There are several ways. The easiest to understand is probably using if() statements: see ?if for help and examples.
Sarah On Fri, Jun 1, 2012 at 11:34 AM, jfca283 <jfca...@gmail.com> wrote: > Hi > I need to do something very simple. I have 2 variables, Y and M. I need to > multiply Y by 1 if M=1, by 2 if M=3 and by 3.6678 if M=9. How do i make it? > Thanks for your time and interest > -- Sarah Goslee http://www.functionaldiversity.org ______________________________________________ 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.
