Help-octave Digest, Vol 32, Issue 2

Steve MC Han hmc0907 at yahoo.com
Sun Nov 2 05:47:06 CST 2008 

Hi I am a beginner of Octave. How do I install a package?
 
This is from FAQ in Octave-Forge
 
First you need to download the package, by going to the package web page and clicking download. Then start Octave and go to the directory where you placed the downloaded package using the cd command. Then type 
pkg install package_file_name.tar.gz 
where package_file_name.tar.gz is the file name of the package you downloaded.
 
After I followed this direction and typed  pkg list, but it still responds "no packages installed" Where (which directory) do I download? 
 
Thanks
 


--- On Sun, 11/2/08, help-octave-request at cae.wisc.edu <help-octave-request at cae.wisc.edu> wrote:

From: help-octave-request at cae.wisc.edu <help-octave-request at cae.wisc.edu>
Subject: Help-octave Digest, Vol 32, Issue 2
To: help-octave at cae.wisc.edu
Date: Sunday, November 2, 2008, 1:09 AM

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Today's Topics:

   1. help needed (al al)
   2. Re: help needed (S?ren Hauberg)
   3. Re: Octave for Mac OSX (Rob Mahurin)
   4. Re: Octave for Mac OSX (Ben Abbott)
   5. Re: Octave for Mac OSX (Rob Mahurin)
   6. Re: Octave for Mac OSX (editing the Wiki) (Ben Abbott)
   7. Re: Octave for Mac OSX (editing the Wiki) (S?ren Hauberg)
   8. Octave.app 3.0.3 for Mac OS X (Thomas Treichl)
   9. matlab behaviour of gzip (Thorsten Meyer)


----------------------------------------------------------------------

Message: 1
Date: Sat, 1 Nov 2008 21:15:59 +0000
From: al al <linuxuser12 at hotmail.com>
Subject: help needed
To: <help-octave at cae.wisc.edu>
Message-ID: <BAY135-W1651DB0DCF237A8DAC2835BB230 at phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"


Hello,
 
I'm a research student and one part of my research is to use an open source
tool such as octave to detect attacks on off line 
files as Intrusion detection system....We have agreed to use Neural networking
for this problem...
Since I have no experiences in data mining and octave.... I have the following
questions :)
 
1) Does octave is capable of doing this job ? i.e using neural networking to
detect the off line attacks on a system ?
2) Is there any neural network/octave packets that can be installed on ubuntu
hardy from the apt-get ? any docs are welcomed..
3) Is there any on line documents that show you how to use this tool with
examples ( preferably neural network examples ) ?
 
 
I would like to thank any replies or any suggestions..
 
regards
Al


_________________________________________________________________
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------------------------------

Message: 2
Date: Sat, 01 Nov 2008 22:39:58 +0100
From: S?ren Hauberg <soren at hauberg.org>
Subject: Re: help needed
To: al al <linuxuser12 at hotmail.com>
Cc: help-octave at cae.wisc.edu
Message-ID: <1225575598.5812.8.camel at sh-laptop>
Content-Type: text/plain; charset="ISO-8859-15"

l?r, 01 11 2008 kl. 21:15 +0000, skrev al al:
> I have the following questions :)
>  
> 1) Does octave is capable of doing this job ? i.e using neural networking
to detect the off line attacks on a system ?
> 2) Is there any neural network/octave packets that can be installed on
ubuntu hardy from the apt-get ? any docs are welcomed..
> 3) Is there any on line documents that show you how to use this tool with
examples ( preferably neural network examples ) ?
>  
> 
> I would like to thank any replies or any suggestions..

I don't know about your specific problem, so I can't comment there. As
to using Neural Nets with Octave, then there are several solutions.

  * Octave-Forge (http://octave.sf.net) has the 'nnet' package which
    contains functions for Feedforward Neural Nets. I've never used it,
    so I can't comment on how to use it.

  * Some years ago, I created an Octave binding to the FANN library,
    which is a pretty good library for working with Neural Nets. My
    binding is no longer maintained, so I'm not sure if it still
    works. If you feel like trying, you can get it from
    http://hauberg.org/wiki/doku.php?id=octave-fann

  * You can use Bishop's Netlab from
    http://www.ncrg.aston.ac.uk/netlab/index.php
    I think most of this package works with Octave, but I haven't used
    it that much, so I'm not sure. If I were to use Neural Nets (which
    I doubt I would), then I think this would be the software I'd
    choose.

S?ren



------------------------------

Message: 3
Date: Sat, 1 Nov 2008 18:08:13 -0400
From: Rob Mahurin <rob at utk.edu>
Subject: Re: Octave for Mac OSX
To: Thomas Treichl <Thomas.Treichl at gmx.net>
Cc: help-octave at cae.wisc.edu
Message-ID: <A854539D-D028-4A7A-A6D0-58C5A89639AE at utk.edu>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed

On Nov 1, 2008, at 10:48 AM, Thomas Treichl wrote:
> The 3.0.3 announcement will follow this weekend. BTW, building  
> Octave.app is not a secret. The scripts that I'm preparing and that  
> I'm using are all there at the Octave-Forge project in the path  
> admin/MacOSX/...

Not secret, but not easy to find either.  The wiki instructions at  
http://wiki.octave.org/wiki.pl?OctaveForMac don't seem to mention the  
octave-forge scripts.  The download pages linked on http:// 
octave.sourceforge.net have binaries, but not source.  If you follow  
the "SVN" link to http://sourceforge.net/svn/?group_id=2888 , there  
is some boilerplate generic checkout command, a warning that you  
probably don't want _everything_, and --- aha! --- a smallish link to  
"browse the repository".  From here I can make myself a tarball from 

another well-hidden link.

It's a far cry from e.g. octave proper, where a page called  
"download" has a link in a colored box at the top of the page.

Cheers,
Rob

-- 
Rob Mahurin
Department of Physics and Astronomy
University of Tennessee 		865 207 2594
Knoxville, TN 37996 			rob at utk.edu



------------------------------

Message: 4
Date: Sat, 01 Nov 2008 18:31:15 -0400
From: Ben Abbott <bpabbott at mac.com>
Subject: Re: Octave for Mac OSX
To: Rob Mahurin <rob at utk.edu>
Cc: help-octave at cae.wisc.edu
Message-ID: <CC23ABEC-52E1-4264-8C73-35E2B3E3CD48 at mac.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes


On Nov 1, 2008, at 6:08 PM, Rob Mahurin wrote:

> On Nov 1, 2008, at 10:48 AM, Thomas Treichl wrote:
>> The 3.0.3 announcement will follow this weekend. BTW, building
>> Octave.app is not a secret. The scripts that I'm preparing and
that
>> I'm using are all there at the Octave-Forge project in the path
>> admin/MacOSX/...
>
> Not secret, but not easy to find either.  The wiki instructions at
> http://wiki.octave.org/wiki.pl?OctaveForMac don't seem to mention the
> octave-forge scripts.  The download pages linked on http://
> octave.sourceforge.net have binaries, but not source.  If you follow
> the "SVN" link to http://sourceforge.net/svn/?group_id=2888 ,
there
> is some boilerplate generic checkout command, a warning that you
> probably don't want _everything_, and --- aha! --- a smallish link to
> "browse the repository".  From here I can make myself a tarball
from
> another well-hidden link.
>
> It's a far cry from e.g. octave proper, where a page called
> "download" has a link in a colored box at the top of the page.
>
> Cheers,
> Rob

Thomas,

Thanks for posting the info. When I encounter problems building via  
Fink I often thought it would be nice if your scripts were readily  
available ... and they are! I'll be referencing them next time I have  
problems.

Rob,

The contributers each follow their passions. There are many instances  
where I find the approach of others not quite to my liking. My  
solution (as is "Octave proper") is to do something about it myself.
I  
agree it would be nice if Octave's documentation were a bit better. We  
are fortunate that some new contributers have begun taking on this  
task. However, there is still more work than can be easily handled by  
them. If there is some specific you don't think is getting the  
attention it deserves, please contribute. All Mac users (including  
myself) would surely appreciate you effort!

Ben



------------------------------

Message: 5
Date: Sun, 2 Nov 2008 00:40:52 -0400
From: Rob Mahurin <rob at utk.edu>
Subject: Re: Octave for Mac OSX
To: Ben Abbott <bpabbott at mac.com>
Cc: help-octave at cae.wisc.edu
Message-ID: <6189C372-DA20-4ED0-9694-3836E3D1DE6E at utk.edu>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed

On Nov 1, 2008, at 6:31 PM, Ben Abbott wrote:
> Rob,
>
> The contributers each follow their passions. There are many  
> instances where I find the approach of others not quite to my  
> liking. My solution (as is "Octave proper") is to do something  
> about it myself. I agree it would be nice if Octave's documentation  
> were a bit better. We are fortunate that some new contributers have  
> begun taking on this task. However, there is still more work than  
> can be easily handled by them. If there is some specific you don't  
> think is getting the attention it deserves, please contribute. All  
> Mac users (including myself) would surely appreciate you effort!


Hi Ben,

If I had write access to the wiki, I would add a paragraph like

> The scripts used to build the octave-forge Octave.app can be found  
> in <a href="http://octave.svn.sourceforge.net/viewvc/octave/trunk/

> octave-forge/admin/MacOSX/">the sourceforge subversion
repository</a>.

to the section "Source-Compilation" of the page http:// 
wiki.octave.org/wiki.pl?OctaveForMac

Cheers,
Rob

-- 
Rob Mahurin
Department of Physics and Astronomy
University of Tennessee 		865 207 2594
Knoxville, TN 37996 			rob at utk.edu



------------------------------

Message: 6
Date: Sun, 02 Nov 2008 02:20:15 -0500
From: Ben Abbott <bpabbott at mac.com>
Subject: Re: Octave for Mac OSX (editing the Wiki)
To: Rob Mahurin <rob at utk.edu>
Cc: help-octave at cae.wisc.edu
Message-ID: <4D16FFE1-7E5B-4952-A880-CC657AFDEBA3 at mac.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes


On Nov 2, 2008, at 12:40 AM, Rob Mahurin wrote:

> On Nov 1, 2008, at 6:31 PM, Ben Abbott wrote:
>> Rob,
>>
>> The contributers each follow their passions. There are many  
>> instances where I find the approach of others not quite to my  
>> liking. My solution (as is "Octave proper") is to do
something  
>> about it myself. I agree it would be nice if Octave's
documentation  
>> were a bit better. We are fortunate that some new contributers have  
>> begun taking on this task. However, there is still more work than  
>> can be easily handled by them. If there is some specific you don't
 
>> think is getting the attention it deserves, please contribute. All  
>> Mac users (including myself) would surely appreciate you effort!
>
>
> Hi Ben,
>
> If I had write access to the wiki, I would add a paragraph like
>
>> The scripts used to build the octave-forge Octave.app can be found  
>> in <a
href="http://octave.svn.sourceforge.net/viewvc/octave/trunk/octave-forge/admin/MacOSX/

>> ">the sourceforge subversion repository</a>.
>
> to the section "Source-Compilation" of the page
http://wiki.octave.org/wiki.pl?OctaveForMac
>
> Cheers,
> Rob

The wiki certainly needs some work. For example this page below  
indicates that editing is not restricted, but as there have been some  
defacements, it obviously is not.

	http://wiki.octave.org/wiki.pl?UserName

Perhaps David can give us some instruction on how to gain access.

Ben




------------------------------

Message: 7
Date: Sun, 02 Nov 2008 08:36:26 +0100
From: S?ren Hauberg <soren at hauberg.org>
Subject: Re: Octave for Mac OSX (editing the Wiki)
To: Ben Abbott <bpabbott at mac.com>
Cc: help-octave at cae.wisc.edu
Message-ID: <1225611386.5837.1.camel at sh-laptop>
Content-Type: text/plain; charset="ISO-8859-15"

s?n, 02 11 2008 kl. 02:20 -0500, skrev Ben Abbott:
> The wiki certainly needs some work. For example this page below  
> indicates that editing is not restricted, but as there have been some  
> defacements, it obviously is not.
> 
> 	http://wiki.octave.org/wiki.pl?UserName
> 
> Perhaps David can give us some instruction on how to gain access.

Just ask for a password at octave-dev at lists.sourceforge.net (the
Octave-Forge list), and Etienne will provide you with one.

S?ren



------------------------------

Message: 8
Date: Sun, 02 Nov 2008 09:55:39 +0100
From: Thomas Treichl <Thomas.Treichl at gmx.net>
Subject: Octave.app 3.0.3 for Mac OS X
To: octave-forge list <octave-dev at lists.sourceforge.net>,	Octave_post
	<help-octave at octave.org>
Message-ID: <490D6B0B.2000709 at gmx.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Hi,

I have uploaded the compressed disc images *.dmg including Octave.app 3.0.3
for PPC Mac OS X and i386 Mac OS X to the SourceForge's server. You can get
it from http://octave.sourceforge.net. Please read the Readme.html file that
comes with the *.dmg about 'Installation', 'FAQ',
'Limitations', etc.

I'm also very happy to see more than 8.300 downloads over the past 3 months
for Octave.app 3.0.2. However, please don't forget that all this is quite a
lot of work and your help is still needed in the development and contribution
to the GNU Octave project.
Further, if you like GNU Octave then please also think about of making a
donation to the Octave Core Development team. A description can be found
at http://www.gnu.org/software/octave/funding.html.

Recent changes:

- the latest stable Octave 3.0.3 sources available have been used to build
   these binaries,

- Gnuplot.app 4.2.3 can be found in the Extras directory of the *.dmg.
   Again, please read the Readme.html file about 'Installation',
   'Limitations', 'FAQ', etc. for Gnuplot.app of that
compressed disc image.

- the checksums of the *.dmg are
   - MD5 (octave-3.0.3-ppc.dmg) = 29a95fcb883110f3bff3c7c3ac5996cd
   - MD5 (octave-3.0.3-i386.dmg) = 04e5abb7419d24fef70ea4cf662f5c5d

*Note:*

- the 3.0.x Octave.app series will be the last series that *I* also can build
   for PPC Mac OS X 10.3.x too. The new 3.2.x series needs a more modern system
   and therefore requires Mac OS X 10.4.x or higher for both platforms.

Regards,

   Thomas





------------------------------

Message: 9
Date: Sun, 02 Nov 2008 10:09:09 +0100
From: Thorsten Meyer <thorsten.meyier at gmx.de>
Subject: matlab behaviour of gzip
To: help at octave.org
Message-ID: <gejqnl$tq5$1 at ger.gmane.org>
Content-Type: text/plain; charset=ISO-8859-1

Hi,

could someone with access to matlab try what the gzip function produces for
these examples:

 - prepare a few files in the shell:
        mkdir ttt
	mkdir ttt/bla
	mkdir ttt/bla/blubb
	touch ttt/bla/11
	touch ttt/bla/22
	touch ttt/bla/33
        touch ttt/bla/blubb/44
	mkdir ttt/zip
 - then in matlab:
	cd ttt
        gzip("bla")
        ls (or is it dir in matlab?)
	gzip("bla", "zip")
	ls zip

What I am interested in: where do the gzipped files 11.gz etc. end up in both
cases? Do all the .gz
files end up directly in the zip directory or is the directory hierarchy (bla
and bla/blubb)
reproduced under zip?

In octave gzip("bla") gives an error reproduces the directory
hierarchy in the zip directory. And
when gzip is called with out the target directory argument, it gives an error.
I would like to know,
what matlab does before trying to fix this bug.

thanks

Thorsten



------------------------------

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