I'm sure this is easy, but I'm having a hard time figuring out how to recode some data in R.
I have a variable "numpeers" which is valued 1, 2, or 3. I also have three other variables called "w9zd9_1," "w9zd9_2," and "w9zd9_3." I want to use these variables to create a new item called "distot." Specifically, here is what I want to do: -if numpeers=1, then distot=w9zd9_1 -if numpeers=2, then distot=(w9zd9_1 + w9zd9_2)/2 -if numpeers=3, then distot=(w9zd9_1 + w9zd9_2 + w9zd9_3)/3 Thanks, in advance, for the help! -- Casey A. Klofstad University of Miami Department of Political Science Coral Gables, FL klofs...@gmail.com http://www.as.miami.edu/personal/cklofstad/ ______________________________________________ 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.