Am 06.06.2015 um 18:34 schrieb Allin Cottrell:
On Thu, 4 Jun 2015, Koray Simsek wrote:
> Dear Allin,
>
> I am sorry that the two lines I sent in my original post do not replicate
> the issue in the current snapshot as they were run in an older gretl
> where
> MAIC was used as the test-down criteria and selected a smaller lag value
> for test-down in LRM.
>
> Sven explained my point perfectly. If you run ADF for LRY (not LRM) as
> follows, you'll notice that AIC below the regression output is different
> from the AIC for k=0 in the test-down procedure. This is because the
> regression is run on the full-sample whereas the test-down is done for
> the
> lag 5 compatible sample.
OK, thanks, now I see. This should be fixed in current CVS and snapshots.
And which of the two samples is used now, starting at t0 + maxlag or at
t0 + bestlag?
thanks,
sven