Re: [Gretl-devel] smpl full
On Thu, 24 Nov 2011, Federico Lampis wrote:
have a question about the use the "smpl full" inside a
function
suppose this case:
nulldata 50
smpl 1 40
smpl full
series t1=time
scalar nt=lastobs(t1)
in a script these commands produce:
Generated scalar nt = 50
But if I write something like this:
nulldata 50
smpl 1 40
function scalar example (----)
smpl full
series t1=time
scalar nt=lastobs(t1)
end function
the scalar is nt=40. The question: there is some trick to recover the
full sample inside a function or the last value of the original full
sample without specify any argument about it in the function
declaration?
The rule is that a function only has access to the data range that
was passed in by the caller. You can subsample within a function but
smpl --full just takes you back to the dataset state as the caller
specified it.
If you want a function to do something with a sub-sample and also to
do something with the full dataset, you can pass in the full dataset
(that is, do "smpl --full" before calling the function) but pass in
the sub-sample information as argument(s). For example int arguments
t1 and t2, or a dummy series.
Allin Cottrell