--- Wafa Hakim Orman <[email protected]> wrote:
> in which a procedure to restrict one parameter as positive is
> described, but all they appear to be doing is using exp(b) when they
> want to restrict b > 0. Seems to me like that's just a non-linear
> model rather than restricting the parameter. Or am I missing
> something?
If you maximize exp(b), than b=ln(exp(b)) can only have possitive
values, ergo b is restricted to be positive.
> Is there a better way to do this?
Not in Stata
Hope this helps,
Maarten
-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
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