[R] one more piece of info on AIC

[Rolf Turner]

On 01/06/12 02:52, Mark Leeds wrote:
> just one other thing about the AIC issue:
>
> there is a line in glm.fit which is the following:
>
> aic = aic(y, n, mu, weights, dev) + 2 * rank
>
> but I couldn't find the function aic so I couldn't investigate further. It
> looks suspicious though because it seems to me like
> it should be
>
> aic =  -2*likelihood + 2 * rank
>
> if anyone could help me find the aic function it's appreciated.

Dear Mark,

The aic() function depends on the family that you are using.

E.g.:

     binomial()$aic
     gaussian()$aic

     cheers,

         Rolf