?order You could do something like:
mat[order(mat[,1], mat[,2], mat[,3]),] On 7/29/07, Am Stat <[EMAIL PROTECTED]> wrote: > Dear useR, > > I have a data matrix, it has n columns, each column is a two-level variable > with entires -1 and +1. They are randomly generated, now I want to order > them like (for example, 5 columns case) > - - - - - > - - - - - > ................. > (first several rows are the samples with all variables in low level) > > + - - - - > + - - - - > ............................. > > > - + - - - > > > + + - - - > > > > + + + + + > > Is there any function in R that could let me do this order by Var1 then > order by Var2 then...order by Var n > > > Thanks very much in advance! > > > Best, > > Leon > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@stat.math.ethz.ch 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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? ______________________________________________ R-help@stat.math.ethz.ch 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.