Model                                     AIC       deltaAIC        AIC wgtModel Likelihood        no.Par.     -2*LogLike
psi(.),p(.)                             16.55           0.00         0.4359         1.0000              2          12.55
psi(gully),p(.)                         17.88           1.33         0.2241         0.5143              3          11.88
psi(.),p(rain)                          17.88           1.33         0.2241         0.5143              3          11.88
psi(gully),p(rain)                      19.20           2.65         0.1159         0.2658              4          11.20
