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st: cannot open .stsem file


From   Jeremy Reynolds <[email protected]>
To   "[email protected]" <[email protected]>
Subject   st: cannot open .stsem file
Date   Fri, 13 Sep 2013 16:16:09 -0400

Dear Statalist,

I made a SEM model using the equation builder, and then saved it as a
.stsem file.  The model runs fine both from the .stsem file and from a
do-file (I have pasted the code that Stata echoes in the output window
below).  However, when I close and then attempt to re-open the .stsem
file, I get the error message below.  Does anyone know what is
happening?

This model is based on Paul Allison's SEM version of a cross-lagged
panel model with fixed effects.
http://www.statisticalhorizons.com/wp-content/uploads/2012/01/Causal-Inference.pdf

Thanks,

Jeremy

#delimit ;
sem (mcsr2008@c2 -> mcsr2010) (mcsr2006@c2 -> mcsr2008) (mcsr2004@c2
-> mcsr2006)
(hrmmwf2004@c1 -> mcsr2006) (hrmmwf2006@c1 -> mcsr2008) (hrmmwf2008@c1
-> mcsr2010)
(A@1 -> mcsr2008) (A@1 -> mcsr2006) (A@1 -> mcsr2010) (B@1 -> mcsr2006),
covstruct(_lexogenous,diagonal) cov(_lexogenous*_oexogenous@0)
method(mlmv) latent(A B )
cov( e.mcsr2006@0
hrmmwf2004*mcsr2004 hrmmwf2006*mcsr2004 hrmmwf2008*mcsr2004
hrmmwf2006*hrmmwf2004 hrmmwf2008*hrmmwf2004 hrmmwf2008*hrmmwf2006
A*mcsr2004 A*hrmmwf2004 A*hrmmwf2006 A*hrmmwf2008 B*hrmmwf2008) nocapslatent;
#delimit cr


. sg__model::SelectionsDlg():  3010  attempt to dereference NULL pointer
   sg__model::Selected():     -  function returned error
   sg__model::doaction():     -  function returned error
sg__actionlog::perform():     -  function returned error
    sg__actionlog::run():     -  function returned error
     sg__model::runlog():     -  function returned error
       sg__model::Open():     -  function returned error
     sg__model::signal():     -  function returned error
sg__globalclass::signal():     -  function returned error
                 <istmt>:     -  function returned error
r(3010);

-- 
********************
Dr. Jeremy Reynolds
Associate Professor
Undergraduate Coordinator
Department of Sociology
116 Baldwin Hall
University of Georgia
Athens, GA 30602-1611
Phone: (706) 583-8072
Web: http://uga.edu/soc/people/faculty/reynolds_jeremy.php
Fax: (706) 542-4320
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