R help - Apr 2005 - Test for autocorrelation in nlme model

Dear all,

I am fitting a nonlinear mixed-effects model from a balanced panel of data using
nlme. I would like to know whay would be the best options for formally testing
for autocorrelation. Is it possible to carry out a Durbin-Watson test on a nlme
object? As far as I've seen, I think the durbin.watson function from the car
package just works on lm objects.

Thank you very much,

Antonio

Have you reviewed Pinheiro and Bates (2000) Mixed-Effects Models in S 
and S-PLUS (Springer)?  They provide examples with diagnostic plots, 
confidence intervals and likelihood ratio tests in sec. 5.3, for example.

	   spencer graves

Revilla,AJ (pgt) wrote:
> Dear all,
> 
> I am fitting a nonlinear mixed-effects model 
from a balanced panel of data using nlme. I would
like to know whay would be the best options for
formally testing for autocorrelation. Is it
possible to carry out a Durbin-Watson test on a
nlme object? As far as I've seen, I think the
durbin.watson function from the car package just
works on lm objects.
> 
> Thank you very much,
> 
> Antonio
> 
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