Setting sample size in a pooled panel
Posted: Tue Apr 05, 2011 7:41 pm
I have 30 cross section units each with annual observations of a variable called X over the period 2002 to 2008. I would like to set the sample so that only the cross-section observations for each year that are above the average value of X for each year are included. I would seem to need to enter multiple lines in the sample window, but I just don't know.