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| From | Maarten buis <maartenbuis@yahoo.co.uk> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: pre-set the ancillary paramaters in a parametric survival model |
| Date | Sun, 17 Apr 2011 10:45:02 +0100 (BST) |
--- On Fri, 15/4/11, Albert Navarro wrote: > somebody knows if it is possible to previously set the > ancillary paramaters in a parametric survival model? I would > like to study the performance of a given theoretical model > (eg, weibull with p=0.5) in a serial of samples by > calculating residuals as a result of comparing the > theoretical model with the observed data. You can define a constraint using -constraint- and estimate your model with that constraint. I wrote a Stata tip on that which will appear in the next issue of the Stata Journal. You can see a pre-publication draft here: <http://www.maartenbuis.nl/publications/sigma_rho.html> 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/