st: AW: Re: AW: RE: marginal effects for IV ordered probit

["Martin Weiss" <martin.weiss1@gmx.de>]

<> 


Just say 


*************
which mfx
*************

to see your version of -mfx-.

No, I do not have a good idea how you can get the se. If you -force- it, you
are on your own...


HTH
Martin

-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von xueliansharon
Gesendet: Samstag, 24. Juli 2010 21:16
An: statalist@hsphsun2.harvard.edu
Betreff: st: Re: AW: RE: marginal effects for IV ordered probit

Hi Martin,

So do you mean that you didn't get an error message when you computed
marginal effects after running my example of cmp on your Stata?

I don't know how to check the version of my "mfx", but my stata version is
11.1, so I guess the version of "mfx" in my stata should not be the old one,
then how can I get the correct standard errors? Do you have any suggestions?

Many thanks,
Sharon

<> 

There is always a good reason why Stata refuses to do certain things, so 
-force- may not be such a good idea. Could also be that you are simply out 
of luck with the se for the marginal effect. -h cmp- does state that "force 
may be needed when running old versions of mfx to stop this behavior." But 
"old" is apparently defined as pre January 2008 versions of -mfx-, which 
mine is not. 



HTH 
Martin 
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