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Old 01-11-2019, 03:37 PM
Actuarially Me Actuarially Me is offline
Join Date: Jun 2013
Posts: 134

Thanks, you're a life saver! Do you ever get abnormally high AIC's? Like 10M?
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Old 01-11-2019, 03:44 PM
itGetsBetter itGetsBetter is offline
Join Date: Feb 2016
Location: Midwest
Studying for Awaiting Exam 9 Result
Favorite beer: Spruce Springsteen
Posts: 249

Since the AIC scales linearly with the number of parameters it is easily possible to get a high AIC score. However, its absolute size is really not all that important.

Instead, the AIC is used mainly to select between different models where the lowest score is the most preferable. The difference in the AIC scores for two different models can be interpreted as 'extra information lost' by using the worse model in comparison to the better model.
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glm tweedie, weights

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