Re: [R] glmmPQL help

From: Prof Brian Ripley <>
Date: Tue 18 Jul 2006 - 02:57:24 EST

On Mon, 17 Jul 2006, Zython wrote:

> I need to use the glmmPQL function for an assignment, but when I call for the
> summary of the function, it gives the AIC a value of NA. How do I get R to
> give me the AIC value?

You did!

Hint: have you read the reference of which this is part of the support software? If so you will know that you need a maximized likelihood to evaluate AIC, and your fit is not an MLE.

Brian D. Ripley,        
Professor of Applied Statistics,
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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