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st: Re: ML estimation

From   "Rodrigo A. Alfaro" <[email protected]>
To   <[email protected]>
Subject   st: Re: ML estimation
Date   Sat, 29 Apr 2006 08:48:07 -0400

Dear Marcel,

Hard to see the problem.

(1) change line mleval `I2' = `b' eq(2)
for mleval `I2' = `b', eq(2)

(2) do you have an open dataset when you type
-ml check-?

(3) if you type -set trace- after -ml model- and run it
you will see every step in the process.

Good luck, Rodrigo.

----- Original Message ----- 
From: "marcel spijkerman" <[email protected]>
To: <[email protected]>
Sent: Saturday, April 29, 2006 4:24 AM
Subject: st: ML estimation

Dear stata-users,

I want to estimate by ML a model with two equations. The structure of the 
program is as follows:

program define hshazll2
version 8.2
args todo b lnf

tempvar I1 I2 h1 h2 sum1 sum2 ST1 ST2 last lnfi

mleval `I1' = `b'
mleval `I2' = `b' eq(2)


When I call the program with the following line:
ml model d0 hshazll (I1: y1 = x1 x2) (I2: y2 = x3 x4)
and continue with a check:
ml check

I get the message "no varlist allowed"
In the MLE  book by Gould I find similar examples that seem to work. What is
wrong here?

Marcel Spijkerman

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