[R-sig-eco] qAIC

[Manuel Spínola]

Dear list members,

I fitted a quasipoisson model and I am trying to get the qAICc with the
function qAICc form the bbmle package I cannot get the value.

quasi - glm(Pt ~ Agua + offset(log(Transecto.1)),
family=quasipoisson(log), data=Abundancia)

val = qAICc(quasi, dispersion = 9.6567, nobs=16)

val
[1] NA

Thank you very much in advance,

Best,

Manuel


-- 
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
COSTA RICA
mspin...@una.ac.cr
mspinol...@gmail.com
Teléfono: (506) 2277-3598
Fax: (506) 2237-7036
Personal website: Lobito de río https://sites.google.com/site/lobitoderio/
Institutional website: ICOMVIS http://www.icomvis.una.ac.cr/

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[R-sig-eco] question about MuMIn package

[Simone Ruzza]

Dear R users,

I would like to use the MuMIn package to perform model average on a
simple GLM containing a mixture of categorical and continuous
predictors. The model.avg functions seems to work with models
containing continuous and categorical variables, but I am wondering
whether somebody could tell me if the relative importance obtained for
categorical predictors (i.e. the selection probability) is meaningful
when using this function?

thanks in advance,

Simone

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