Model                                     AIC       deltaAIC        AIC wgtModel Likelihood        no.Par.     -2*LogLike
psi(gully),p(.)                        266.23           0.00         0.5683         1.0000              3         260.23
psi(.),p(.)                            266.78           0.55         0.4317         0.7596              2         262.78
