Re: st: mlogtest hausman "invalid syntax" (Stata 8)

[nng@stanford.edu]

Dear Prof. Williams:

Thank you very much -- my Stata 8 will do the IIA tests with your  
ordwarm2 code, but won't work for my own stuff.  Your suggestion to  
check for updatedness is wonderful. I ran my code on Stata 9 with the  
newest version of
-mlogtest-: regular Hausman still won't run, but the suest-based  
Hausman test did.  I'm off to figure out why this is.  Thanks for all  
your help!

Nora



Quoting Richard Williams <Richard.A.Williams.5@ND.edu>:


> At 03:25 AM 5/9/2007, nng@stanford.edu wrote:
> > Hi Statalisters:
> >
> >
> > I ran a multinomial logistic regression with a 3-category dependent
> > variable (the IVs include one continuous variable and 8 dummies), and
> > wanted to test the IIA assumption. The problem is that -mlogtest- will
> > not perform the Hausman test.  I used the -mlogtest- command after
> > running -mlogit-, in different versions: I tried -mlogtest, iia-,
> > -mlogtest, hausman-, and -mlogtest, smhsiao-.  Stata will do the
> > Small-Hsiao test, but it won't run the -mlogtest, iia- and -mlogtest,
> > hausman-  because of "invalid syntax".  I Googled generally and
> > searched the Statalist archives, but have not come across anything
> > directly relevant.  Am I missing something?  What might be causing this?
> I can't replicate the problem.  Do you have the latest version of the
> spost9 routines?  They were last updated on March 4.  Also make sure
> your version of Stata is up to date.  mlogtest itself was last updated
> in December:
>
> . which mlogtest
> c:\ado\plus\m\mlogtest.ado
> *! version 1.7.4 8Dec2006 - suest bug fix
>
> If everything is up to date, perhaps you could try to see if you can
> come up with a replicable example using a publicly available data set,
> e.g. auto.  You may need to contact Scott Long if you think you've
> discovered a bug in his program.
>
> Also, these commands work for me, so see if they work for you:
>
> use "http://www.indiana.edu/~jslsoc/stata/spex_data/ordwarm2.dta";
> mlogit  warm yr89 male white age ed prst
> mlogtest, iia
>
>
>
> -------------------------------------------
> Richard Williams, Notre Dame Dept of Sociology
> OFFICE: (574)631-6668, (574)631-6463
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>
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