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Re: st: problems with frontier estimation


From   Scott Merryman <scott.merryman@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: problems with frontier estimation
Date   Fri, 12 Mar 2010 13:12:46 -0600

Are the executable and ado-files synchronized?

What does -update query- recommend?

Scott


On Fri, Mar 12, 2010 at 9:01 AM, Camila Alva Estabridis
<camilachay@gmail.com> wrote:
> Hi,
>> I am working estimating a frontier sthocastic function using the frontier
>> command. All was working fine: I could do the estimations, as always....b=
> ut
>> today, I don=B4t know what has happened that I can not run the same do
>> file anymore...the most extrange thing is that my boss can run exactly th=
> e
>> same program on his computer. Does anybody knows what could be happening?
>>
>> The estimation is as simple as this:
>>
>>  #delimit;
>>    frontier lnpi lnprice2 lnprice3
>>      lnw1_fertil lnw1_manure lnw1_wage
>>      lnprice2_lnprice2 lnprice2_lnprice3
>>      lnprice3_lnprice3
>>      lnprice*_lnw1_*
>>      lnw1_wage_lnw1_*
>>      lnw1_manure_lnw1_manure lnw1_manure_lnw1_fertil
>>      lnw1_fertil_lnw1_fertil,
>>    dist(t);
>>
>> and then, it runs:
>>
>> Iteration 0:   log likelihood =3D  -2453.717  (not concave)
>> Iteration 1:   log likelihood =3D -2447.9898
>> Iteration 2:   log likelihood =3D  -2440.184
>> Iteration 3:   log likelihood =3D -2439.8862
>> Iteration 4:   log likelihood =3D -2439.1468
>> Iteration 5:   log likelihood =3D -2439.0261
>> Iteration 6:   log likelihood =3D -2438.8969  (not concave)
>> Iteration 7:   log likelihood =3D -2438.8598
>> Iteration 8:   log likelihood =3D  -2438.837
>> Iteration 9:   log likelihood =3D -2438.8258
>> Iteration 10:  log likelihood =3D -2438.8255
>> Iteration 11:  log likelihood =3D -2438.8255
>> Stoc. frontier normal/truncated-normal model      Number of obs   =3D
>> 1510
>>                                                  Wald chi2(20)   =3D
>> 122.49
>> Log likelihood =3D -2438.8255                       Prob > chi2     =3D
>> 0.0000
>> option nullok not allowed
>>                 stata():  3598  Stata returned error
>>   _b_table::di_titles():     -  function returned error
>>           _coef_table():     -  function returned error
>>                 <istmt>:     -  function returned error
>> r(3598);
>> end of do-file
>> r(3598);
>>
>> but it get stuck before presenting the tables....
>>
> Can anybody help me to understand what the error message r(3598) means?
>
> "[M-2]   error . . . . . . . . . . . . . . . . . . . . . . . . Return code
> 3598
>        Stata returned error
>        You are using a Stata interface function and have asked Stata to
>        perform a task.  Stata could not or refused."

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