On Wed, Jan 7, 2015 at 3:15 PM, Peter Langfelder <peter.langfel...@gmail.com> wrote: > You can create a suitable matrix bb as below (note the byrow = TRUE argument) > > aa<-matrix(1:30,nrow=10,ncol=3); aa > bb<-matrix(c(100,100,1),nrow=10,ncol=3, byrow = TRUE); bb > dim(aa) > dim(bb) > aa * bb > > > You can also use matrix multiplication, but that;s slightly more involved:
I should add that it will also be much slower if, as you say, you do it on a much larger scale and the dimensions of bb are large. Peter ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
