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| From | Maarten Buis <maartenlbuis@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: predictnl expression too long |
| Date | Fri, 8 Mar 2013 17:48:27 +0100 |
On Fri, Mar 8, 2013 at 5:17 PM, Richard J Swartz <rswartz@rice.edu> wrote: > After reading the comments and help files on predict, it looks like predict() and xb() have set quantities they can produce involving the linear portion of the model (XB). Is this correct? > If so then, unfortunately the function I'm estimating cannot be simplified by predict() or xb() because the function I want to predict use a subset of the linear component, (i.e. a subset of the predictors) as opposed to the full XB linear component. The trick is that if you want the xb excluding the componenent associated with variable x1 than you just type xb() - _b[x1]*x1, which is often a lot shorter than explicitly typing out the components you want to include. -- Maarten --------------------------------- Maarten L. Buis WZB Reichpietschufer 50 10785 Berlin Germany http://www.maartenbuis.nl --------------------------------- * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/