Thread Subject: curve fitting with and equation

Hi,
  I have a curve. I have to fit it with a known equation and then I have to find out a parameter from that equation. How can I do this.
Thank you.
Som

"Sunipa Som" <sunipa_som@yahoo.com> wrote in message <iarphs$b1s$1@fred.mathworks.com>...
> Hi,
> I have a curve. I have to fit it with a known equation and then I have to find out a parameter from that equation. How can I do this.
> Thank you.
> Som

Hi Som

Let assume that you know values of the curve in several points. If your "known function" is a linear combination of known functions of independent variables at that points, your problem is a linear regression, otherwise you have to use nonlinear regression.
You may not expect better answer to your vague question.

Mira

"Sunipa Som" <sunipa_som@yahoo.com> wrote in message
news:iarphs$b1s$1@fred.mathworks.com...
> Hi,
> I have a curve. I have to fit it with a known equation and then I have to
> find out a parameter from that equation. How can I do this.
> Thank you.
> Som

You can also use the curve fitting toolbox:
http://www.mathworks.co.uk/products/curvefitting/

HTH,

Arnaud