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Re: leasqr help
From: |
Sergei Steshenko |
Subject: |
Re: leasqr help |
Date: |
Fri, 11 Apr 2008 09:59:52 -0700 (PDT) |
--- Francesco Potorti` <address@hidden> wrote:
> As far as I can understand, leasqr should have no
> problems minimising the sum of any distance, if properly modified, and
> the modifications would be minimal, as I suggested in my previous mails.
>
I learned this stuff many years ago, but I think least squares solvers are based
on the fact that the sum of distances is the some of squares.
I think that based on this fact the problem becomes the one of solving linear
equations
system, and that is done by applying derivative to the some of squares. I mean,
applying
derivatives produces the linear equations system to be solved.
So, I do not think that for other than least squares target minimization
modifications
will be minimal.
Regards,
Sergei.
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Re: leasqr help, Archambault Fabien, 2008/04/09