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st: Esttab error: too many base levels

From   "John Hund" <[email protected]>
To   <[email protected]>
Subject   st: Esttab error: too many base levels
Date   Mon, 18 Oct 2010 15:02:47 -0500

I get an error when I'm using esttab after storing results (using eststo)
from a regression using xtreg...I can output individual results as in:

esttab est1, cells("b se t") drop(*.year)

but not all as in:

esttab, cells("b se t") drop(*.year)

which produces

Too many base levels

This seems to only be a problem when I use the year dummies as in

xtreg y x1 x2 i.year, fe

where years run from 1950 to 2010. Occasionally this is a problem without
using the year dummies, but when there are a fairly large number of stored
estimates (i.e. 10) from running eststo with by. Is this a memory issue
(increasing memory doesn't seem to help though) or is there a work around
other than outputting each estimate separately?


John Hund
Visiting Assistant Professor of Finance
Jones Graduate School of Business
Rice University
Houston, TX 77005

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