Henrik Andersson [mailto:henrik.andersson@tft.lth.se]
>
> are there any possibilities to put restrictions on parameters in
> regressions (in my case nonlinear), for example >0 and
> <0.5? (I cannot find
> anything on the subject in the "manuals".)
In the first case, say a > 0, sometimes it makes sense
to reparameterise the problem as fitting in log a
and then exponentiate the fitted value.
Nick
n.j.cox@durham.ac.uk
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