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Re: st: problems with frontier estimation
From
Camila Alva Estabridis <[email protected]>
To
[email protected]
Subject
Re: st: problems with frontier estimation
Date
Fri, 12 Mar 2010 10:01:47 -0500
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."
>
>
> I hope you can help me,
> Thank you very much,
>
>
> Camila
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