Probably not. This is a statistics issue, not an R issue. But you need to show us your code to make sure it's not a syntax error. Assuming it's not, you'll need to consult a local statistical expert for help.
Bert [[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.