What do you mean by average? Do you want to take all models < 2 AIC and "average" those models out? How would you define non-mathematically average?
So I'm picking up a project that a colleague abandoned when he moved. I'm performing a regression with frog occupancy as a function of several habitat characteristics using R. I've calculated my AIC table but need to model average for the models the were <2 AIC points. Does any one have any experience with this and and writing the code for it in R?