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Re: lsqnonlin?

From: Søren Hauberg
Subject: Re: lsqnonlin?
Date: Wed, 04 Apr 2007 16:26:18 +0200
User-agent: Thunderbird (X11/20070307)

I answered an offlist mail form you a couple of hours ago, but here's one for the entire list.
  I ended up using the software from

There are two issues with this package and octave:
  1) Octave doesn't have the rcond function. I made a simple version:
function a = rcond(b)
  a = 1/cond(b);
2) Octave doesn't load functions in "private" directories. The solution is to add these directories manually using "addpath".

Otherwise, the functions work like a charm.


skenny skrev:

i am also trying to run a program (in octave) that uses lsqnonlin and have
had a hard time fiinding a way to do it. i'm wondering if anyone has
actually tried to run this levmar program within octave? or if anyone has
found another way of doing it (?)


Bill Denney wrote:
On Wed, 18 Oct 2006, Søren Hauberg wrote:

Does anything like matlabs lsqnonlin exist for octave? lsqnonlin is a minimization method that uses Levenberg-Marquardt (LM). In octave-forge we have leasqr which is a regression method that uses LM. Can I somehow use that function as a replacement for lsqnonlin? (If so, how?)
You may want to check out which has a GPL'd version of the algorithm available.


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developing Ewoks."
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