[R] glm help

[Joaquín Aldabe]

Thankyou all by the comments and sorry for not sending in the adequate
format. I don't have the chance to make txt archives as open office doesn't
do it. I'm attaching the data in excel. Please let me know if this is ok.

The graph that is wierd to me is the BBSA vs AMGP. It is supposed that AMGP
has a positive effect on BBSA, but the model fit shows a negative slope. In
other forum I was told to plot each variable with fixed values of the other
two variables, and make different curves for each variable.

Thanks again for your interest and help.

All the best,
Joaquín

2015-08-19 12:54 GMT-03:00 Joaquín Aldabe <joaquin.aldabe at gmail.com>:

> Dear All, I´m running a glm with poisson errors and have a doubt when
> ploting the predicted values. One of my variables has a positive slope in
> the summary output, but when I plot the predicted values on the original
> plot it draws a line with negative slope. I appreciate your comments on
> this and any other aspect of the analysis.
>
> Attached is the script and data in different formats just in case.
>
> Thanks 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>
>
>


-- 
*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>