If i understand your question, you can do: x <- matrix(1:10, 2) y <- sample(10,5) apply(x, 1, function(.x)mapply(y, .x, FUN="*"))
On 15/11/2007, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Hi, > > I've got an array, say with i,jth entry = A_ij, and a vector, say with jth > entry= v_j. I would like to multiply each column of the array by the > corresponding vector component, i,e. find the array with i,jth entry > > A_ij * v_j > > This seems so basic but I can't figure out how to do it without a loop. > Any suggestions? > > Michal. > > ______________________________________________ > 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. > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O ______________________________________________ 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.
