> It's fine. Just interpret them as you would any other (lower is better).
>>
>>
> And it is the printed logLik that is out of step here. log-likelihoods
> _should_ be negative.
>

That is not quite the case; in models with small variances log-likelihoods
can easily become positive, consider eg:

> dnorm(0,0,0.1,log=T)
[1] 1.383647

hth, Ingmar



> --
> David.
>
>
>> On 22 August 2012 16:43, Gary Dong <pdxgary...@gmail.com> wrote:
>>
>>> Dear R users,
>>>
>>> I obtained negative AIC and BIC and positive Loglik values in a gls
>>> model.
>>> Is this normal? how should I interpret them? Thanks!
>>>
>>>       AIC       BIC           logLik
>>>  -659.978  -587.5541   345.989
>>>
>>> Best
>>> Gary
>>>
>>
>
> David Winsemius, MD
> Alameda, CA, USA
>
>
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