Statalist


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: RE: ivprob


From   "Schaffer, Mark E" <M.E.Schaffer@hw.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: ivprob
Date   Tue, 31 Jul 2007 17:37:34 +0100

Anna,

> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu 
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of anna downs
> Sent: Tuesday, July 31, 2007 3:53 PM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: ivprob
> 
> Hi!
> 
> I have a quick query about ivprob.
> 
> If when using ivprob can I just check that I am using it 
> correctly? I have
> written:
> 
> ivprob allwar if baseco==1, endog(avexpr) iv(logem4)
> 
> where 'allwar' is my dependent var, my endogeonous var is 
> 'avexpr', and my IV for avexpr is 'logem4'. I am just looking 
> at eth results from my base sample. However when I have 
> written the above it says 'option exog() required'. However 
> in this first regression I do not want to have any exogeneous 
> variables in the regression. Any suggestions? I have tried 
> just writing 'exog()' but it says again I need an exogenous 
> varibale in the equation.

Why not use official -ivprobit-?  It allows an empty exog list.

--Mark

> Thanks x
> 
> _________________________________________________________________
> Got a favourite clothes shop, bar or restaurant? Share your 
> local knowledge http://www.backofmyhand.com
> 
> *
> *   For searches and help try:
> *   http://www.stata.com/support/faqs/res/findit.html
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
> 

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index