Hi Steve, I think you need to use apply() as in the following tiny example:
x <- data.frame(response = c(-121,-131,-135)) apply(x, 1, function(response){rnorm(10, mean = response, sd = rnorm(10, mean = 9.454398, sd = 1.980136))}) Christian ______________________________________________ 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.