On Jul 18, 2011, at 01:11 , Rolf Turner wrote: > This > more sophisticated solution is a pain in the pohutukawa ( :-) ) to calculate > by hand, but if you've > got a computer to do the nasty arithmetic for you, then why not?
Yes. Notice the irony: Textbook authors choose the simplest approximations, because they are easier to understand and generalize more readily; computer software implements improved approximations for common special cases, because it can. When the software gives results that do not agree with the textbooks, people think that the software is wrong... -- Peter Dalgaard Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd....@cbs.dk Priv: pda...@gmail.com ______________________________________________ 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.
