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Re: Diagonal v. sparse matrices [was Re: deprecated functions]
From: |
John W. Eaton |
Subject: |
Re: Diagonal v. sparse matrices [was Re: deprecated functions] |
Date: |
Thu, 5 Mar 2009 02:57:42 -0500 |
On 5-Mar-2009, Jaroslav Hajek wrote:
| On Wed, Mar 4, 2009 at 10:17 PM, John W. Eaton <address@hidden> wrote:
|
| > What do you mean by "without losing efficiency"? Does
| >
| > a = diag (...);
| > sparse (a);
| >
| > convert A to full first, then sparse?
|
| ... yes.
|
| > If so, it seems that should be fairly easy to fix.
|
| It was really quite straightforward - fix is online.
Thanks.
| > In any case, I think the following change should
| > be made to spdiag. This is much simpler than having to check
| > arguments in spdiag, and will be efficient if the "sparse (diag)"
| > constructor is fixed. But the important thing is that for
| > compatibility with previous versions of Octave, spdiag returns a
| > sparse matrix, not a diag matrix. Do you agree?
|
| Agreed.
OK, I applied that change.
Thanks,
jwe
- Re: deprecated functions, (continued)
- Re: deprecated functions, John W. Eaton, 2009/03/04
- Re: deprecated functions, Jason Riedy, 2009/03/04
- Re: deprecated functions, John W. Eaton, 2009/03/04
- Diagonal v. sparse matrices [was Re: deprecated functions], Jason Riedy, 2009/03/04
- Diagonal v. sparse matrices [was Re: deprecated functions], John W. Eaton, 2009/03/04
- Re: Diagonal v. sparse matrices [was Re: deprecated functions], Jaroslav Hajek, 2009/03/04
- Re: Diagonal v. sparse matrices [was Re: deprecated functions], John W. Eaton, 2009/03/04
- Re: Diagonal v. sparse matrices [was Re: deprecated functions], Jaroslav Hajek, 2009/03/04
- Re: Diagonal v. sparse matrices [was Re: deprecated functions], John W. Eaton, 2009/03/04
- Re: Diagonal v. sparse matrices [was Re: deprecated functions], Jaroslav Hajek, 2009/03/05
- Re: Diagonal v. sparse matrices [was Re: deprecated functions],
John W. Eaton <=
- Re: Diagonal v. sparse matrices [was Re: deprecated functions], Jaroslav Hajek, 2009/03/04
- Re: Diagonal v. sparse matrices, Jason Riedy, 2009/03/04
- Re: Diagonal v. sparse matrices, Jaroslav Hajek, 2009/03/04
- Re: Diagonal v. sparse matrices, Jaroslav Hajek, 2009/03/04
- Re: deprecated functions, Jaroslav Hajek, 2009/03/04
- Re: deprecated functions, John W. Eaton, 2009/03/04
- Re: deprecated functions, Jaroslav Hajek, 2009/03/04
- Re: deprecated functions, John W. Eaton, 2009/03/04
- Re: deprecated functions, Jaroslav Hajek, 2009/03/04
- Re: deprecated functions, John W. Eaton, 2009/03/04