[R-sig-ME] glmm question

Ben Bolker bbolker at gmail.com
Wed Sep 2 22:13:57 CEST 2015

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On 15-09-02 02:45 PM, Joaquín Aldabe wrote:
> Hello, I sent this message but not sure if you received. I really 
> appreciate any comment. Thanks a lot, Joaquín.

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never hurts to try to make your question narrower, or more precise, or
explain the context better, or provide a reproducible example
<http://tinyurl.com/reproducible-000> (I see that you did include data
and scripts, but these sometimes get stripped by the mailing list.
Also, people are more likely to respond to a *minimal* example, e.g. a
message that says "there's something wrong in these 5 lines of code"
rather than "my script is attached, please see my questions therein".)
 (Asking good questions is hard; so is finding the time to answer them.)

  Ben Bolker

> 2015-09-01 17:58 GMT-03:00 Joaquín Aldabe
> <joaquin.aldabe at gmail.com>:
>> Hello, I´m trying to model de abundance of a grassland shorebird 
>> (Buff-breasted Sandpiper, BBSA) as a function of the abundance of
>> American Golden Plover (AMGP) abundance, grass height and
>> distance to the lagoon. I´m using area as an offset.
>> I´ve tried a glmm with poisson errors and wanted you to see if
>> residuals are fine (they don´t look great, but wanted to know if
>> they area minimally acceptable). Also, I´m trying to understand
>> two way interactions but I´m no sure how to proceed, and also
>> would like to plot the interactions and unique variables effects
>> (can you please provide suggestions?).
>> I also have problems with the predict function. In the script are
>> the notes. I´m attaching the data as well as the script with
>> commentaries.
>> Let me know if there´s some format problem with the files.
>> Thank you very much in advanced.
>> Joaquín.
>> -- *Joaquín Aldabe*
>> *Grupo Biodiversidad, Ambiente y Sociedad* Centro Universitario
>> de la Región Este, Universidad de la República Ruta 15 (y Ruta
>> 9), Km 28.500, Departamento de Rocha
>> *Departamento de Conservación* Aves Uruguay BirdLife
>> International Canelones 1164, Montevideo
>> https://sites.google.com/site/joaquin.aldabe 
>> <https://sites.google.com/site/perfilprofesionaljoaquinaldabe>

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