which(apply(test<=0.2, 1, all)) See ?which, ?all, and in particular ?apply.
Gabor On Mon, Feb 11, 2008 at 06:22:09PM +0800, Ng Stanley wrote: > Hi, > > Given a simple example, test <- matrix(c(0.1, 0.2, 0.1, 0.2, 0.1, 0.1, 0.3, > 0.1, 0.1), 3, 3) > > How to generate row indexes for which their corresponding row values are > less than or equal to 0.2 ? For this example, row 2 and 3 are the correct > ones. > > Thanks > > [[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. -- 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.
