On Mon, 20 Aug 2012, William Dunlap wrote:
This is where summary(as.d) can give information that str(as.d) does not.
Bill, Ah, ha! That finds the error: all observations are in one era. I did not notice that before. A valuable lesson for me. Thank you very much, Rich ______________________________________________ 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.
