Hi Scott, You could set up a three-dimensional array and then use apply on the desired dimension (MARGIN in apply language).
HTH! Many thanks, Ranjan On Wed, 30 Apr 2014 17:54:48 +0000 "Waichler, Scott R" <scott.waich...@pnnl.gov> wrote: > Hi, > > I want to apply a custom function to all the elements of one matrix. The > function uses the value in the same i,j in a second matrix. How can I use > apply() or similar function to avoid nested loops in i and j? > > Thanks, > Scott Waichler > Pacific Northwest National Laboratory > Richland, WA, USA > > ______________________________________________ > 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. > -- Important Notice: This mailbox is ignored: e-mails are set to be deleted on receipt. Please respond to the mailing list if appropriate. For those needing to send personal or professional e-mail, please use appropriate addresses. ____________________________________________________________ FREE 3D EARTH SCREENSAVER - Watch the Earth right on your desktop! ______________________________________________ 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.