Hi Jorge,
Did you ever figure this out? I want to do the same thing with the
additional constraint of the coef for x1 = 2.
lm(Y~offset(2*x1)+x2+x3,data=mydata)
where b= coeff for x2, c = coeff for x3, b+c=1 and b and c>0.
I've loaded the systemfit package, but the suggestion "R*beta0 = q, where R
is R.restr and q is q.restr in the function call" makes no sense to me.
Cheers,
Rosie
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