Sorry, I forgot to add that some of the entries in various matrices have NA in them. On Sep 12, 2010, at 3:40 PM, Gregory Ryslik wrote:
> Hi, > > I have a list of several hundred 2 dimensional matrices, where each matrix is > n x m. What I need to do is that for each n,m I need an average over all the > lists. This would collapse it down to just one nxm matrix. Any easy ways to > do that? As always, I'd like to avoid a for loop to keep computational time > low! Thanks again everyone! > > Cheers, > G > ______________________________________________ > 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. ______________________________________________ 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.