Model                                     AIC       deltaAIC        AIC wgtModel Likelihood        no.Par.     -2*LogLike
psi(.),p(.)                             55.33           0.00         0.3811         1.0000              2          51.33
psi(gully),p(.)                         55.50           0.17         0.3500         0.9185              3          49.50
psi(.),p(rain)                          57.33           2.00         0.1402         0.3679              3          51.33
psi(gully),p(rain)                      57.50           2.17         0.1288         0.3379              4          49.50
