Mercurial > octave-nkf
diff test/diag-perm.tst @ 16030:1af8d21608b7
rename all test files in the test directory from test_X.m to X.tst
* Use - instead of _ for .tst file names. Fix all file lists in
module.mk and Makefile.am files.
* __run_test_suite__.m: Adapt to new naming convention.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Sat, 09 Feb 2013 21:35:55 -0500 |
parents | test/test_diag_perm.m@72c96de7a403 |
children | d63878346099 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/diag-perm.tst Sat Feb 09 21:35:55 2013 -0500 @@ -0,0 +1,265 @@ +## Copyright (C) 2009-2012 E. Jason Riedy +## +## This file is part of Octave. +## +## Octave is free software; you can redistribute it and/or modify it +## under the terms of the GNU General Public License as published by +## the Free Software Foundation; either version 3 of the License, or (at +## your option) any later version. +## +## Octave is distributed in the hope that it will be useful, but +## WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +## General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with Octave; see the file COPYING. If not, see +## <http://www.gnu.org/licenses/>. + +######################################## +## Permutation matrices + +## row permutation +%!test +%! n = 5; +%! A = rand (n); +%! perm = randperm (n); +%! Prow = eye (n) (perm, :); +%! assert (A(perm, :), Prow * A); +%! invperm(perm) = 1:n; +%! assert (Prow \ A, A(invperm, :)); +%! assert (Prow' * A, A(invperm, :)); + +## column permutation +%!test +%! n = 7; +%! A = rand (n); +%! perm = randperm (n); +%! Pcol = eye (n) (:, perm); +%! assert (A(:, perm), A * Pcol); +%! invperm(perm) = 1:n; +%! assert (A / Pcol, A(:, invperm)); +%! assert (A * Pcol.', A(:, invperm)); + +## fall back to a matrix in addition +%!test +%! n = 4; +%! P1 = eye (n) (:, randperm (n)); +%! A = zeros (n) + P1; +%! assert (sum (A), full (ones (1, n))); +%! assert (sum (A, 2), full (ones (n, 1))); + +## preserve dense matrix structure +%!test +%! n = 7; +%! Pc = eye (n) (:, randperm (n)); +%! Pr = eye (n) (randperm (n), :); +%! assert (typeinfo (rand (n) * Pc), "matrix"); +%! assert (typeinfo (Pr * rand (n)), "matrix"); + +## preserve sparse matrix structure +%!test +%! n = 7; +%! Pc = eye (n) (:, randperm (n)); +%! Ac = sprand (n-3, n, .5) + I () * sprand (n-3, n, .5); +%! Pr = eye (n) (randperm (n), :); +%! Ar = sprand (n, n+2, .5); +%! assert (typeinfo (Ac * Pc), "sparse complex matrix"); +%! assert (full (Ac * Pc), full (Ac) * Pc); +%! assert (full (Ac / Pc), full (Ac) / Pc); +%! assert (typeinfo (Pr * Ar), "sparse matrix"); +%! assert (full (Pr * Ar), Pr * full (Ar)); +%! assert (full (Pr \ Ar), Pr \ full (Ar)); + +## structure rules for 1x1 dense / scalar and 1x1 perm +%!test +%! n = 7; +%! P1 = eye (1) (:, [1]); +%! A1 = 1; +%! P = eye (n) (:, randperm (n)); +%! A = rand (n-3, n, .5); +%! assert (typeinfo (A * P1), "matrix"); +%! assert (full (A * P1), full (A) * P1); +%! assert (typeinfo (P1 * A), "matrix"); +%! assert (full (P1 * A), P1 * full (A)); +%! assert (typeinfo (A1 * P), "matrix"); +%! assert (full (A1 * P), full (A1) * P); +%! assert (typeinfo (P * A1), "matrix"); +%! assert (full (P * A1), P * full (A1)); + +## structure rules for 1x1 sparse and 1x1 perm +%!test +%! n = 7; +%! P1 = eye (1) (:, [1]); +%! A1 = sparse (1, 1, 2); +%! P = eye (n) (:, randperm (n)); +%! A = sprand (n-3, n, .5); +%! assert (typeinfo (A * P1), "sparse matrix"); +%! assert (full (A * P1), full (A) * P1); +%! assert (typeinfo (P1 * A), "sparse matrix"); +%! assert (full (P1 * A), P1 * full (A)); +%! assert (typeinfo (A1 * P), "sparse matrix"); +%! assert (full (A1 * P), full (A1) * P); +%! assert (typeinfo (P * A1), "sparse matrix"); +%! assert (full (P * A1), P * full (A1)); + +## permuting a matrix with exceptional values does not introduce new ones. +%!test +%! n = 5; +%! pc = randperm (n); +%! Pc = eye (n) (:, pc); +%! pr = randperm (n); +%! Pr = eye (n) (pr, :); +%! A = rand (n); +%! A(n, n-2) = NaN; +%! A(3, 1) = Inf; +%! assert (Pr * A * Pc, A(pr, pc)); + +## conversion to sparse form +%!test +%! n = 7; +%! P = eye (n) (:, randperm (n)); +%! sP = sparse (P); +%! assert (full (sP), full (P)); +%! assert (size (find (sP), 1), n); +%! [I, J, V] = find (sP); +%! assert (all (V == 1)); + +######################################## +## Diagonal matrices + +## square row scaling +%!test +%! m = 7; +%! n = 11; +%! A = rand (m, n); +%! scalefact = rand (m, 1); +%! Dr = diag (scalefact); +%! assert (Dr * A, repmat (scalefact, 1, n) .* A); +%! assert (Dr \ A, A ./ repmat (scalefact, 1, n)); +%! scalefact(m-1) = Inf; +%! Dr(m-1, m-1) = 0; +%! assert (Dr \ A, A ./ repmat (scalefact, 1, n)); + +## square column scaling +%!test +%! m = 13; +%! n = 11; +%! A = rand (m, n); +%! scalefact = rand (1, n); +%! Dc = diag (scalefact); +%! assert (A * Dc, repmat (scalefact, m, 1) .* A); +%! assert (A / Dc, A ./ repmat (scalefact, m, 1)); +%! scalefact(n-1) = Inf; +%! Dc(n-1, n-1) = 0; +%! assert (A / Dc, A ./ repmat (scalefact, m, 1)); + +## arithmetic +%!test +%! m = 9; +%! n = 7; +%! mn = min (m, n); +%! d1 = rand (mn, 1) + I () * rand (mn, 1); +%! D1 = diag (d1, m, n); +%! d2 = rand (mn, 1); +%! D2 = diag (d2, m, n); +%! D1D2 = D1 + D2; +%! assert (typeinfo (D1D2), "complex diagonal matrix"); +%! assert (diag (D1D2), d1 + d2); +%! D1D2 = D2.' * D1; +%! assert (typeinfo (D1D2), "complex diagonal matrix"); +%! assert (diag (D1D2), d1 .* d2); + +## slicing +%!test +%! m = 13; +%! n = 6; +%! mn = min (m, n); +%! d = rand (mn, 1); +%! D = diag (d, m, n); +%! Dslice = D (1:(m-3), 1:(n-2)); +%! assert (typeinfo (Dslice), "diagonal matrix"); + +## preserve dense matrix structure when scaling +%!assert (typeinfo (rand (8) * (3 * eye (8))), "matrix"); +%!assert (typeinfo ((3 * eye (8)) * rand (8)), "matrix"); + +## preserve sparse matrix structure when scaling +%!assert (typeinfo (sprand (8, 8, .5) * (3 * eye (8))), "sparse matrix"); +%!assert (typeinfo (sprand (8, 8, .5) * (3 * eye (8))'), "sparse matrix"); +%!assert (typeinfo (((3 + 2 * I ()) * eye (8)) * sprand (8, 8, .5)), "sparse complex matrix"); +%!assert (typeinfo (((3 + 2 * I ()) * eye (8))' * sprand (8, 8, .5)), "sparse complex matrix"); +%!assert (typeinfo (sprand (8, 8, .5) * ((3 + 2 * I ()) * eye (8)).'), "sparse complex matrix"); + +## scaling a matrix with exceptional values does not introduce new ones. +%!test +%! n = 6; +%! dr = rand (n, 1); +%! Dr = diag (dr); +%! dc = rand (1, n); +%! Dc = diag (dc); +%! A = rand (n); +%! A(n, n-2) = NaN; +%! A(4, 1) = Inf; +%! assert (Dr * A * Dc, A .* kron (dr, dc), eps); + +## sparse inverse row scaling with a zero factor +%!test +%! n = 8; +%! A = sprand (n, n, .5); +%! scalefact = rand (n, 1); +%! Dr = diag (scalefact); +%! scalefact(n-1) = Inf; +%! Dr(n-1, n-1) = 0; +%! assert (full (Dr \ A), full (A) ./ repmat (scalefact, 1, n)); + +## narrow sparse inverse row scaling +%!test +%! n = 8; +%! A = sprand (n, n, .5); +%! scalefact = rand (n-2, 1); +%! Dr = diag (scalefact, n, n-2); +%! assert (full (Dr \ A), Dr \ full(A)); + +## sparse inverse column scaling with a zero factor +%!test +%! n = 11; +%! A = sprand (n, n, .5); +%! scalefact = rand (1, n); +%! Dc = diag (scalefact); +%! scalefact(n-1) = Inf; +%! Dc(n-1, n-1) = 0; +%! assert (full (A / Dc), full(A) / Dc); + +## short sparse inverse column scaling +%!test +%! n = 7; +%! A = sprand (n, n, .5); +%! scalefact = rand (1, n-2) + I () * rand(1, n-2); +%! Dc = diag (scalefact, n-2, n); +%! assert (full (A / Dc), full(A) / Dc); + +## adding sparse and diagonal stays sparse +%!test +%! n = 9; +%! A = sprand (n, n, .5); +%! D = 2 * eye (n); +%! assert (typeinfo (A + D), "sparse matrix"); +%! assert (typeinfo (A - D), "sparse matrix"); +%! D = D * I () + D; +%! assert (typeinfo (A - D), "sparse complex matrix"); +%! A = A * I () + A; +%! assert (typeinfo (D - A), "sparse complex matrix"); + +## adding sparse and diagonal stays sparse +%!test +%! n = 9; +%! A = sprand (n, n, .5); +%! D = 2 * eye (n); +%! assert (full (A + D), full (A) + D); +%! assert (full (A - D), full (A) - D); +%! D = D * I () + D; +%! assert (full (D + A), D + full (A)); +%! A = A * I () + A; +%! A(6, 4) = nan (); +%! assert (full (D - A), D - full (A));