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| From | Maarten Buis <maartenlbuis@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: lpoly predict residuals |
| Date | Mon, 13 Jun 2011 15:23:14 +0200 |
On Mon, Jun 13, 2011 at 3:12 PM, Stefan Pichler wrote: > I have trouble predicting the residuals after the lpoly command. I first run "lpoly y x" on my dataset and then use "predict" to get residuals. However, Stata returns "not sorted", which I don't understand. Whether or not -predict- is allowed after a command can be seen by looking at -help <command> postestimation- where <command> needs to be replaced by whatever command you want to look at. There is no such help file for -lpoly-. Another hint that this may be problematic is that -predict- is for use after estimation commands, which leave things behind in e(), while the helpfile for -lpoly- says it leaves things behind in r(). These two things suggest to me that you cannot use -predict- after -lpoly-. 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/