Model                                     AIC       deltaAIC        AIC wgtModel Likelihood        no.Par.     -2*LogLike
psi(.),p(.)                            273.24           0.00         0.4455         1.0000              2         269.24
psi(.),p(rain)                         274.13           0.89         0.2855         0.6408              3         268.13
psi(gully),p(.)                        275.24           2.00         0.1639         0.3679              3         269.24
psi(gully),p(rain)                     276.13           2.89         0.1050         0.2357              4         268.13
