On Thu, Jun 02, 2011 at 11:23:28AM -0400, Jim Silverton wrote: > Hi, > Can someone tell me how to remove rows of zeros from a matrix? > For example if I have the following matrix, > > 0 0 > 0 1 > 2 8 > 0 0 > 4 56 > > I should end up with > 0 1 > 2 8 > 4 56
Hi. Try the following a <- matrix(c(0, 0, 2, 0, 4, 0, 1, 8, 0, 56), ncol=2) a[rowSums(a != 0) != 0, ] Hope this helps. Petr Savicky. ______________________________________________ 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.
