Model                                     AIC       deltaAIC        AIC wgtModel Likelihood        no.Par.     -2*LogLike
psi(.),p(.)                             26.86           0.00         0.3851         1.0000              2          22.86
psi(.),p(rain)                          27.08           0.22         0.3450         0.8958              3          21.08
psi(bush),p(.)                          28.85           1.99         0.1424         0.3697              3          22.85
psi(bush),p(rain)                       29.07           2.21         0.1275         0.3312              4          21.07
