[R] te( ) interactions and AIC model selection with GAM

[Will Shadish]

Simon, could you clarify this paragraph. We are submitting to a 
psychology journal and I am certain they will be asking us about why it 
is still ok to use AIC for non-nested models. Thanks. Will Shadish

On 8/2/2012 9:49 AM, Simon Wood wrote:
> For AIC model comparison, the usual advice applies that although the 
> comparisons are a bit more reliable for nested models (since then some 
> of the AIC approximations errors are the same in both cases, and 
> cancel in the comparison), it is still ok to use AIC for non-nested 
> models (i.e. it is *not* like most hypothesis testing where everything 
> falls apart if you don't have nesting).
>
> best,
> Simon
>

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