[R] Positive log-likelihood in lme

[Ingmar Visser]

Hi Peter,
Why do you think positive log-likelihoods are unusual?
consider:
> dnorm(1,1,0.1)
[1] 3.989423
> log(dnorm(1,1,0.1))
[1] 1.383647
Any log-likelihood would be a sum of such terms.
Hth, ingmar


On 2/16/05 11:02 PM, "Peter Alspach" <PAlspach at hortresearch.co.nz> wrote:

> 
> Kia ora
> 
> I'm a using lme (from nlme package) with data similar to the Orthodont dataset
> and am getting positive log-likelihoods (>100).  This seems usual and I
> wondered if someone could offer a possible explanation.
> 
> I can supply a sample dataset if requested, but I feel almost certain that
> this question has been asked and answered recently.  However, I can find no
> trace of it in the mail archives (although I have spent several hours reading
> lots of other interesting things :-)).
> 
> Thanks .........
> 
> Peter Alspach
> 
> 
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Ingmar Visser
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