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RE: st: RE: specification test after non-linear regression


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: specification test after non-linear regression
Date   Wed, 16 Jun 2010 17:55:22 +0100

Sure. Plot residuals vs fitted values, observed vs fitted values, residuals vs predictors etc. All these ideas carry over pretty well from linear to nonlinear models of the kind you are dealing with. 

Nick 
n.j.cox@durham.ac.uk 

Cindy Gao

I realise that a test for omitted nonlinear variables would not make that much sense for -nl- models in general, but is there no other way of testing/checking how 'good'/appropriately specified a -nl- model is (other than just looking at the Rsq)? 


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