Hi,
I am getting the following error: Error in if ((sum > 0 && sums1 > 0 && sums2 > 0) != NA) { : missing value where TRUE/FALSE needed I have including my code below for your review: fitness_1_data [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.