Re: Fitting a function to a list (newbie)
- To: mathgroup at smc.vnet.net
- Subject: [mg21873] Re: Fitting a function to a list (newbie)
- From: "Allan Hayes" <hay at haystack.demon.co.uk>
- Date: Wed, 2 Feb 2000 22:54:30 -0500 (EST)
- References: <872jej$civ@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
The standard package Statistics`NonlinearFit` has a suitable funtion.
Allan
---------------------
Allan Hayes
Mathematica Training and Consulting
Leicester UK
www.haystack.demon.co.uk
hay at haystack.demon.co.uk
Voice: +44 (0)116 271 4198
Fax: +44 (0)870 164 0565
<mathprof at bigfoot.com> wrote in message news:872jej$civ at smc.vnet.net...
> I'm new to Mathematica 4.0, so I apologize if this question is overly
> trivial (and please let me know if there's a place for trivial
> question).
>
> I have a list that I'd like to fit to the function:
>
> A + B*Sin[C*x+D]
>
> In other words, I'd like to find the (approximate numeric) values of
> A,B,C,D that yield the best fit to my data.
>
> I tried using Fit[], but it only applies to linear combinations of
> functions, and couldn't optomize the values of C and D.
>
> For this specific problem, I'm guessing some sort of Fourier transform
> might work, but I'm interested in a more general solution -- for example
> if Sin[] were replaced with a more complicated function.
>
> Any help appreciated!
>
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.
>