x <- matrix(rnorm(100),ncol=10) x[x>0] <- NA x[is.na(x)] <- 1000
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > michael watson (IAH-C) > Sent: Wednesday, January 05, 2005 9:26 AM > To: R-help@stat.math.ethz.ch > Subject: [R] Replacing all NA values in a matrix > > > OK, dumb question, and it is probably in the docs somewhere, > but after 12 months working with R and quite a while looking > at the docs, I still don't know (or have forgotten) how to > replace all NA values in a matrix at once with some other > value. I can do it column by column using is.na(), but I > can't figure out how to do it for the whole matrix. My > apologies, I am ashamed ;-) > > Michael Watson > Head of Informatics > Institute for Animal Health, > Compton Laboratory, > Compton, > Newbury, > Berkshire RG20 7NN > UK > > Phone : +44 (0)1635 578411 ext. 2535 > Mobile: +44 (0)7990 827831 > E-mail: [EMAIL PROTECTED] > > ______________________________________________ > 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 > ______________________________________________ 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