[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
st: inequality constraints for regression models
we want to estimate a regression model (Zellners SUR model) with some
restrictions on parameters and equal explanatory variables. Especially we
want to say that the parameters have to be between 0 and 1.
At the moment we wrote
Constraint define 1 [eq1]variable1>=0 & [eq1]variable1<=1
Sureg (yvar1-yvar3 = variable1), cons(1)
The error message we get is
'not possible with test – r(131)'
What did we wrong? Finally, it turns out that the question is: How to write
Thank you in advance,
* For searches and help try: