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Re: st: No model significance test result for the 2nd model equation in MLE?


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: No model significance test result for the 2nd model equation in MLE?
Date   Wed, 16 Sep 2009 19:53:17 +0000 (GMT)

--- On Wed, 16/9/09, Tao Xiao wrote:
> I need to specify more than one model equations in 
> -ml model- command. However, after the MLE routine ran to
> reach the maximum likelihood with the data, the 
> -ml display- command can only display model significance
> test result of the 1st model equation in the header above
> the coefficient table - a Wald chi2 statistic value and
> the corresponding p-value. Because in our research, the
> model significance test result of the 2nd model equation
> is also important, I wonder if there is any way to display
> the model significance test results of the second model
> equation, or of more than two model equations. Or, can I
> get model significance test result for all the model
> equations combined together, not just for the 1st model
> equation?

If you want to display that test for each equation separately,
you will probably have to perform these tests -quietly- and
use -display- to display the results in some convenient way.
You can however force Stata to display a test whether the
effects of all covariates in multiple equations are
simultaneously equal to zero. This is done in your -ml model-
statement using the -waldtest()- option.

Hope this helps,
Maarten

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://www.maartenbuis.nl
--------------------------


      


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