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Re: FindFit

  • To: mathgroup at smc.vnet.net
  • Subject: [mg119618] Re: FindFit
  • From: SigmundV <sigmundv at gmail.com>
  • Date: Tue, 14 Jun 2011 06:14:01 -0400 (EDT)
  • References: <isfnsa$btu$1@smc.vnet.net>

On Jun 5, 1:04 pm, sathyanarayana <sathyapalad... at 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... at 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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