As always, Frank, thanks for the help. Much appreciated.
Mike Babyak Department of Psychiatry and Behavioral Sciences Duke University Medical Center R version 3.01 Windows 7
______________________________________________ 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.
