Hmmm, maybe i wasn't clear enough. So, i need the number of occurences for each row/column in the matrix. For your matrix the desired output would be something like a matrix
1 2 3 4 5 6 1 3 2 1 1 1 and the number of occurences for each row: 2 2 1 1 I know some solutions like https://stat.ethz.ch/pipermail/r-help/2007-December/149033.html but this is not the best since it converts numeric data to strings, and this has a lot of problems. Btw. i've just noticed that unique.matrix does the same..... I guess i need to code this for myself, just wanted to be sure that i'm not missing the easy way.... Gabor On Fri, Jan 11, 2008 at 02:07:37PM -0500, John Kane wrote: > ?unique & ?length > > #unique rows in a matrix > X<-matrix(c(1,2,3,1,2,3,4,5,6,1,3,2,4,5,6,1,1,1),6,3,byrow=TRUE) > length(unique(X)[,1]) > > #unique columns in a data.frame > Y <- data.frame( a=1:5, b=2:6, c=1:5) > length(unique(t(Y)[,1])) > > --- Gabor Csardi <[EMAIL PROTECTED]> wrote: > > > Dear List, > > > > i know there are some solutions for this in the > > archive, > > but they're not very good for numeric matrices, > > since they > > usually convert rows/columns to character strings. > > Is there > > an easy way to do $subject for numeric matrices > > properly, > > or i need to do it by hand? > > > > Thanks, > > Gabor > > > > ______________________________________________ > > 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. > > > > > > Get a sneak peak at messages with a handy reading pane with All new > Yahoo! Mail: http://mail.yahoo.ca -- Csardi Gabor <[EMAIL PROTECTED]> UNIL DGM ______________________________________________ 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.
