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| From | Maarten Buis <maartenlbuis@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: query on testing uniform distributions |
| Date | Tue, 1 Nov 2011 10:05:04 +0100 |
On Tue, Nov 1, 2011 at 9:53 AM, Nick Cox wrote: > The expected frequencies here are easy to calculate, so I'd move to > Pearson residuals, (observed - expected) / sqrt(expected) and also > plot those against day of year to see what fine structure there is. > The quantile plot is a good starting point, but needs to be followed > up. Just an extra detail on the extra detail: In this case, where the model is a uniform distribution, the division by sqrt(expected) would just rescale all residuals by the same number. I would probably look at the raw residuals, as that way the picture would be exactly the same, but I would find the scale of the residuals to be easier to interpret. Hope this helps, Maarten -------------------------- Maarten L. Buis Institut fuer Soziologie Universitaet Tuebingen Wilhelmstrasse 36 72074 Tuebingen Germany http://www.maartenbuis.nl -------------------------- * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/