows based on duplicate entries in column 3 in the > data matrix X (size 60000 x 57). I have tried the unique(x) command as > >> data <- X[unique(X[,3]),] > > however, for some reason the command introduces a lot of NA's into the > dataset. > So, now I'm looking for a function that eliminates rows, if they have > duplicate values in column 3. > > Does anyone have an idea how to do this? > > Cheers and thanks a lot for the help, > Fran > -- > View this message in context: > http://n4.nabble.com/Deleting-rows-based-on-duplicate-entries-in-one-columns-in-a-data-matrix-tp1018110p1018110.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. > ______________________________________________ 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.
