annotate scripts/linear-algebra/commutation_matrix.m @ 19074:0850b5212619

doc: Add @nospell macro around proper names in documentation. * aspell-octave.en.pws: Remove proper names from Octave's custom dictionary. * doc/interpreter/audio.txi, doc/interpreter/diagperm.txi, doc/interpreter/diffeq.txi, doc/interpreter/emacs.txi, doc/interpreter/func.txi, doc/interpreter/geometry.txi, doc/interpreter/intro.txi, doc/interpreter/linalg.txi, doc/interpreter/numbers.txi, doc/interpreter/preface.txi, doc/interpreter/quad.txi, doc/interpreter/sparse.txi, libinterp/corefcn/colloc.cc, libinterp/corefcn/ellipj.cc, libinterp/corefcn/gammainc.cc, libinterp/corefcn/hess.cc, libinterp/corefcn/quadcc.cc, libinterp/corefcn/rand.cc, libinterp/corefcn/sqrtm.cc, libinterp/dldfcn/ccolamd.cc, libinterp/dldfcn/colamd.cc, libinterp/dldfcn/dmperm.cc, libinterp/dldfcn/symrcm.cc, scripts/general/quadgk.m, scripts/general/quadl.m, scripts/linear-algebra/commutation_matrix.m, scripts/linear-algebra/condest.m, scripts/linear-algebra/duplication_matrix.m, scripts/linear-algebra/expm.m, scripts/linear-algebra/housh.m, scripts/linear-algebra/krylov.m, scripts/linear-algebra/onenormest.m, scripts/linear-algebra/qzhess.m, scripts/optimization/fminsearch.m, scripts/optimization/glpk.m, scripts/signal/arch_fit.m, scripts/signal/bartlett.m, scripts/signal/blackman.m, scripts/signal/diffpara.m, scripts/signal/durbinlevinson.m, scripts/signal/hamming.m, scripts/signal/hanning.m, scripts/sparse/eigs.m, scripts/sparse/pcg.m, scripts/sparse/pcr.m, scripts/specfun/ellipke.m, scripts/special-matrix/gallery.m, scripts/special-matrix/invhilb.m, scripts/statistics/base/quantile.m, scripts/statistics/tests/kruskal_wallis_test.m, scripts/statistics/tests/manova.m, scripts/statistics/tests/mcnemar_test.m: Add @nospell macro around proper names in documentation.
author Rik <rik@octave.org>
date Thu, 21 Aug 2014 15:57:18 -0700
parents d63878346099
children 4197fc428c7d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
17744
d63878346099 maint: Update copyright notices for release.
John W. Eaton <jwe@octave.org>
parents: 14363
diff changeset
1 ## Copyright (C) 1995-2013 Kurt Hornik
3426
f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe]
jwe
parents: 3321
diff changeset
2 ##
3922
38c61cbf086c [project @ 2002-05-01 06:48:35 by jwe]
jwe
parents: 3499
diff changeset
3 ## This file is part of Octave.
38c61cbf086c [project @ 2002-05-01 06:48:35 by jwe]
jwe
parents: 3499
diff changeset
4 ##
38c61cbf086c [project @ 2002-05-01 06:48:35 by jwe]
jwe
parents: 3499
diff changeset
5 ## Octave is free software; you can redistribute it and/or modify it
38c61cbf086c [project @ 2002-05-01 06:48:35 by jwe]
jwe
parents: 3499
diff changeset
6 ## under the terms of the GNU General Public License as published by
7016
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 6046
diff changeset
7 ## the Free Software Foundation; either version 3 of the License, or (at
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 6046
diff changeset
8 ## your option) any later version.
3426
f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe]
jwe
parents: 3321
diff changeset
9 ##
3922
38c61cbf086c [project @ 2002-05-01 06:48:35 by jwe]
jwe
parents: 3499
diff changeset
10 ## Octave is distributed in the hope that it will be useful, but
2540
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3426
f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe]
jwe
parents: 3321
diff changeset
13 ## General Public License for more details.
f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe]
jwe
parents: 3321
diff changeset
14 ##
2540
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
15 ## 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: 6046
diff changeset
16 ## along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 6046
diff changeset
17 ## <http://www.gnu.org/licenses/>.
2540
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
18
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
19 ## -*- texinfo -*-
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
20 ## @deftypefn {Function File} {} commutation_matrix (@var{m}, @var{n})
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
21 ## Return the commutation matrix
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
22 ## @tex
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
23 ## $K_{m,n}$
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
24 ## @end tex
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 7017
diff changeset
25 ## @ifnottex
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
26 ## K(m,n)
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 7017
diff changeset
27 ## @end ifnottex
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
28 ## which is the unique
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
29 ## @tex
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
30 ## $m n \times m n$
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
31 ## @end tex
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 7017
diff changeset
32 ## @ifnottex
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
33 ## @var{m}*@var{n} by @var{m}*@var{n}
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 7017
diff changeset
34 ## @end ifnottex
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
35 ## matrix such that
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
36 ## @tex
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
37 ## $K_{m,n} \cdot {\rm vec} (A) = {\rm vec} (A^T)$
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
38 ## @end tex
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 7017
diff changeset
39 ## @ifnottex
3499
3e3e14ad5149 [project @ 2000-01-31 05:18:07 by jwe]
jwe
parents: 3456
diff changeset
40 ## @math{K(m,n) * vec(A) = vec(A')}
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 7017
diff changeset
41 ## @end ifnottex
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
42 ## for all
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
43 ## @tex
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
44 ## $m\times n$
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
45 ## @end tex
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 7017
diff changeset
46 ## @ifnottex
3499
3e3e14ad5149 [project @ 2000-01-31 05:18:07 by jwe]
jwe
parents: 3456
diff changeset
47 ## @math{m} by @math{n}
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 7017
diff changeset
48 ## @end ifnottex
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
49 ## matrices
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
50 ## @tex
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
51 ## $A$.
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
52 ## @end tex
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 7017
diff changeset
53 ## @ifnottex
3499
3e3e14ad5149 [project @ 2000-01-31 05:18:07 by jwe]
jwe
parents: 3456
diff changeset
54 ## @math{A}.
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 7017
diff changeset
55 ## @end ifnottex
3426
f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe]
jwe
parents: 3321
diff changeset
56 ##
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
57 ## If only one argument @var{m} is given,
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
58 ## @tex
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
59 ## $K_{m,m}$
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
60 ## @end tex
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 7017
diff changeset
61 ## @ifnottex
3499
3e3e14ad5149 [project @ 2000-01-31 05:18:07 by jwe]
jwe
parents: 3456
diff changeset
62 ## @math{K(m,m)}
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 7017
diff changeset
63 ## @end ifnottex
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
64 ## is returned.
3426
f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe]
jwe
parents: 3321
diff changeset
65 ##
19074
0850b5212619 doc: Add @nospell macro around proper names in documentation.
Rik <rik@octave.org>
parents: 17744
diff changeset
66 ## See @nospell{Magnus and Neudecker} (1988), @cite{Matrix Differential
0850b5212619 doc: Add @nospell macro around proper names in documentation.
Rik <rik@octave.org>
parents: 17744
diff changeset
67 ## Calculus with Applications in Statistics and Econometrics.}
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 2540
diff changeset
68 ## @end deftypefn
2540
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
69
5428
2a16423e4aa0 [project @ 2005-08-23 18:38:27 by jwe]
jwe
parents: 5307
diff changeset
70 ## Author: KH <Kurt.Hornik@wu-wien.ac.at>
2540
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
71 ## Created: 8 May 1995
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
72 ## Adapted-By: jwe
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
73
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
74 function k = commutation_matrix (m, n)
3426
f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe]
jwe
parents: 3321
diff changeset
75
2540
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
76 if (nargin < 1 || nargin > 2)
6046
34f96dd5441b [project @ 2006-10-10 16:10:25 by jwe]
jwe
parents: 5428
diff changeset
77 print_usage ();
2540
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
78 else
13279
984359717d71 Use common code idiom for checking whether a double value is an integer.
Rik <octave@nomad.inbox5.com>
parents: 12809
diff changeset
79 if (! (isscalar (m) && m == fix (m) && m > 0))
11472
1740012184f9 Use uppercase for variable names in error() strings to match Info documentation. Only m-files done.
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
80 error ("commutation_matrix: M must be a positive integer");
2540
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
81 endif
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
82 if (nargin == 1)
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
83 n = m;
13279
984359717d71 Use common code idiom for checking whether a double value is an integer.
Rik <octave@nomad.inbox5.com>
parents: 12809
diff changeset
84 elseif (! (isscalar (n) && n == fix (n) && n > 0))
11472
1740012184f9 Use uppercase for variable names in error() strings to match Info documentation. Only m-files done.
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
85 error ("commutation_matrix: N must be a positive integer");
2540
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
86 endif
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
87 endif
3426
f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe]
jwe
parents: 3321
diff changeset
88
2540
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
89 ## It is clearly possible to make this a LOT faster!
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
90 k = zeros (m * n, m * n);
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
91 for i = 1 : m
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
92 for j = 1 : n
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
93 k ((i - 1) * n + j, (j - 1) * m + i) = 1;
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
94 endfor
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
95 endfor
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
96
c3d634d49ce4 [project @ 1996-11-20 00:20:12 by jwe]
jwe
parents:
diff changeset
97 endfunction
12809
8dd680993088 codesprint: Wrote 6 tests for commutation_matrix.m
Sean Young <seannz@gmail.com>
parents: 11523
diff changeset
98
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
99
12809
8dd680993088 codesprint: Wrote 6 tests for commutation_matrix.m
Sean Young <seannz@gmail.com>
parents: 11523
diff changeset
100 %!test
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
101 %! c = commutation_matrix (1,1);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
102 %! assert (c,1);
12809
8dd680993088 codesprint: Wrote 6 tests for commutation_matrix.m
Sean Young <seannz@gmail.com>
parents: 11523
diff changeset
103
8dd680993088 codesprint: Wrote 6 tests for commutation_matrix.m
Sean Young <seannz@gmail.com>
parents: 11523
diff changeset
104 %!test
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
105 %! A = rand (3,5);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
106 %! vc = vec (A);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
107 %! vr = vec (A');
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
108 %! c = commutation_matrix (3,5);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
109 %! assert (c*vc, vr);
12809
8dd680993088 codesprint: Wrote 6 tests for commutation_matrix.m
Sean Young <seannz@gmail.com>
parents: 11523
diff changeset
110
8dd680993088 codesprint: Wrote 6 tests for commutation_matrix.m
Sean Young <seannz@gmail.com>
parents: 11523
diff changeset
111 %!test
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
112 %! A = rand (4,6);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
113 %! vc = vec (A);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
114 %! vr = vec (A');
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
115 %! c = commutation_matrix (4,6);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
116 %! assert (c*vc, vr);
12809
8dd680993088 codesprint: Wrote 6 tests for commutation_matrix.m
Sean Young <seannz@gmail.com>
parents: 11523
diff changeset
117
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
118 %!error <M must be a positive integer> commutation_matrix (0,0)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
119 %!error <N must be a positive integer> commutation_matrix (1,0)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
120 %!error <M must be a positive integer> commutation_matrix (0,1)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
121