how about y = X[rep(1:nrow(X), 6), ]
? On Mon, Mar 15, 2010 at 5:37 PM, <jlu...@ria.buffalo.edu> wrote: > What is an easy way to stack a matrix multiple times? E.g. I have a 6x6 > matrix that I need to stack vertically 154 times to get a 6*154 by 6 > matrix. I would rather not rbind(X,X,...,X) matrices. --Joe > [[alternative HTML version deleted]] > > ______________________________________________ > 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.
