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MathGroup Archive 2005

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Re: fitting a function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg58355] Re: fitting a function
  • From: "Jens-Peer Kuska" <kuska at informatik.uni-leipzig.de>
  • Date: Tue, 28 Jun 2005 21:56:51 -0400 (EDT)
  • Organization: Uni Leipzig
  • References: <d9r4r4$557$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

<<NumericalMath`SplineFit`

and look into the documentation.

Regards

  Jens



"Bosch, Darrell" <bosch at vt.edu> schrieb im 
Newsbeitrag news:d9r4r4$557$1 at smc.vnet.net...
>
> Dear Group,  I have two questions:  First, I 
> want to fit a function
> relating utility to income based on some 
> elicited data.  For example,
> the following pairs might represent the income 
> and utility values for an
> individual:  {10,000, .3}, {15,000, .5}, 
> {20,000, .6}, {25,000, .65}  I
> want to fit the data to a function and plot the 
> resulting function.
> What is the best way to do this?  PolynomialFit 
> seems like a logical
> choice, but it's not clear to me from the 
> documentation how to specify
> the command for a series of pairs of points.
>
>
>
> Second, how do I plot the resulting value of a 
> polynomial fit in the
> example below?  My 'ParametricPlot' command 
> doesn't do the job.  Thanks
> in advance for your help.  Darrell Bosch
>
>
>
> << "NumericalMath`PolynomialFit`"
>
> In[28]:=
>
> p = PolynomialFit[{1, 4, 9,
>
>    16, 25, 36, 49}, 3]
>
> ParametricPlot[p, {p, 0, 6}, PlotRange -> All, 
> Compiled -> True]
>
>
>
>
> 



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