Subject: Re: CCL:Best Fitting Algorithms

From: Arnold Neumaier <[email-masked]>
Date: Thu, 26 Oct 1995 11:54:25 +0100

>>I'm interested in your opinions about various best fitting
algorithms for non-linear optimization. Output of my
program (an electrochemical simulator) is a wave (couple
of calculated points) which must be compared with experimental
data.<<

you can get a least squares code for data fitting in fortran77
by sending an email with body

send nsf.f from port

to [email-masked] or to any other netlib site (add the line

send index

to get more info about netlib).
nsf.f minimizes the sum of squares of a vector-valued function,
using function values only, and hence is well-suited to your 
purpose. Usually, it is much faster than simplex-like methods.

----------------------------------------------------
Prof. Dr. Arnold Neumaier
Institut fuer Mathematik
Universitaet Wien
Strudlhofgasse 4
A-1090 Wien
Austria
Tel: +431 407 63632 (new!)
FAX: +431 31367 4040
email: [email-masked]
www: http://solon.cma.univie.ac.at/~neum/
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