. help levelsof
. levelsof country if e(sample)
(Please explain where user-written programs you refer to come from.)
Nick
On Wed, Jan 2, 2013 at 10:23 AM, Dithmer, Jan
<jdithme@food-econ.uni-kiel.de> wrote:
> I am currently performing a panel analysis using xtabond2 and, depending on the variables included, the number of groups used in the regression varies.
> is there an easy way to get a list if the groups (id, for example countries) used in a regression after having performed the estimation?
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