Model                                     AIC       deltaAIC        AIC wgtModel Likelihood        no.Par.     -2*LogLike
psi(.),p(.)                            136.51           0.00         0.4703         1.0000              2         132.51
psi(.),p(rain)                         137.72           1.21         0.2568         0.5461              3         131.72
psi(gully),p(.)                        138.47           1.96         0.1765         0.3753              3         132.47
psi(gully),p(rain)                     139.68           3.17         0.0964         0.2049              4         131.68
