Model                                     AIC       deltaAIC        AIC wgtModel Likelihood        no.Par.     -2*LogLike
psi(.),p(.)                            226.54           0.00         0.3977         1.0000              2         222.54
psi(gully),p(.)                        226.92           0.38         0.3289         0.8270              3         220.92
psi(.),p(rain)                         228.50           1.96         0.1493         0.3753              3         222.50
psi(gully),p(rain)                     228.87           2.33         0.1241         0.3119              4         220.87
