--- P GARCIA <[email protected]> wrote:
> I need to estimate a model using the command xtabond2, but when I use
> it appear the next sentence: "unrecognized command:  merge"
-merge- is a command in official Stata, so if Stata doesn't recognize
it, it seems that your Stata is broken.
Type -which merge- to check whether it is installed. If it is installed
you will get a message like:
C:\Program Files\stata9\ado\updates\m\merge.ado
*! version 2.1.4  16feb2006
if it is not installed you will get a message like:
command merge not found as either built-in or ado-file
If it isn't installed you will probably have to reinstall Stata. 
Hope this helps,
Maarten
-----------------------------------------
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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