Coefficient constraint
Posted: Fri Feb 08, 2013 9:15 am
Hi, I am running a pooled regression, pool is called geo:
geo.ls(cx=f) log(y_?) log(x1_?) log(x2_?) @cxreg log(x3_?)
and I want to constrain the coefficient on x3 to be >0.
I have seen the other posts on constraints, but I cannot figure out a 'hack' for this.
Any suggestions on specification?
Thanks for any ideas.
ZHS
geo.ls(cx=f) log(y_?) log(x1_?) log(x2_?) @cxreg log(x3_?)
and I want to constrain the coefficient on x3 to be >0.
I have seen the other posts on constraints, but I cannot figure out a 'hack' for this.
Any suggestions on specification?
Thanks for any ideas.
ZHS