[Gretl-users] Restriction on coefficient of a linear regression
I would like to apply a restriction on the coefficients of a linear
regression (OLS). Indeed, coefficients will represent the yield of a
crop (soybeans, corn...) for a specific grade (my data) during its
lifecycle.
How can I apply a restriction on coefficients: I want them to be all
positive and that the first coefficient (grade poor crop) is lower than
the second (grade fair crop), the second coefficient lower than the
third (grade good crop)...
Thanks in advance
JCB <http://www.roquette.com/>
French gretl user
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