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MathGroup Archive 2005

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Re: Nonlinear Fittings: range / boundaries are not working :(

  • To: mathgroup at smc.vnet.net
  • Subject: [mg53949] Re: [mg53898] Nonlinear Fittings: range / boundaries are not working :(
  • From: "Janos D. Pinter" <jdpinter at hfx.eastlink.ca>
  • Date: Sat, 5 Feb 2005 03:15:02 -0500 (EST)
  • References: <200502022310.SAA11925@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Chris,

try NMinimize or [my] third-party products MathOptimize and 
MathOptimizePro. The optimizers allow the inclusion of constraints (not 
only bounds, but arbitrary continuous functions) in your model formulation.

Best regards,
Janos
_________________________________________________

Janos D. Pinter, PhD, DSc
President & Research Scientist, PCS Inc.
Adjunct Professor, Dalhousie University, Halifax, NS, Canada
Research Fellow, University of Ballarat, Vic., Australia

129 Glenforest Drive, Halifax, NS, Canada B3M 1J2
Telephone: +1-(902)-443-5910
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Software products: http://www.pinterconsulting.com/Software_Sum_Info.pdf


At 07:10 PM 2/2/2005, you wrote:
>Hi all,
>
>I have a hunch that the problem is already known in this group.
>
>But to put it clear:
>
>In functions like NonlinearRegress, you can formally use the syntax
>"{symbol, min, max}" - but it is not working!
>
>I found already few posts about it. But still no clear and
>easy-to-understand solution can be found (at least I did not find it...).
>
>So, if somebody already solved it, and wrote a code which fixes that
>behavior (*any* other reasonable solution is also welcome) - please share
>it with me ;)
>
>
>
>Regards, Chris
>
>
>
>P.S. Mathematica 4.2, Windows 2000 - if anyone cares.


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