I think that the constraint definition should be
constraint 1 [eq2]_cons=1.45
That is, it should not include the word "define."
I'm not sure about the [eq2] part. I'm still working on ml stuff myself...
> From: [email protected]
> Subject: st: putting constraint on self-written program using ml d0
> To: [email protected]
> Date: Wed, 26 Aug 2009 16:54:06 -0400
>
> Hi all,
>
> I wrote a program using ml package with d0 method. The purpose of the
> program is similar with the ordered probit regression command oprobit.
> After I define the program, I would like to impose some constraints on
> the parameter of the cut-off values. E.g. I use ml model as
>
> ml model d0 etai (hlthc=age gender index, nocons) /a1 /a2 /a3 /a4,
> constraint (1)
>
> where a1 a2 a3 a4 are four seperate equations defined in the program to
> substitute in four cut-off values with "mleval" (we have 5 outcomes of
> y in the data). How can I define the constraint? When I tried
>
> constraint 1 define [eq2]_cons=1.45
>
> or
>
> constraint 1 define [eq2]a1=1.45
>
> it gave me some error message. Do you know the reason for this? Thanks
> a lot!
>
> Jinhu
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