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Re: getting AIC/likelihood from model coefficients

Excuse me, do you have reference on "Deviance(null) - Deviance(fit) = 2(L(model)-L(null))"? 


With  2(L(model)-L(null) do you mean it's "2 log likelihood" or "2 log (L0/L1)"?  Shouldn't it be "-2 log likelihood", or the equation of Deviance(null) - Deviance(fit) ignore the negative (-) sign?


Sorry for the rapid question.

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