What you should keep in mind is that a matrix in R is nothing more than a vector (formed by stacking the columns of the matrix) with the dim attribute. Thus you can do what you want to do by treating the matrix as a vector; e.g.,
mymat[is.na(mymat)] <- myFavoriteValue HTH, Andy > From: michael watson (IAH-C) > > 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] > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
