Re: How I can fit data with a parametric equation?
- To: mathgroup at smc.vnet.net
- Subject: [mg91848] Re: How I can fit data with a parametric equation?
- From: Luca Petrone <luke-sky-walker at hotmail.it>
- Date: Wed, 10 Sep 2008 05:08:17 -0400 (EDT)
> Hello everybody,
> I have a list of {x,y} data and from a theoretical
> calculation I know
> that the data should be fitted by an equation, for
> example:
>
> y=ax+bx+c; where a, b, c are constant parameters.
>
> The question is how i can find the best fit for my
> data finding the
> value of this parameters.
>
> Do mathematica has a specific function for that?
> Thanks a lot.
> Dino
>
Given A your collection of {x,y} data, just :
FindFit[A, a x + b, {a, b}, x]
(careful, y = ax + bx + c should just be y = (a + b)x + c = dx + c !)
Luca P.