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Re: lsqcurvefit alternative


From: Olaf Till
Subject: Re: lsqcurvefit alternative
Date: Wed, 28 Feb 2007 13:38:01 +0100
User-agent: Mutt/1.5.9i

On Wed, Feb 28, 2007 at 04:01:50PM +1300, Ana Rakonjac wrote:
> On 2/27/07, Henry F. Mollet <address@hidden> wrote:
> > Will below help?
> > Henry
> > octave:1> help leasqr
> >
> > leasqr is the user-defined function from the file
> > /usr/local/share/octave/2.1.71/site/m/octave-forge/optim/leasqr.m
> >
> > function [f,p,kvg,iter,corp,covp,covr,stdresid,Z,r2]=
> >                   leasqr(x,y,pin,F,{stol,niter,wt,dp,dFdp,options})
> >
> > Levenberg-Marquardt nonlinear regression of f(x,p) to y(x).
> > Cut details
> >
> >
> > on 2/26/07 2:44 PM, Ana Rakonjac at address@hidden wrote:
> >
> 
> 
> Unfortunately that doesn't help. That's some other optimisation
> routine that Matlab has as well.

Maybe you are mistaking that for 'lsqr'.

Matlabs lsqcurvefit lets you choose between 3 optimization methods,
one of which is the Levenberg-Marquardt method. The latter is provided
by octaves 'leasqr'.

Olaf


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