Model                                     AIC       deltaAIC        AIC wgtModel Likelihood        no.Par.     -2*LogLike
psi(.),p(.)                             26.02           0.00         0.2978         1.0000              2          22.02
psi(.),p(rain)                          26.24           0.22         0.2668         0.8958              3          20.24
psi(gully),p(.)                         26.54           0.52         0.2296         0.7711              3          20.54
psi(gully),p(rain)                      26.76           0.74         0.2057         0.6907              4          18.76
