[R-sig-ME] Model selection, LRT test

[Arnaud Mosnier]

Dear list,

If I do not make a mistake, use of Likelihood ratio test is precluded
when two models have the same number of degree of freedom.
Is there a way to test which one is the best when both are close in
AIC value (difference < 5) or do I have to conclude that they are
"equivalent" ?

Thanks

Arnaud