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Re: NNLS function


From: Dmitri A. Sergatskov
Subject: Re: NNLS function
Date: Wed, 08 Jun 2005 09:14:40 -0600
User-agent: Mozilla Thunderbird (X11/20050322)

Frank Palazzolo wrote:


However, I'm not sure if that's legal, since the comments say: "Adapted from
NNLS of Mathworks, Inc.". (Unless you own Matlab?)

That said, it is an optimized version of the algorithm which is supposedly
faster and more flexible than the one in MATLAB.

If it's not buried somewhere in octave already, the "right thing" is

This would be a very bad thing to do actually. That would be a
violation of Mathwork copyright. If one wants to write a nnls
and contribute it to octave, she should not even look at
this particular code, but rather get a book

 Lawson and Hanson, "Solving Least Squares Problems", Prentice-Hall, 1974.

(and perhaps those two references from readme.txt)

and implement the algorithm from scratch.

probably for someone to do a clean reimplementation of this, based only on
the 2 references cited in the included readme.txt file.

Thanks,
-Frank


Sincerely,

Dmitri.
--



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