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Re: octave eigs function


From: Poulette Poulette
Subject: Re: octave eigs function
Date: Mon, 27 May 2013 19:17:09 +0100 (BST)

Sounds ok
Thank you very much for tour help !


De : "Abbott, Ben" <address@hidden>
À : Poulette Poulette <address@hidden>
Cc : help octave <address@hidden>
Envoyé le : Jeudi 23 mai 2013 3h02
Objet : Re: octave eigs function

On May 23, 2013, at 7:42 AM, Ben Abbott wrote:

> On May 22, 2013, at 10:25 PM, Poulette Poulette wrote:
>
>> De : Jordi Gutiérrez Hermoso <address@hidden>
>> À : Poulette Poulette <address@hidden>
>> Cc : help octave <address@hidden>
>> Envoyé le : Mercredi 22 mai 2013 16h01
>> Objet : Re: octave eigs function
>>
>>> On 22 May 2013 08:06, Poulette Poulette <address@hidden> wrote:
>>>> I have Octave version 3.6.4 for mac (osX 10.8.3).
>>>
>>> How did you install it, Mme Poulette?
>>>
>>>> I don't know how to use/obtain eigs function to calculate eigen vectors and
>>>> eigenvalues.
>>>
>>> You only need eigs if you're working with sparse matrices or if you
>>> only want a few eigenvalues of your matrix. Otherwise you can use eig.
>>>
>>>> The error is : "eigs: not available in this version of Octave"
>>>
>>> However you obtained Octave, it looks like you compiled it without
>>> ARPACK. You need to recompile Octave with ARPACK support.
>>>
>>> - Jordi G. H.
>>
>> I installed the octave-devel +atlas+docs through macports (I already have Xcode, Xquartz, etc...).
>>
>> "port installed" gives : arpack @3.1.2_1+accelerate+gcc47+openmpi (active)
>> Thus I suppose Arpack to be installed...
>>
>> Thanks
>
> *** Please don't top post.  By replying at the bottom of the email, it is easier to follow the conversation ***
>
> Looking at the portfile for octave-devel it appears that the arpack dependency is missing.  It is likely that you built octave prior to installing arpack.
>
>     http://www.macports.org/ports.php?by=name&substr=octave-devel
>
> Can you file a bug report with macports?
>
>     http://trac.macports.org/report/1
>
> I've modified their portfile and renamed the port "octave36".  I've fixed the lib-dependencies and the run-dependencies.  To use a local portfile, refer to the link below.
>
>     http://guide.macports.org/chunked/development.local-repositories.html
>
> Or you should be able to fix things by working around the bugs in the octave-devel portfile by first manually installing the lib and run dependencies, uninstalling octave-devel, and then reinstalling octave-devel.
>
>     sudo port install arpack +atlas
>     sudo port install epstool
>     sudo port install transfig
>     sudo port install pstoedit
>     sudo port uninstall octave-devel
>     sudo port install octave-devel +atlas+fltk
>
> Since this will rebuild Octave from scratch, installing octave-devel should take much more time than the rest.
>
> Ben
>
> <Portfile>

I've added a report to macports bug tracker.

    http://trac.macports.org/ticket/39201

Ben



-----------------------------------------------
Ben Abbott | Development Fellow | TriQuint Semiconductor, Inc.
1818 S. Orange Blossom Tr | Apopka, FL 32703 | ☎ (407) 884-3418 | ✉ address@hidden






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