Mercurial > octave-nkf

annotate src/DLD-FUNCTIONS/ccolamd.cc @ 11586:12df7854fa7c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
strip trailing whitespace from source files
author John W. Eaton <jwe@octave.org>
date Thu, 20 Jan 2011 17:24:59 -0500
parents 01f703952eff
children cf5ebc0e47e4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
1 /*
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
2
11523
fd0a3ac60b0e update copyright notices
John W. Eaton <jwe@octave.org>
parents: 10846
diff changeset
3 Copyright (C) 2005-2011 David Bateman
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
4
7016
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 5771
diff changeset
5 This file is part of Octave.
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 5771
diff changeset
6
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
7 Octave is free software; you can redistribute it and/or modify it
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
8 under the terms of the GNU General Public License as published by the
7016
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 5771
diff changeset
9 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 5771
diff changeset
10 option) any later version.
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
11
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
12 Octave is distributed in the hope that it will be useful, but WITHOUT
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
15 for more details.
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
16
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
17 You should have received a copy of the GNU General Public License
7016
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 5771
diff changeset
18 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 5771
diff changeset
19 <http://www.gnu.org/licenses/>.
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
20
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
21 */
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
22
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
23 // This is the octave interface to ccolamd, which bore the copyright given
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
24 // in the help of the functions.
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
25
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
26 #ifdef HAVE_CONFIG_H
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
27 #include <config.h>
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
28 #endif
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
29
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
30 #include <cstdlib>
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
31
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
32 #include <string>
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
33 #include <vector>
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
34
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
35 #include "ov.h"
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
36 #include "defun-dld.h"
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
37 #include "pager.h"
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
38 #include "ov-re-mat.h"
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
39
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
40 #include "ov-re-sparse.h"
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
41 #include "ov-cx-sparse.h"
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
42
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
43 #include "oct-sparse.h"
8377
25bc2d31e1bf improve OCTAVE_LOCAL_BUFFER
Jaroslav Hajek <highegg@gmail.com>
parents: 7520
diff changeset
44 #include "oct-locbuf.h"
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
45
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
46 #ifdef IDX_TYPE_LONG
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
47 #define CCOLAMD_NAME(name) ccolamd_l ## name
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
48 #define CSYMAMD_NAME(name) csymamd_l ## name
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
49 #else
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
50 #define CCOLAMD_NAME(name) ccolamd ## name
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
51 #define CSYMAMD_NAME(name) csymamd ## name
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
52 #endif
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
53
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
54 DEFUN_DLD (ccolamd, args, nargout,
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
55 "-*- texinfo -*-\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
56 @deftypefn {Loadable Function} {@var{p} =} ccolamd (@var{S})\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
57 @deftypefnx {Loadable Function} {@var{p} =} ccolamd (@var{S}, @var{knobs})\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
58 @deftypefnx {Loadable Function} {@var{p} =} ccolamd (@var{S}, @var{knobs}, @var{cmember})\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
59 @deftypefnx {Loadable Function} {[@var{p}, @var{stats}] =} ccolamd (@dots{})\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
60 \n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
61 Constrained column approximate minimum degree permutation.\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
62 @code{@var{p} = ccolamd (@var{S})} returns the column approximate minimum\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
63 degree permutation vector for the sparse matrix @var{S}. For a non-symmetric\n\
10846
a4f482e66b65 Grammarcheck more of the documentation.
Rik <octave@nomad.inbox5.com>
parents: 10840
diff changeset
64 matrix\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
65 @var{S},\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
66 @code{@var{S}(:, @var{p})} tends to have sparser LU@tie{}factors than\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
67 @var{S}. @code{chol (@var{S}(:, @var{p})' * @var{S}(:, @var{p}))} also\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
68 tends to be sparser than @code{chol (@var{S}' * @var{S})}. @code{@var{p} =\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
69 ccolamd (@var{S}, 1)} optimizes the ordering for @code{lu (@var{S}(:,\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
70 @var{p}))}. The ordering is followed by a column elimination tree\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
71 post-ordering.\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
72 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
73 @var{knobs} is an optional 1-element to 5-element input vector, with a\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
74 default value of @code{[0 10 10 1 0]} if not present or empty. Entries not\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
75 present are set to their defaults.\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
76 \n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
77 @table @code\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
78 @item @var{knobs}(1)\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
79 if nonzero, the ordering is optimized for @code{lu (S(:, p))}. It will be a\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
80 poor ordering for @code{chol (@var{S}(:, @var{p})' * @var{S}(:,\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
81 @var{p}))}. This is the most important knob for ccolamd.\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
82 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
83 @item @var{knobs}(2)\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
84 if @var{S} is m-by-n, rows with more than @code{max (16, @var{knobs}(2) *\n\
7107
22397f0fb0b2 [project @ 2007-11-06 20:31:33 by dbateman]
dbateman
parents: 7017
diff changeset
85 sqrt (n))} entries are ignored.\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
86 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
87 @item @var{knobs}(3)\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
88 columns with more than @code{max (16, @var{knobs}(3) * sqrt (min (@var{m},\n\
7107
22397f0fb0b2 [project @ 2007-11-06 20:31:33 by dbateman]
dbateman
parents: 7017
diff changeset
89 @var{n})))} entries are ignored and ordered last in the output permutation\n\
22397f0fb0b2 [project @ 2007-11-06 20:31:33 by dbateman]
dbateman
parents: 7017
diff changeset
90 (subject to the cmember constraints).\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
91 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
92 @item @var{knobs}(4)\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
93 if nonzero, aggressive absorption is performed.\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
94 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
95 @item @var{knobs}(5)\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
96 if nonzero, statistics and knobs are printed.\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
97 \n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
98 @end table\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
99 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
100 @var{cmember} is an optional vector of length @math{n}. It defines the\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
101 constraints on the column ordering. If @code{@var{cmember}(j) = @var{c}},\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
102 then column @var{j} is in constraint set @var{c} (@var{c} must be in the\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
103 range 1 to\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
104 n). In the output permutation @var{p}, all columns in set 1 appear\n\
7107
22397f0fb0b2 [project @ 2007-11-06 20:31:33 by dbateman]
dbateman
parents: 7017
diff changeset
105 first, followed by all columns in set 2, and so on. @code{@var{cmember} =\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
106 ones(1,n)} if not present or empty.\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
107 @code{ccolamd (@var{S}, [], 1 : n)} returns @code{1 : n}\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
108 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
109 @code{@var{p} = ccolamd (@var{S})} is about the same as\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
110 @code{@var{p} = colamd (@var{S})}. @var{knobs} and its default values\n\
10846
a4f482e66b65 Grammarcheck more of the documentation.
Rik <octave@nomad.inbox5.com>
parents: 10840
diff changeset
111 differ. @code{colamd} always does aggressive absorption, and it finds an\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
112 ordering suitable for both @code{lu (@var{S}(:, @var{p}))} and @code{chol\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
113 (@var{S}(:, @var{p})' * @var{S}(:, @var{p}))}; it cannot optimize its\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
114 ordering for @code{lu (@var{S}(:, @var{p}))} to the extent that\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
115 @code{ccolamd (@var{S}, 1)} can.\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
116 \n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
117 @var{stats} is an optional 20-element output vector that provides data\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
118 about the ordering and the validity of the input matrix @var{S}. Ordering\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
119 statistics are in @code{@var{stats}(1 : 3)}. @code{@var{stats}(1)} and\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
120 @code{@var{stats}(2)} are the number of dense or empty rows and columns\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
121 ignored by @sc{ccolamd} and @code{@var{stats}(3)} is the number of garbage\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
122 collections performed on the internal data structure used by @sc{ccolamd}\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
123 (roughly of size @code{2.2 * nnz (@var{S}) + 4 * @var{m} + 7 * @var{n}}\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
124 integers).\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
125 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
126 @code{@var{stats}(4 : 7)} provide information if CCOLAMD was able to\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
127 continue. The matrix is OK if @code{@var{stats}(4)} is zero, or 1 if\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
128 invalid. @code{@var{stats}(5)} is the rightmost column index that is\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
129 unsorted or contains duplicate entries, or zero if no such column exists.\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
130 @code{@var{stats}(6)} is the last seen duplicate or out-of-order row\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
131 index in the column index given by @code{@var{stats}(5)}, or zero if no\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
132 such row index exists. @code{@var{stats}(7)} is the number of duplicate\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
133 or out-of-order row indices. @code{@var{stats}(8 : 20)} is always zero in\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
134 the current version of @sc{ccolamd} (reserved for future use).\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
135 \n\
10791
3140cb7a05a1 Add spellchecker scripts for Octave and run spellcheck of documentation
Rik <octave@nomad.inbox5.com>
parents: 10527
diff changeset
136 The authors of the code itself are S. Larimore, T. Davis (Univ. of Florida)\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
137 and S. Rajamanickam in collaboration with J. Bilbert and E. Ng. Supported\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
138 by the National Science Foundation (DMS-9504974, DMS-9803599, CCR-0203270),\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
139 and a grant from Sandia National Lab. See\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
140 @url{http://www.cise.ufl.edu/research/sparse} for ccolamd, csymamd, amd,\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
141 colamd, symamd, and other related orderings.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5631
diff changeset
142 @seealso{colamd, csymamd}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5631
diff changeset
143 @end deftypefn")
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
144 {
5771
9c7be8e14b5b [project @ 2006-04-18 19:17:33 by jwe]
jwe
parents: 5760
diff changeset
145 octave_value_list retval;
9c7be8e14b5b [project @ 2006-04-18 19:17:33 by jwe]
jwe
parents: 5760
diff changeset
146
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
147 #ifdef HAVE_CCOLAMD
5771
9c7be8e14b5b [project @ 2006-04-18 19:17:33 by jwe]
jwe
parents: 5760
diff changeset
148
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
149 int nargin = args.length ();
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
150 int spumoni = 0;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
151
10282
c9780d8e228c fix invalid checks in amd functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10155
diff changeset
152 if (nargout > 2 || nargin < 1 || nargin > 3)
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
153 usage ("ccolamd: incorrect number of input and/or output arguments");
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
154 else
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
155 {
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
156 // Get knobs
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
157 OCTAVE_LOCAL_BUFFER (double, knobs, CCOLAMD_KNOBS);
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
158 CCOLAMD_NAME (_set_defaults) (knobs);
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
159
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
160 // Check for user-passed knobs
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
161 if (nargin > 1)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
162 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
163 NDArray User_knobs = args(1).array_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
164 int nel_User_knobs = User_knobs.length ();
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
165
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
166 if (nel_User_knobs > 0)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
167 knobs [CCOLAMD_LU] = (User_knobs (0) != 0);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
168 if (nel_User_knobs > 1)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
169 knobs [CCOLAMD_DENSE_ROW] = User_knobs (1);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
170 if (nel_User_knobs > 2)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
171 knobs [CCOLAMD_DENSE_COL] = User_knobs (2);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
172 if (nel_User_knobs > 3)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
173 knobs [CCOLAMD_AGGRESSIVE] = (User_knobs (3) != 0);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
174 if (nel_User_knobs > 4)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
175 spumoni = (User_knobs (4) != 0);
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
176
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
177 // print knob settings if spumoni is set
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
178 if (spumoni)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
179 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
180 octave_stdout << "\nccolamd version " << CCOLAMD_MAIN_VERSION << "."
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
181 << CCOLAMD_SUB_VERSION << ", " << CCOLAMD_DATE
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
182 << ":\nknobs(1): " << User_knobs (0) << ", order for ";
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
183 if ( knobs [CCOLAMD_LU] != 0)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
184 octave_stdout << "lu(A)\n";
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
185 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
186 octave_stdout << "chol(A'*A)\n";
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
187
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
188 if (knobs [CCOLAMD_DENSE_ROW] >= 0)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
189 octave_stdout << "knobs(2): " << User_knobs (1)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
190 << ", rows with > max(16,"
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
191 << knobs [CCOLAMD_DENSE_ROW] << "*sqrt(size(A,2)))"
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
192 << " entries removed\n";
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
193 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
194 octave_stdout << "knobs(2): " << User_knobs (1)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
195 << ", no dense rows removed\n";
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
196
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
197 if (knobs [CCOLAMD_DENSE_COL] >= 0)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
198 octave_stdout << "knobs(3): " << User_knobs (2)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
199 << ", cols with > max(16,"
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
200 << knobs [CCOLAMD_DENSE_COL] << "*sqrt(size(A)))"
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
201 << " entries removed\n";
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
202 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
203 octave_stdout << "knobs(3): " << User_knobs (2)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
204 << ", no dense columns removed\n";
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
205
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
206 if (knobs [CCOLAMD_AGGRESSIVE] != 0)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
207 octave_stdout << "knobs(4): " << User_knobs(3)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
208 << ", aggressive absorption: yes";
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
209 else
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
210 octave_stdout << "knobs(4): " << User_knobs(3)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
211 << ", aggressive absorption: no";
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
212
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
213 octave_stdout << "knobs(5): " << User_knobs (4)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
214 << ", statistics and knobs printed\n";
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
215 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
216 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
217
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
218 octave_idx_type n_row, n_col, nnz;
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
219 octave_idx_type *ridx, *cidx;
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
220 SparseComplexMatrix scm;
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
221 SparseMatrix sm;
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
222
5631
7171d19706df [project @ 2006-02-22 20:15:06 by dbateman]
dbateman
parents: 5604
diff changeset
223 if (args(0).is_sparse_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
224 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
225 if (args(0).is_complex_type ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
226 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
227 scm = args(0). sparse_complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
228 n_row = scm.rows ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
229 n_col = scm.cols ();
10527
b4d2080b6df7 Replace nzmax by nnz as needed
David Bateman <dbateman@free.fr>
parents: 10282
diff changeset
230 nnz = scm.nnz ();
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
231 ridx = scm.xridx ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
232 cidx = scm.xcidx ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
233 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
234 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
235 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
236 sm = args(0).sparse_matrix_value ();
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
237
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
238 n_row = sm.rows ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
239 n_col = sm.cols ();
10527
b4d2080b6df7 Replace nzmax by nnz as needed
David Bateman <dbateman@free.fr>
parents: 10282
diff changeset
240 nnz = sm.nnz ();
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
241 ridx = sm.xridx ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
242 cidx = sm.xcidx ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
243 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
244 }
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
245 else
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
246 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
247 if (args(0).is_complex_type ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
248 sm = SparseMatrix (real (args(0).complex_matrix_value ()));
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
249 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
250 sm = SparseMatrix (args(0).matrix_value ());
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
251
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
252 n_row = sm.rows ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
253 n_col = sm.cols ();
10527
b4d2080b6df7 Replace nzmax by nnz as needed
David Bateman <dbateman@free.fr>
parents: 10282
diff changeset
254 nnz = sm.nnz ();
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
255 ridx = sm.xridx ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
256 cidx = sm.xcidx ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
257 }
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
258
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
259 // Allocate workspace for ccolamd
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
260 OCTAVE_LOCAL_BUFFER (octave_idx_type, p, n_col+1);
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
261 for (octave_idx_type i = 0; i < n_col+1; i++)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
262 p[i] = cidx [i];
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
263
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
264 octave_idx_type Alen = CCOLAMD_NAME (_recommended) (nnz, n_row, n_col);
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
265 OCTAVE_LOCAL_BUFFER (octave_idx_type, A, Alen);
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
266 for (octave_idx_type i = 0; i < nnz; i++)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
267 A[i] = ridx [i];
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
268
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
269 OCTAVE_LOCAL_BUFFER (octave_idx_type, stats, CCOLAMD_STATS);
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
270
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
271 if (nargin > 2)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
272 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
273 NDArray in_cmember = args(2).array_value();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
274 octave_idx_type cslen = in_cmember.length();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
275 OCTAVE_LOCAL_BUFFER (octave_idx_type, cmember, cslen);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
276 for (octave_idx_type i = 0; i < cslen; i++)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
277 // convert cmember from 1-based to 0-based
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
278 cmember[i] = static_cast<octave_idx_type>(in_cmember(i) - 1);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
279
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
280 if (cslen != n_col)
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
281 error ("ccolamd: CMEMBER must be of length equal to #cols of A");
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
282 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
283 // Order the columns (destroys A)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
284 if (! CCOLAMD_NAME () (n_row, n_col, Alen, A, p, knobs, stats, cmember))
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
285 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
286 CCOLAMD_NAME (_report) (stats) ;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
287 error ("ccolamd: internal error!");
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
288 return retval;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
289 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
290 }
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
291 else
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
292 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
293 // Order the columns (destroys A)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
294 if (! CCOLAMD_NAME () (n_row, n_col, Alen, A, p, knobs, stats, 0))
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
295 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
296 CCOLAMD_NAME (_report) (stats) ;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
297 error ("ccolamd: internal error!");
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
298 return retval;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
299 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
300 }
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
301
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
302 // return the permutation vector
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
303 NDArray out_perm (dim_vector (1, n_col));
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
304 for (octave_idx_type i = 0; i < n_col; i++)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
305 out_perm(i) = p [i] + 1;
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
306
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
307 retval (0) = out_perm;
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
308
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
309 // print stats if spumoni > 0
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
310 if (spumoni > 0)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
311 CCOLAMD_NAME (_report) (stats) ;
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
312
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
313 // Return the stats vector
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
314 if (nargout == 2)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
315 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
316 NDArray out_stats (dim_vector (1, CCOLAMD_STATS));
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
317 for (octave_idx_type i = 0 ; i < CCOLAMD_STATS ; i++)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
318 out_stats (i) = stats [i] ;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
319 retval(1) = out_stats;
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
320
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
321 // fix stats (5) and (6), for 1-based information on
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
322 // jumbled matrix. note that this correction doesn't
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
323 // occur if symamd returns FALSE
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
324 out_stats (CCOLAMD_INFO1) ++ ;
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
325 out_stats (CCOLAMD_INFO2) ++ ;
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
326 }
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
327 }
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
328
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
329 #else
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
330
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
331 error ("ccolamd: not available in this version of Octave");
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
332
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
333 #endif
5771
9c7be8e14b5b [project @ 2006-04-18 19:17:33 by jwe]
jwe
parents: 5760
diff changeset
334
9c7be8e14b5b [project @ 2006-04-18 19:17:33 by jwe]
jwe
parents: 5760
diff changeset
335 return retval;
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
336 }
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
337
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
338 DEFUN_DLD (csymamd, args, nargout,
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
339 "-*- texinfo -*-\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
340 @deftypefn {Loadable Function} {@var{p} =} csymamd (@var{S})\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
341 @deftypefnx {Loadable Function} {@var{p} =} csymamd (@var{S}, @var{knobs})\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
342 @deftypefnx {Loadable Function} {@var{p} =} csymamd (@var{S}, @var{knobs}, @var{cmember})\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
343 @deftypefnx {Loadable Function} {[@var{p}, @var{stats}] =} csymamd (@dots{})\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
344 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
345 For a symmetric positive definite matrix @var{S}, returns the permutation\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
346 vector @var{p} such that @code{@var{S}(@var{p},@var{p})} tends to have a\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
347 sparser Cholesky@tie{}factor than @var{S}. Sometimes @code{csymamd} works\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
348 well for symmetric indefinite matrices too. The matrix @var{S} is assumed\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
349 to be symmetric; only the strictly lower triangular part is referenced.\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
350 @var{S} must be square. The ordering is followed by an elimination tree\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
351 post-ordering.\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
352 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
353 @var{knobs} is an optional 1-element to 3-element input vector, with a\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
354 default value of @code{[10 1 0]} if present or empty. Entries not\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
355 present are set to their defaults.\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
356 \n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
357 @table @code\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
358 @item @var{knobs}(1)\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
359 If @var{S} is n-by-n, then rows and columns with more than\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
360 @code{max(16,@var{knobs}(1)*sqrt(n))} entries are ignored, and ordered\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
361 last in the output permutation (subject to the cmember constraints).\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
362 \n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
363 @item @var{knobs}(2)\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
364 If nonzero, aggressive absorption is performed.\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
365 \n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
366 @item @var{knobs}(3)\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
367 If nonzero, statistics and knobs are printed.\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
368 \n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
369 @end table\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
370 \n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
371 @var{cmember} is an optional vector of length n. It defines the constraints\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
372 on the ordering. If @code{@var{cmember}(j) = @var{S}}, then row/column j is\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
373 in constraint set @var{c} (@var{c} must be in the range 1 to n). In the\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
374 output permutation @var{p}, rows/columns in set 1 appear first, followed\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
375 by all rows/columns in set 2, and so on. @code{@var{cmember} = ones(1,n)}\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
376 if not present or empty. @code{csymamd(@var{S},[],1:n)} returns @code{1:n}.\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
377 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
378 @code{@var{p} = csymamd(@var{S})} is about the same as @code{@var{p} =\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
379 symamd(@var{S})}. @var{knobs} and its default values differ.\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
380 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
381 @code{@var{stats}(4:7)} provide information if CCOLAMD was able to\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
382 continue. The matrix is OK if @code{@var{stats}(4)} is zero, or 1 if\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
383 invalid. @code{@var{stats}(5)} is the rightmost column index that is\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
384 unsorted or contains duplicate entries, or zero if no such column exists.\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
385 @code{@var{stats}(6)} is the last seen duplicate or out-of-order row\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
386 index in the column index given by @code{@var{stats}(5)}, or zero if no\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
387 such row index exists. @code{@var{stats}(7)} is the number of duplicate\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
388 or out-of-order row indices. @code{@var{stats}(8:20)} is always zero in\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
389 the current version of @sc{ccolamd} (reserved for future use).\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
390 \n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
391 The authors of the code itself are S. Larimore, T. Davis (Uni of Florida)\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
392 and S. Rajamanickam in collaboration with J. Bilbert and E. Ng. Supported\n\
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
393 by the National Science Foundation (DMS-9504974, DMS-9803599, CCR-0203270),\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
394 and a grant from Sandia National Lab. See\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
395 @url{http://www.cise.ufl.edu/research/sparse} for ccolamd, csymamd, amd,\n\
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
396 colamd, symamd, and other related orderings.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5631
diff changeset
397 @seealso{symamd, ccolamd}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5631
diff changeset
398 @end deftypefn")
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
399 {
5771
9c7be8e14b5b [project @ 2006-04-18 19:17:33 by jwe]
jwe
parents: 5760
diff changeset
400 octave_value_list retval;
9c7be8e14b5b [project @ 2006-04-18 19:17:33 by jwe]
jwe
parents: 5760
diff changeset
401
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
402 #if HAVE_CCOLAMD
5771
9c7be8e14b5b [project @ 2006-04-18 19:17:33 by jwe]
jwe
parents: 5760
diff changeset
403
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
404 int nargin = args.length ();
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
405 int spumoni = 0;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
406
10282
c9780d8e228c fix invalid checks in amd functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10155
diff changeset
407 if (nargout > 2 || nargin < 1 || nargin > 3)
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
408 usage ("ccolamd: incorrect number of input and/or output arguments");
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
409 else
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
410 {
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
411 // Get knobs
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
412 OCTAVE_LOCAL_BUFFER (double, knobs, CCOLAMD_KNOBS);
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
413 CCOLAMD_NAME (_set_defaults) (knobs);
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
414
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
415 // Check for user-passed knobs
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
416 if (nargin > 1)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
417 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
418 NDArray User_knobs = args(1).array_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
419 int nel_User_knobs = User_knobs.length ();
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
420
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
421 if (nel_User_knobs > 0)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
422 knobs [CCOLAMD_DENSE_ROW] = User_knobs (0);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
423 if (nel_User_knobs > 0)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
424 knobs [CCOLAMD_AGGRESSIVE] = User_knobs (1);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
425 if (nel_User_knobs > 1)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
426 spumoni = static_cast<int> (User_knobs (2));
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
427
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
428 // print knob settings if spumoni is set
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
429 if (spumoni)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
430 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
431 octave_stdout << "\ncsymamd version " << CCOLAMD_MAIN_VERSION << "."
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
432 << CCOLAMD_SUB_VERSION << ", " << CCOLAMD_DATE << "\n";
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
433
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
434 if (knobs [CCOLAMD_DENSE_ROW] >= 0)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
435 octave_stdout << "knobs(1): " << User_knobs (0)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
436 << ", rows/cols with > max(16,"
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
437 << knobs [CCOLAMD_DENSE_ROW] << "*sqrt(size(A,2)))"
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
438 << " entries removed\n";
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
439 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
440 octave_stdout << "knobs(1): " << User_knobs (0)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
441 << ", no dense rows/cols removed\n";
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
442
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
443 if (knobs [CCOLAMD_AGGRESSIVE] != 0)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
444 octave_stdout << "knobs(2): " << User_knobs(1)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
445 << ", aggressive absorption: yes";
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
446 else
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
447 octave_stdout << "knobs(2): " << User_knobs(1)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
448 << ", aggressive absorption: no";
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
449
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
450
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
451 octave_stdout << "knobs(3): " << User_knobs (2)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
452 << ", statistics and knobs printed\n";
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
453 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
454 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
455
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
456 octave_idx_type n_row, n_col, nnz;
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
457 octave_idx_type *ridx, *cidx;
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
458 SparseMatrix sm;
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
459 SparseComplexMatrix scm;
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
460
5631
7171d19706df [project @ 2006-02-22 20:15:06 by dbateman]
dbateman
parents: 5604
diff changeset
461 if (args(0).is_sparse_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
462 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
463 if (args(0).is_complex_type ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
464 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
465 scm = args(0).sparse_complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
466 n_row = scm.rows ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
467 n_col = scm.cols ();
10527
b4d2080b6df7 Replace nzmax by nnz as needed
David Bateman <dbateman@free.fr>
parents: 10282
diff changeset
468 nnz = scm.nnz ();
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
469 ridx = scm.xridx ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
470 cidx = scm.xcidx ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
471 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
472 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
473 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
474 sm = args(0).sparse_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
475 n_row = sm.rows ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
476 n_col = sm.cols ();
10527
b4d2080b6df7 Replace nzmax by nnz as needed
David Bateman <dbateman@free.fr>
parents: 10282
diff changeset
477 nnz = sm.nnz ();
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
478 ridx = sm.xridx ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
479 cidx = sm.xcidx ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
480 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
481 }
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
482 else
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
483 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
484 if (args(0).is_complex_type ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
485 sm = SparseMatrix (real (args(0).complex_matrix_value ()));
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
486 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
487 sm = SparseMatrix (args(0).matrix_value ());
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
488
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
489 n_row = sm.rows ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
490 n_col = sm.cols ();
10527
b4d2080b6df7 Replace nzmax by nnz as needed
David Bateman <dbateman@free.fr>
parents: 10282
diff changeset
491 nnz = sm.nnz ();
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
492 ridx = sm.xridx ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
493 cidx = sm.xcidx ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
494 }
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
495
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
496 if (n_row != n_col)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
497 {
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
498 error ("csymamd: matrix S must be square");
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
499 return retval;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
500 }
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
501
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
502 // Allocate workspace for symamd
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
503 OCTAVE_LOCAL_BUFFER (octave_idx_type, perm, n_col+1);
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
504 OCTAVE_LOCAL_BUFFER (octave_idx_type, stats, CCOLAMD_STATS);
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
505
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
506 if (nargin > 2)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
507 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
508 NDArray in_cmember = args(2).array_value();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
509 octave_idx_type cslen = in_cmember.length();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
510 OCTAVE_LOCAL_BUFFER (octave_idx_type, cmember, cslen);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
511 for (octave_idx_type i = 0; i < cslen; i++)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
512 // convert cmember from 1-based to 0-based
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
513 cmember[i] = static_cast<octave_idx_type>(in_cmember(i) - 1);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
514
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
515 if (cslen != n_col)
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
516 error ("csymamd: CMEMBER must be of length equal to #cols of A");
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
517 else
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
518 if (!CSYMAMD_NAME () (n_col, ridx, cidx, perm, knobs, stats,
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
519 &calloc, &free, cmember, -1))
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
520 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
521 CSYMAMD_NAME (_report) (stats) ;
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
522 error ("csymamd: internal error!") ;
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
523 return retval;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
524 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
525 }
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
526 else
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
527 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
528 if (!CSYMAMD_NAME () (n_col, ridx, cidx, perm, knobs, stats,
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
529 &calloc, &free, 0, -1))
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
530 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
531 CSYMAMD_NAME (_report) (stats) ;
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
532 error ("csymamd: internal error!") ;
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
533 return retval;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
534 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
535 }
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
536
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
537 // return the permutation vector
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
538 NDArray out_perm (dim_vector (1, n_col));
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
539 for (octave_idx_type i = 0; i < n_col; i++)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
540 out_perm(i) = perm [i] + 1;
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
541
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
542 retval (0) = out_perm;
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
543
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
544 // Return the stats vector
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
545 if (nargout == 2)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
546 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
547 NDArray out_stats (dim_vector (1, CCOLAMD_STATS));
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
548 for (octave_idx_type i = 0 ; i < CCOLAMD_STATS ; i++)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
549 out_stats (i) = stats [i] ;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
550 retval(1) = out_stats;
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
551
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
552 // fix stats (5) and (6), for 1-based information on
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
553 // jumbled matrix. note that this correction doesn't
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
554 // occur if symamd returns FALSE
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
555 out_stats (CCOLAMD_INFO1) ++ ;
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
556 out_stats (CCOLAMD_INFO2) ++ ;
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
557 }
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
558
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
559 // print stats if spumoni > 0
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
560 if (spumoni > 0)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
561 CSYMAMD_NAME (_report) (stats) ;
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
562
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
563 // Return the stats vector
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
564 if (nargout == 2)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
565 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
566 NDArray out_stats (dim_vector (1, CCOLAMD_STATS));
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
567 for (octave_idx_type i = 0 ; i < CCOLAMD_STATS ; i++)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
568 out_stats (i) = stats [i] ;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
569 retval(1) = out_stats;
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
570
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
571 // fix stats (5) and (6), for 1-based information on
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
572 // jumbled matrix. note that this correction doesn't
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
573 // occur if symamd returns FALSE
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
574 out_stats (CCOLAMD_INFO1) ++ ;
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
575 out_stats (CCOLAMD_INFO2) ++ ;
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9064
diff changeset
576 }
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
577 }
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
578
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
579 #else
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
580
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
581 error ("csymamd: not available in this version of Octave");
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
582
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
583 #endif
5771
9c7be8e14b5b [project @ 2006-04-18 19:17:33 by jwe]
jwe
parents: 5760
diff changeset
584
9c7be8e14b5b [project @ 2006-04-18 19:17:33 by jwe]
jwe
parents: 5760
diff changeset
585 return retval;
5451
ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe]
jwe
parents:
diff changeset
586 }