Model                                     AIC       deltaAIC        AIC wgtModel Likelihood        no.Par.     -2*LogLike
psi(.),p(rain)                         251.16           0.00         0.6334         1.0000              3         245.16
psi(gully),p(rain)                     253.16           2.00         0.2330         0.3679              4         245.16
psi(.),p(.)                            254.90           3.74         0.0976         0.1541              2         250.90
psi(gully),p(.)                        256.90           5.74         0.0359         0.0567              3         250.90
