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Re: fitting surface with Mathematica 6.0.3 and range of fitted values

  • To: mathgroup at smc.vnet.net
  • Subject: [mg99016] Re: fitting surface with Mathematica 6.0.3 and range of fitted values
  • From: dh <dh at metrohm.com>
  • Date: Fri, 24 Apr 2009 03:46:03 -0400 (EDT)
  • References: <gspgs6$o35$1@smc.vnet.net>


Hi,

it would help if you give a simple example.

Without knowing more, I would guess that your fit "wiggles" between data 

points. This happens mainly if you have a high degree polynomial and 

only a few data points.

Daniel



simonematool at gmail.com wrote:

> Dear All,

> I'm trying to fit a surface with a Fit command and a 4th order

> polynomial and I can get the fit and the model but then I try to

> evaluate some data through the model and they are out of the range of

> the original data,

> I have looked around but I could not find an option to pass into Fit

> command to keep the fitted values in the range of the possible cases

> thanks a lot for your help!!!

> Best Regards to All,

> Simone

> 




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