On Tue, 16 Feb 2010, [ISO-8859-1] Patricio Cuar�n wrote:
 Between the two *smpl* I changed the sample via GUI.
 About the rest, I understand what you're saying. Should it use the
 pre-sample periods? 
If it didn't, it would be inconsistent with all other gretl
commands that involve lags.
Allin