[R-sig-ME] Mixed model for count data with overdispersion

[Mehdi Abedi]

Thanks Manabu,
It is a bit complicated for me but If i have this data:
Parameter: Totalseedling
fixed effect: Heatsmoke, cold
random effect: plot

I should do something like this?!


Model1<- MCMCglmm(Totalseedling ~ Heatsmoke *Cold, random =
~Plots,family="poisson", data = growthdata)
 summary( Model1)
It looks i can not get anova() here for output as well?


I am not familiar with other details in the MCMCglmm:

library( MCMCglmm)
Model1<- MCMCglmm(Totalseedling ~ Heatsmoke *Cold, random = ~Plot,
+ family = "poisson", data = growthdata, prior = prior,
+ verbose = FALSE, pr = TRUE)

Warm regards,
Mehdi

On Mon, Aug 10, 2015 at 12:48 PM, Manabu Sakamoto <manabu.sakamoto at gmail.com
> wrote:

> Dear Mehdi,
>
> You can use the function MCMCglmm in the package of the same name,
> specifying family="poisson". MCMCglmm automatically accounts for over
> dispersion in count data.
>
> best regards,
> Manabu
>
> On 10 August 2015 at 06:54, Mehdi Abedi <abedimail at gmail.com> wrote:
>
>> Dear all,
>>
>> I had quick search but it looks there is no simple way in lme4 or  nlme In
>> the case of overdispersion for count data,. How we can run mixed model for
>> count data with family of quasipoisson or maybe NB?
>>
>> I my working on seeding emergence with 2 fixed factor (n=10) and i would
>> like to have my plot as replicate(n=5) as a random.
>>
>> Warm regards,
>> Mehdi
>>
>> --
>>
>>
>> *Mehdi Abedi Department of Range Management*
>>
>> *Faculty of Natural Resources & Marine Sciences *
>>
>> *Tarbiat Modares University (TMU) *
>>
>> *46417-76489, Noor*
>>
>> *Mazandaran, IRAN *
>>
>> *mehdi.abedi at modares.ac.ir <Mehdi.abedi at modares.ac.ir>*
>>
>> *Homepage
>> <http://www.modares.ac.ir/en/Schools/nat/Academic_Staff/~mehdi.abedi>*
>>
>> *Tel: +98-122-6253101 *
>>
>> *Fax: +98-122-6253499*
>>
>>         [[alternative HTML version deleted]]
>>
>> _______________________________________________
>> R-sig-mixed-models at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-sig-mixed-models
>>
>
>
>
> --
> Manabu Sakamoto, PhD
> manabu.sakamoto at gmail.com
>



-- 


*Mehdi Abedi Department of Range Management*

*Faculty of Natural Resources & Marine Sciences *

*Tarbiat Modares University (TMU) *

*46417-76489, Noor*

*Mazandaran, IRAN *

*mehdi.abedi at modares.ac.ir <Mehdi.abedi at modares.ac.ir>*

*Homepage
<http://www.modares.ac.ir/en/Schools/nat/Academic_Staff/~mehdi.abedi>*

*Tel: +98-122-6253101 *

*Fax: +98-122-6253499*

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