On Tue, 6 Nov 2007, Greg Snow wrote: > A paper that may help you: > > "Methods for Studying Coincidences", Persi Diaconis; Frederick > Mosteller. Journal of the American Statistical Association, vol 84, no. > 408 (Dec., 1989), 853-861.
The pbirthday()/qbirthday() functions use the approximations in this paper and the help page references it, so it may not be much further assistance. If the problem is parameter values that the functions don't handle, rather than insufficient precision, I would suggest simulation. -thomas Thomas Lumley Assoc. Professor, Biostatistics [EMAIL PROTECTED] University of Washington, Seattle ______________________________________________ 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.