New function: lsqnonlin

[Ben Abbott]

On Apr 2, 2008, at 2:54 PM, Jonathan Stickel wrote:
> On 4/2/08 octave-maintainers-request at octave.org wrote:
>> Date: Wed, 02 Apr 2008 14:17:14 -0400
>> From: "John W. Eaton" <jwe at bevo.che.wisc.edu>
>> Subject: New function: lsqnonlin
>> To: Bill Denney <bill at denney.ws>
>> Cc: octave maintainers mailing list <maintainers at octave.org>
>> Message-ID: <18419.52650.282129.215132 at segfault.lan>
>> Content-Type: text/plain; charset=us-ascii
>> On  1-Apr-2008, Bill Denney wrote:
>> | Attached is lsqnonlin.
>> I applied this changeset.  Please remember to add new functions to  
>> the
>> SOURCES list in the correspoding Makefile.in file.
>
> How does this function compare to "leasqr" in octave-forge?
>
> Jonathan

The title to the thread is incorrectly labeled. It should read  
"lsqnonneg", not "lsqnonlin"

In any event, the principle difference is that lsqnonneg constrains  
the solution to non-negative values.

 From the "other program's" help ;-)

  LSQNONNEG Linear least squares with nonnegativity constraints.
     X = LSQNONNEG(C,d) returns the vector X that minimizes NORM(d-C*X)
     subject to X >= 0. C and d must be real.

Ben