On Thu, Feb 19, 2009 at 5:40 PM, Aaron Mackey <ajmac...@gmail.com> wrote: > There's got to be a better way to use order() on a matrix than this: > >> y > 2L-035-3 2L-081-23 2L-143-18 2L-189-1 2R-008-5 2R-068-15 3L-113-4 > 3L-173-2 > 398 1 1 2 2 1 1 2 > 2 > 857 1 1 2 2 1 2 2 > 2 > 911 1 1 2 2 1 2 2 > 2 > 383 1 1 2 2 1 1 2 > 2 > 639 1 2 2 1 2 2 1 > 2 > 756 1 2 2 1 2 2 1 > 2 > 3L-186-1 3R-013-7 3R-032-1 3R-169-10 X-002 X-087 > 398 1 2 2 2 1 2 > 857 1 2 2 2 1 2 > 911 1 2 2 2 1 2 > 383 1 2 2 2 1 2 > 639 2 2 1 2 1 2 > 756 2 2 1 2 1 2 > >> > y[order(y[,1],y[,2],y[,3],y[,4],y[,5],y[,6],y[,7],y[,8],y[,9],y[,10],y[,11],y[,12],y[,13],y[,14]),] > 2L-035-3 2L-081-23 2L-143-18 2L-189-1 2R-008-5 2R-068-15 3L-113-4 > 3L-173-2 > 398 1 1 2 2 1 1 2 > 2 > 383 1 1 2 2 1 1 2 > 2 > 857 1 1 2 2 1 2 2 > 2 > 911 1 1 2 2 1 2 2 > 2 > 639 1 2 2 1 2 2 1 > 2 > 756 1 2 2 1 2 2 1 > 2 > 3L-186-1 3R-013-7 3R-032-1 3R-169-10 X-002 X-087 > 398 1 2 2 2 1 2 > 383 1 2 2 2 1 2 > 857 1 2 2 2 1 2 > 911 1 2 2 2 1 2 > 639 2 2 1 2 1 2 > 756 2 2 1 2 1 2 > > Thanks for any suggestions! > > -Aaron >
You mean something like this: > test<-matrix(sample(1:4,100,replace=T),ncol=10) > test[do.call(order,data.frame(test)),] ? Regards, Gustaf -- Gustaf Rydevik, M.Sci. tel: +46(0)703 051 451 address:Essingetorget 40,112 66 Stockholm, SE skype:gustaf_rydevik ______________________________________________ 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.