Am 13.02.2025 um 19:41 schrieb Allin Cottrell:
On Wed, 12 Feb 2025, Sven Schreiber wrote:
Here's a tested variant of what I meant:
<hansl>
open grunfeld
# how many periods (here: years) to average
newfreq = 4
# a dummy for endpoints
series endpoint = (time % newfreq == 0) # 'time' already in dataset
small refinement: I remembered (or was reminded) that we also have the
$time accessor in gretl, so we do not need to rely on a series "time"
already being in the dataset. So the line can be written as:
series endpoint = ($time % newfreq == 0)
...
Again, is the old solution (starting with "But back in my day...")
really still needed?
Probably not, but if it's omitted it may be worth inserting the
example from chapater 15 rather than just giving a reference to it.
[about interaction dummies] Hm, the links are even clickable, it's not a
"dumb" reference, so I'm not sure the content would have to be repeated...
...
HOWEVER, for the "dataset compact 1" line gretl tells me "not
supported", and I don't understand why. Shouldn't it be quite easy to
compact from any periodicity down to 1?
That's now fixed, but there's more to say about it when we get a chance.
OK, looking forward to it.
cheers
sven
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