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Re: matlab "sparse" function
From: |
Daniel Heiserer |
Subject: |
Re: matlab "sparse" function |
Date: |
Fri, 08 Jan 1999 12:16:58 +0100 |
Pablo Ledesma wrote:
> Is there anything similar to the matlab "sparse" function in octave?
>
> Thanks,
> Pablo
>
> -------------------------------------------------------------------------
> Pablo Ledesma Larrea Universidad Carlos III de Madrid
> Butarque 15, 28911 Leganes, Madrid Spain Email: address@hidden
> -------------------------------------------------------------------------
I don't think so.
Somebody has posted some operations on sparse matrices in the last year.
He used a 3/4 by N Matrix to express a M times M sparse matrix A. (N was the
number of nonzeros in A).
You can use "find" to create something like that.
=========
I miss the matlab 5 and especially the matlab 4 features/datastructures a
lot as
there are:
o sparse matrices
o cell structures
I know that somebody has to implement them, but my c++/numerical know-how is
poor and
my time is probably too short (as of most others).
Structs already exist, but afair they couldn't be saved inside octave.
Anyway octave is cool and provides a lot of features.
--
Mit freundlichen Gruessen
Daniel Heiserer
-----
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Dipl.-Phys. Daniel Heiserer, BMW AG, Knorrstrasse 147, 80788 Muenchen
Abteilung EK-20
Tel.: 089-382-21187, Fax.: 089-382-42820
mailto:address@hidden