Non-Linear Regression

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Non-Linear Regression

Pierre Scotney-2

Hi!

I am looking for a least-squares non-linear regression routine for
octave that minimizes multivariant functions and produces a correlation
matrix for the estimated parameters. Could someone please point me in
the right direction.

Regards

Pierre.

--
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Dr Pierre Scotney
St. Vincent's Institute of Medical Research
University of Melbourne
Australia
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Re: Non-Linear Regression

Francesco Potorti`-9
This  is  a  FAQ.   I  took  from  the  mathworks  contrib  dir  a  program
implementing the Levenberg-Marquardt nonlinear regression method.  I looked
around for the latest version of this software, which was modified by three
people.    I   then   adopted   it   to   Octave.   I   now   put   it   on
ftp://fly.cnuce.cnr.it/pub/software/octave/.

I'd like to  publish this under the  GPL.  To this end, I  tried to contact
the authors.   Arthur jutan responded, saying  that he has  no objection as
long  as authorship is  acknowledged, but  I didn't  manage to  contact the
others.  I'll try harder when I have  time, but if someone else does it, it
will be quicker.

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Francesco Potortì (researcher)         Voice:    +39-050-593 203 (op. 211)
Computer Networks Group                Fax:      +39-050-904052
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Installing Octave for Windows 95

Fletcher, John P
I want to put togetgher a new installation of Octave on a
computer running Windows 95 OSR2.  The latest Win95 binary seems to
be Octave 2.0.13.  There are later versions of the Cygwin software,
eg. B20.1.  I have another computer where I have B19 running.  Which
version of the Cygwin software should I use, and is there a later
version of Octave (2.0 series) available for Win95?

Thank you

John Fletcher

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Dr John P. Fletcher          Tel: (44) 121 359 3611 ext 4625
Department of Chemical Engineering and Applied Chemistry (CEAC),
Aston University,            Fax: (44) 121 359 4094
Aston Triangle,              Email: [hidden email]
BIRMINGHAM B4 7ET  U.K.  
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Installing Octave for Windows 95

Dirk Eddelbuettel

  John> I want to put togetgher a new installation of Octave on a computer
  John> running Windows 95 OSR2.  The latest Win95 binary seems to be Octave
  John> 2.0.13.  There are later versions of the Cygwin software, eg. B20.1.
  John> I have another computer where I have B19 running.  Which version of
  John> the Cygwin software should I use,

Under NT 4.0 SP3, I used 2.0.13 with cygwin b19, and it didn't work very well
 [ compared to the Linux version ] when more memory was used.

However, with a new computer, I tried cygwin b20.1 and it works very well.
The downside is that it is a bit of a pain to install. You
-- need to install cygwin b20.1 (and better take the version with compiler)
-- should install egcs 1.2 from Mumit Khan's site which can be installed
   over cygwin b20.1 (Mumit is core contributor to egcs)

These two give you a "core Unix under Windows". Now you can compile.

For Octave to work well, you need to install
-- a less binary (I believe there is one on Octave's site)
-- a gnuplot binary and a fixed pipe-gnuplot (see the Octave site)

  John> and is there a later version of Octave (2.0 series) available for
  John> Win95?

I don't think someone has contributed a binary package.  I recompiled Octave
2.0.14 (worked without a glitch), and run it daily at work.  

Hope this helps, Dirk

--
According to the latest figures, 43% of all statistics are totally worthless.


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Where is info? (was Re: Installing Octave for Windows 95)

Fletcher, John P
> Date:          Tue, 11 May 1999 19:41:21 -0400 (EDT)
> To:            [hidden email]
> Cc:            help-octave <[hidden email]>
> Subject:       Installing Octave for Windows 95
> From:          Dirk Eddelbuettel <[hidden email]>

>
>
> Under NT 4.0 SP3, I used 2.0.13 with cygwin b19, and it didn't work very well
>  [ compared to the Linux version ] when more memory was used.

Thank you for this, which is more or less what I have done so far.
When I try to run the help index it cannot find info, which seems not
to be in either octave or the B19 distribution.

>
> However, with a new computer, I tried cygwin b20.1 and it works very well.
> The downside is that it is a bit of a pain to install. You
> -- need to install cygwin b20.1 (and better take the version with compiler)
> -- should install egcs 1.2 from Mumit Khan's site which can be installed
>    over cygwin b20.1 (Mumit is core contributor to egcs)
> <snip>
> Hope this helps, Dirk

Indeed it does.  Does B20 have info in it?

Thanks

John

>
> --
> According to the latest figures, 43% of all statistics are totally worthless.

An underestimate, I'lld say.  What are the error bounds?

 
-------------------------------------------------------------------
Dr John P. Fletcher          Tel: (44) 121 359 3611 ext 4625
Department of Chemical Engineering and Applied Chemistry (CEAC),
Aston University,            Fax: (44) 121 359 4094
Aston Triangle,              Email: [hidden email]
BIRMINGHAM B4 7ET  U.K.  
-------------------------------------------------------------------
CEAC Web site http://www.ceac.aston.ac.uk/
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Re: Where is info? (was Re: Installing Octave for Windows 95)

Fletcher, John P
> Date:          Thu, 13 May 1999 09:39:20 -0400
> From:          Charles Wilson <[hidden email]>
> To:            [hidden email]
> Cc:            [hidden email]
> Subject:       Re: Where is info? (was Re: Installing Octave for Windows 95)

>
> Try the following:
> ftp://ftp.franken.de/pub/win32/develop/gnuwin32/cygwin/porters/Khan_Mumit/ports/info-2.18-cygb20.exe.gz
>
> --Chuck

Chuck

Great - got it.  Thank you very much.

Query: Will that work with cygwin B19, or do I have to upgrade to B20
or B20.1?

Thanks

John


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Re: Non-Linear Regression

Haisam K. Ido-3
In reply to this post by Francesco Potorti`-9
Francesco Potorti` wrote:

> ftp://fly.cnuce.cnr.it/pub/software/octave/.

        when I try to go to the above mentioned site I get:

                FTP Error

                Could not login to FTP server

>

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Regards,
Haisam K. Ido <[hidden email]>

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