I ran the same program that you sent me. It fits the individual models
but not the full model.
. clear*
.
. cmp setup
.
. webuse laborsup
.
. gen byte kids2 = kids + int(uniform()*3)
.
. cmp (kids=fem_educ) (kids2=fem_educ), ind($cmp_oprobit $cmp_oprobit) nolr
Fitting individual models as starting point for full model fit.
Iteration 0: log likelihood = -800.76494
Iteration 1: log likelihood = -800.48687
Iteration 2: log likelihood = -800.48687
:::::results:::::::
Fitting full model.
cmp_lnL(): 3499 ghk2setup() not found
<istmt>: - function returned error
r(3499);
.
. tech(dfp) qui
unrecognized command: tech
r(199);
Error 3499: The specified variable or function could not be found.
In the case of a function, it was not already loaded, it is not
in the libraries, and there is no .mo file with its name.
Sridhar
On Sun, Feb 14, 2010 at 9:41 AM, Martin Weiss <[email protected]> wrote:
>
> <>
>
> This example runs without a hitch for me:
>
> *************
> clear*
> cmp setup
> webuse laborsup
> gen byte kids2 = kids + int(uniform()*3)
> cmp (kids=fem_educ) (kids2=fem_educ), ind($cmp_oprobit $cmp_oprobit) nolr
> tech(dfp) qui
> *************
>
>
> You may want to -ssc uninstall cmp- and then -ssc inst cmp-.
>
> What does -which cmp- give you?
>
>
> HTH
> Martin
>
> -----Ursprüngliche Nachricht-----
> Von: [email protected]
> [mailto:[email protected]] Im Auftrag von Sridhar
> Telidevara
> Gesendet: Sonntag, 14. Februar 2010 15:34
> An: [email protected]
> Betreff: Re: st: RE: Heckman two-step estimator
>
> Thank you Martin. I ran a bivariate seeming unrelated ordered probit
> just to understand the command. It says ghk2setup() not found.
> However, ghk2 is already installed and the software is up-to-date. I
> am using stata11. I also ran an example given in the help. It says the
> same. Searched web to learn more about ghk2setup() but no clue as to
> what is happening.
>
> Any thoughts?
>
> Thanks,
>
> Sridhar
>
> On Sun, Feb 14, 2010 at 4:47 AM, Martin Weiss <[email protected]> wrote:
>>
>> <>
>>
>> Have you tried -ssc d cmp-?
>>
>>
>> HTH
>> Martin
>>
>> -----Original Message-----
>> From: [email protected]
>> [mailto:[email protected]] On Behalf Of Sridhar
>> Telidevara
>> Sent: Sonntag, 14. Februar 2010 08:08
>> To: [email protected]
>> Subject: st: Heckman two-step estimator
>>
>> How would one go about estimating Heckman two-step estimator if both
>> the stages involve ordinal outcomes. Say the first stage has 5 levels
>> and the second stage has 3 levels. How would one calculate
>> inverse-mills ratio in the first step and incorporate them in the
>> second step. I would highly appreciate your help.
>>
>> Thanks,
>>
>> Sridhar
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/statalist/faq
>> * http://www.ats.ucla.edu/stat/stata/
>>
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/statalist/faq
>> * http://www.ats.ucla.edu/stat/stata/
>>
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
