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Non Negative Least Squares - NNLS [message #78209]

Thu, 03 November 2011 13:21

rogass
Messages: 200
Registered: April 2008

Senior Member

Hi Folks,
does somebody have a working implementation of the NNLS and can kindly
provide this?

Cheers

CR

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Re: Non Negative Least Squares - NNLS [message #78308 is a reply to message #78209]

Thu, 03 November 2011 13:31

wlandsman
Messages: 743
Registered: June 2000

Senior Member

A generalization of NNLS is available at

http://www-astro.physics.ox.ac.uk/~mxc/idl/bvls.pro

--Wayne

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Re: Non Negative Least Squares - NNLS [message #78353 is a reply to message #78209]

Tue, 08 November 2011 13:54

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

On Nov 3, 3:21 pm, chris <rog...@googlemail.com> wrote:
> Hi Folks,
> does somebody have a working implementation of the NNLS and can kindly
> provide this?

For simple problems, you might also consider running the MPFIT family
of functions with parameter constraints that force the parameters to
be non-negative.

Craig

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