Because you need test <= 0.2 | test >0.3
See ?"|" Gabor On Mon, Feb 11, 2008 at 09:12:57PM +0800, Stanley Ng wrote: > That works beautfully. Why using test<=0.2 || test >0.3 gives error ? > > -----Original Message----- > From: Gabor Csardi [mailto:[EMAIL PROTECTED] > Sent: Monday, February 11, 2008 18:27 > To: Ng Stanley > Cc: r-help > Subject: Re: [R] Conditional rows > > 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 [...] -- 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.
