Groups > comp.soft-sys.math.mathematica > #3090

Re: FindFit

From	SigmundV <sigmundv@gmail.com>
Newsgroups	comp.soft-sys.math.mathematica
Subject	Re: FindFit
Date	2011-06-14 10:13 +0000
Organization	Steven M. Christensen and Associates, Inc and MathTensor, Inc.
Message-ID	<it7c94$625$1@smc.vnet.net> (permalink)
References	<isfnsa$btu$1@smc.vnet.net>

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On Jun 5, 1:04 pm, sathyanarayana <sathyapalad...@gmail.com> wrote:
> Hi,
>
> I have experimental data as y=f(x)
>
> and I need to fit using Levenberg-Marquardt method
>
> my model looks like  y=f1(t) and x=f2(t)
>
> I would really appreciate any help on this
> issue
>
> sathyanarayana
> paladugu_sat...@yahoo.com

Sathyanarayana,

Your problem description as slightly ambiguous. I take it that you
have a list of x coordinates, generated from a function f2(t), and a
list of y coordinates generated from a function f1(t). You then want
to fit a model f to the data. What's your upshot of a model? Did I
understand your problem correctly?

Once you have a model you want to fit, you can use Mathematicas
FindFit function, which takes the option Method ->
"LevenbergMarquardt".

Sigmund

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FindFit sathyanarayana <sathyapaladugu@gmail.com> - 2011-06-05 11:04 +0000
  Re: FindFit Gary Wardall <gwardall@gmail.com> - 2011-06-10 10:38 +0000
  Re: FindFit Gary Wardall <gwardall@gmail.com> - 2011-06-10 10:39 +0000
  Re: FindFit SigmundV <sigmundv@gmail.com> - 2011-06-14 10:13 +0000

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