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From | Alex Olssen <alex.olssen@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | Re: st: lpoly predict residuals |
Date | Tue, 14 Jun 2011 08:42:56 +1200 |
I think the option generate may allow you to get residuals. sysuse auto, clear lpoly price weight, nograph at(weight) generate(fitted) gen residuals = fitted - price Is this what you want? Kind regards, Alex Olssen On 14 June 2011 01:23, Maarten Buis <maartenlbuis@gmail.com> wrote: > 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/ > * * 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/