Hi,
Is it possible
to run SUR with weights using systemfit? I mean weighted seemingly unrelated
regression (weighted SUR) or weighted nonlinear unrelated regression (weighted
NSUR). Parresol (2001) in his paper
titled Additivity of nonlinear biomass
equations has run weighted NSUR using PROC MODEL (SAS institute Inc.1993).
I was wondering if r can do that. Thanks.
Tarquinio Mateus
Magalhães
___________________________
Tarquinio Mateus Magalhães
www.tarqmag.blogspot.com
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