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Re: ASCII file format for sparse matrices?
From: |
Rik |
Subject: |
Re: ASCII file format for sparse matrices? |
Date: |
Tue, 24 May 2011 11:00:12 -0700 |
Rui,
Yes, in fact there is a very simple format. Check the function
spconvert(). Basically, all you need is a file with a 3-column format of
ROW, COL, VALUE. This is easier than trying to hack Octave's
compressed-column format. Note, it relies on Octave's load command which
works on ordinary text files to first create a full array with the data
from the file and then converts that.
Sample File
2 1 0.5
1 4 1.1
Sample Code
tmp = load ("Sample File");
spmat = spconvert (tmp);
clear tmp;
--Rik
- ASCII file format for sparse matrices?, Rui Maciel, 2011/05/12
- Re: ASCII file format for sparse matrices?, Jordi GutiƩrrez Hermoso, 2011/05/12
- Re: ASCII file format for sparse matrices?, David Bateman, 2011/05/12
- Re: ASCII file format for sparse matrices?, Rui Maciel, 2011/05/12
- Re: ASCII file format for sparse matrices?, David Bateman, 2011/05/13
- Re: ASCII file format for sparse matrices?, Rui Maciel, 2011/05/13
- Re: ASCII file format for sparse matrices?, david moloney, 2011/05/13
- Re: ASCII file format for sparse matrices?, Jordi GutiƩrrez Hermoso, 2011/05/13
- Re: ASCII file format for sparse matrices?, Rui Maciel, 2011/05/13
Re: ASCII file format for sparse matrices?, Rui Maciel, 2011/05/12
Re: ASCII file format for sparse matrices?,
Rik <=