Re: [Gretl-users] sub-sampling panel data
On Sun, 13 Dec 2009, artur bala wrote:
I'm sorry people but I'm feeling lost. I thought the data
were
the problem but it seems not.
Can you please run this script on my data and find out what's
wrong with these topsy-turvy missing values? thanx a bunch!
When you do
smpl FRS=0 --restrict
gretl is attempting to reconstitute a balanced panel for you,
inserting "missing rows" if required. In this case it is
struggling, because your restriction does not leave much of a
panel, and it ends up being more confusing than helpful.
I have now (in CVS) changed the behavior of smpl --restrict so
that it doesn't strive to produce a balanced panel unless you give
the new --balanced option. So, with your dataset and "smpl FRS=0
--restrict", you'd end up with a non-panel: then it's up to you to
see if you can salvage a panel, if you want to.
Allin Cottrell