Model                                     AIC       deltaAIC        AIC wgtModel Likelihood        no.Par.     -2*LogLike
psi(.),p(rain)                          14.31           0.00         0.4849         1.0000              3           8.31
psi(gully),p(rain)                      15.72           1.41         0.2396         0.4941              4           7.72
psi(.),p(.)                             16.24           1.93         0.1847         0.3810              2          12.24
psi(gully),p(.)                         17.66           3.35         0.0908         0.1873              3          11.66
