[R] best predictive model for mixed catagorical/continuous variables

[Robert Baer]

> I would expect that there will be interactions between variables eg. if 
> the
> vegetation is grassland then the vegetation height variable will mediate 
> the
> interaction, if the vegetation is arable then crop type will be more
> significant.
>
> Would it be possible to use GLM or GAM models for this type of predictive
> modelling?
The answer is probably.  I would recommend getting a copy of:
Mixed Effects Models and Extensions in Ecology with R (Statistics for 
Biology and Health) by Alain F. Zuur, Elena N. Ieno, Neil Walker, and 
Anatoly A. Saveliev Springer, 2009)

It covers things very nicely and gives specific R code.

Rob