Hi Vincenzo,
There are a couple of things that might be worth considering.
In your first model you consider only main effects and no interactions.
Do any of your main effects drop off after you run stepAIC? If so, when
you go to build an interaction model don't include these main effects
only
Dear R Ecology Group Members,
I have data on parasite prevalences (coded as 0s or 1s) for several species
of parasites of one host species, and I am interested in seeing if these
parasites can predict health parameters that I measured in the hosts. I
wanted to tackle this with a multiple regressi
