If you can somehow add the sign of the output to the root square error,
nlm, nlminb, and many options within optimx accept bounds.
--------------------------------------
Jonathan P. Daily
Technician - USGS Leetown Science Center
11649 Leetown Road
Kearneysville WV, 25430
(304) 724-4480
"Is the room still a room when its empty? Does the room,
the thing itself have purpose? Or do we, what's the word... imbue it."
- Jubal Early, Firefly
r-help-boun...@r-project.org wrote on 12/20/2010 01:13:53 PM:
> [image removed]
>
> Re: [R] How to optimize function parameters?
>
> zbynek.jano...@gmail.com
>
> to:
>
> r-help
>
> 12/20/2010 02:35 PM
>
> Sent by:
>
> r-help-boun...@r-project.org
>
>
> Thanks for your suggestions, I will certainly look at that
>
> To answer your question...
> I can calculate root square error between empirical data a those
predicted
> by model (I used this to optimize the parameters using gafit()).
>
> --
> View this message in context: http://r.789695.n4.nabble.com/How-to-
> optimize-function-parameters-tp3095603p3095938.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
