Model                                     AIC       deltaAIC        AIC wgtModel Likelihood        no.Par.     -2*LogLike
psi(.),p(.)                             26.02           0.00         0.4896         1.0000              2          22.02
psi(.),p(rain)                          27.61           1.59         0.2211         0.4516              3          21.61
psi(gully),p(.)                         27.82           1.80         0.1990         0.4066              3          21.82
psi(gully),p(rain)                      29.40           3.38         0.0903         0.1845              4          21.40
