Try AA <- apply(A,1,function(x) paste(x,collapse=""))
and work with AA. --- On Tue, 30/9/08, Jose Luis Aznarte M. <[EMAIL PROTECTED]> wrote: > From: Jose Luis Aznarte M. <[EMAIL PROTECTED]> > Subject: [R] ordering problem > To: [EMAIL PROTECTED] > Received: Tuesday, 30 September, 2008, 8:43 PM > Hi there! > I need some assistance here with vector orderings. > I have a set > of q vectors of length p, grouped by rows in a matrix A, > q·p, that I > need to order lexicographically > (http://en.wikipedia.org/wiki/Lexicographical_order). > I also have another matrix B, p·r, and a vector c, > that should > be ordered according to the order of A. So far, I was doing > > ordering <- apply(A, 2, order)[,1] > A <- A[ordering,] > B <- B[ordering,] > c <- c[ordering] > > But now I realize that this way I'm ordering by > considering only > the first dimension of the vectors in A, i.e., not > considering the case > where there are ties amongst this first dimension. Does > anyone have a > clue about properly applying the lexicographical ordering? > Thanks in > advance! > > > -- -- > Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte > Department of Computer Science and Artificial Intelligence > Universidad de Granada Tel. +34 - 958 - 24 04 67 > GRANADA (Spain) Fax: +34 - 958 - 24 00 79 > > ______________________________________________ > 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.
