--- GUO Lei <[email protected]> wrote:
> [sorry to post it again]
I replied, see:
http://www.stata.com/statalist/archive/2007-04/msg00194.html
-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
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