R help - Jul 2003 - Quasi AIC

Dear all,

Using the quasibinomial and quasipoisson families results in no AIC being
calculated. However, a quasi AIC has actually been defined by Lebreton et al
(1992). In the (in my opinon, at least) very interesting book by Burnham and
Anderson (1998,2002) this QAIC (and also QAICc) is covered. Maybe this is
something
that could be implemented in R.

Take a look at page 23 in this pdf:

http://www.springer-ny.com/supplements/0387953647/Preface_Contents_and_Chapter_8.pdf

Lebreton, J-D et al. (1992) Modeling Survival and Testing Biological Hypotheses
Using Marked Anomals: A Unified Approach with Case Studies. Ecological
Monographs,
62(1), 67-118.

Burnham, K.P. & Anderson, D.R. (2002) Model Selection and Multi-Model
Inference - A
Practical Information-Theroretic Approach (2nd Ed). Springer Verlag.

//Henric

Henric Nilsson wrote:
> 
> Dear all,
> 
> Using the quasibinomial and quasipoisson families results in no AIC being
> calculated. However, a quasi AIC has actually been defined by Lebreton et
al
> (1992). In the (in my opinon, at least) very interesting book by Burnham
and
> Anderson (1998,2002) this QAIC (and also QAICc) is covered. Maybe this is
something
> that could be implemented in R.
> 
> Take a look at page 23 in this pdf:
> 
>
http://www.springer-ny.com/supplements/0387953647/Preface_Contents_and_Chapter_8.pdf
> 
> Lebreton, J-D et al. (1992) Modeling Survival and Testing Biological
Hypotheses
> Using Marked Anomals: A Unified Approach with Case Studies. Ecological
Monographs,
> 62(1), 67-118.
> 
> Burnham, K.P. & Anderson, D.R. (2002) Model Selection and Multi-Model
Inference - A
> Practical Information-Theroretic Approach (2nd Ed). Springer Verlag.

Well, I tried to send a private message, but the e-mail address you have
specified seems to be unknown for your mail server ... Please fix it
before posting messages.

If you think QAIC is useful and there's no implemented solution yet (I
haven't found any in a *quick* search through CRAN packages), patches
and suggestions including code and documentation are welcome as usual (I
don't know that much about QAIC, and cannot judge its worth, though).

Uwe Ligges