Constraint that sum of coefficients equals 1

[hermiola]

Hello,
I have the following probplem.
I need to solve a Probit regression, where for one of the Variables there is a constraint that the parameter estimate should be equal to 1, i.e.

y = Probit( c(1) + c(2)*x + z)

However, it is not clear how to impute such a constrain.
Also, I face a problem that when I use specification as


equation bn1.binary(D=N) y c(1) c(2)*x z

it uses the previously obtained coefficients as inputs

If anyone has any idea, would be really glad.
THank you in advance.

[startz]

How about

Code: Select all

probit y = c(1) + c(2)*x + z