Mercurial > hg > octave-nkf
annotate scripts/specfun/perms.m @ 14868:5d3a684236b0
maint: Use Octave coding conventions for cuddling parentheses in scripts directory
* lin2mu.m, loadaudio.m, wavread.m, accumarray.m, bicubic.m, celldisp.m,
colon.m, cplxpair.m, dblquad.m, divergence.m, genvarname.m, gradient.m,
int2str.m, interp1.m, interp1q.m, interp2.m, interpn.m, loadobj.m, nthargout.m,
__isequal__.m, __splinen__.m, quadgk.m, quadl.m, quadv.m, rat.m, rot90.m,
rotdim.m, saveobj.m, subsindex.m, triplequad.m, delaunay3.m, griddata.m,
inpolygon.m, tsearchn.m, voronoi.m, get_first_help_sentence.m, which.m,
gray2ind.m, pink.m, dlmwrite.m, strread.m, textread.m, textscan.m, housh.m,
ishermitian.m, issymmetric.m, krylov.m, logm.m, null.m, rref.m,
compare_versions.m, copyfile.m, dump_prefs.m, edit.m, fileparts.m,
getappdata.m, isappdata.m, movefile.m, orderfields.m, parseparams.m,
__xzip__.m, rmappdata.m, setappdata.m, swapbytes.m, unpack.m, ver.m, fminbnd.m,
fminunc.m, fsolve.m, glpk.m, lsqnonneg.m, qp.m, sqp.m, configure_make.m,
copy_files.m, describe.m, get_description.m, get_forge_pkg.m, install.m,
installed_packages.m, is_architecture_dependent.m, load_package_dirs.m,
print_package_description.m, rebuild.m, repackage.m, save_order.m, shell.m,
allchild.m, ancestor.m, area.m, axes.m, axis.m, clabel.m, close.m, colorbar.m,
comet.m, comet3.m, contour.m, cylinder.m, ezmesh.m, ezsurf.m, findobj.m,
fplot.m, hist.m, isocolors.m, isonormals.m, isosurface.m, isprop.m, legend.m,
mesh.m, meshz.m, pareto.m, pcolor.m, peaks.m, plot3.m, plotmatrix.m, plotyy.m,
polar.m, print.m, __add_datasource__.m, __add_default_menu__.m,
__axes_limits__.m, __bar__.m, __clabel__.m, __contour__.m, __errcomm__.m,
__errplot__.m, __ezplot__.m, __file_filter__.m, __fltk_print__.m,
__ghostscript__.m, __gnuplot_print__.m, __go_draw_axes__.m,
__go_draw_figure__.m, __interp_cube__.m, __marching_cube__.m, __patch__.m,
__pie__.m, __plt__.m, __print_parse_opts__.m, __quiver__.m, __scatter__.m,
__stem__.m, __tight_eps_bbox__.m, __uigetdir_fltk__.m, __uigetfile_fltk__.m,
__uiputfile_fltk__.m, quiver.m, quiver3.m, rectangle.m, refreshdata.m,
ribbon.m, scatter.m, semilogy.m, shading.m, slice.m, subplot.m, surface.m,
surfl.m, surfnorm.m, text.m, uigetfile.m, uiputfile.m, whitebg.m, deconv.m,
mkpp.m, pchip.m, polyaffine.m, polyder.m, polygcd.m, polyout.m, polyval.m,
ppint.m, ppjumps.m, ppval.m, residue.m, roots.m, spline.m, splinefit.m,
addpref.m, getpref.m, setpref.m, ismember.m, setxor.m, arch_fit.m, arch_rnd.m,
arch_test.m, autoreg_matrix.m, diffpara.m, fftconv.m, filter2.m, hanning.m,
hurst.m, periodogram.m, triangle_sw.m, sinc.m, spectral_xdf.m, spencer.m,
stft.m, synthesis.m, unwrap.m, yulewalker.m, bicgstab.m, gmres.m, pcg.m, pcr.m,
__sprand_impl__.m, speye.m, spfun.m, sprandn.m, spstats.m, svds.m,
treelayout.m, treeplot.m, bessel.m, factor.m, legendre.m, perms.m, primes.m,
magic.m, toeplitz.m, corr.m, cov.m, mean.m, median.m, mode.m, qqplot.m,
quantile.m, ranks.m, zscore.m, logistic_regression_likelihood.m,
bartlett_test.m, chisquare_test_homogeneity.m, chisquare_test_independence.m,
kolmogorov_smirnov_test.m, run_test.m, u_test.m, wilcoxon_test.m, z_test.m,
z_test_2.m, bin2dec.m, dec2base.m, mat2str.m, strcat.m, strchr.m, strjust.m,
strtok.m, substr.m, untabify.m, assert.m, demo.m, example.m, fail.m, speed.m,
test.m, now.m: Use Octave coding conventions for cuddling parentheses in
scripts directory.
author | Rik <octave@nomad.inbox5.com> |
---|---|
date | Tue, 17 Jul 2012 07:08:39 -0700 |
parents | f3d52523cde1 |
children | c2dbdeaa25df |
rev | line source |
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maint: update copyright notices for 2012
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1 ## Copyright (C) 2001-2012 Paul Kienzle |
9836 | 2 ## Copyright (C) 2009 VZLU Prague |
5827 | 3 ## |
4 ## This file is part of Octave. | |
5 ## | |
6 ## Octave is free software; you can redistribute it and/or modify it | |
7 ## under the terms of the GNU General Public License as published by | |
7016 | 8 ## the Free Software Foundation; either version 3 of the License, or (at |
9 ## your option) any later version. | |
5827 | 10 ## |
11 ## Octave is distributed in the hope that it will be useful, but | |
12 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 ## General Public License for more details. | |
15 ## | |
16 ## You should have received a copy of the GNU General Public License | |
7016 | 17 ## along with Octave; see the file COPYING. If not, see |
18 ## <http://www.gnu.org/licenses/>. | |
5827 | 19 |
20 ## -*- texinfo -*- | |
21 ## @deftypefn {Function File} {} perms (@var{v}) | |
22 ## | |
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23 ## Generate all permutations of @var{v}, one row per permutation. The |
5827 | 24 ## result has size @code{factorial (@var{n}) * @var{n}}, where @var{n} |
25 ## is the length of @var{v}. | |
26 ## | |
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27 ## As an example, @code{perms ([1, 2, 3])} returns the matrix |
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28 ## |
6754 | 29 ## @example |
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30 ## @group |
6754 | 31 ## 1 2 3 |
32 ## 2 1 3 | |
33 ## 1 3 2 | |
34 ## 2 3 1 | |
35 ## 3 1 2 | |
36 ## 3 2 1 | |
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37 ## @end group |
6754 | 38 ## @end example |
5827 | 39 ## @end deftypefn |
40 | |
41 function A = perms (v) | |
6391 | 42 if (nargin != 1) |
43 print_usage (); | |
44 endif | |
5827 | 45 v = v(:); |
46 n = length (v); | |
9836 | 47 |
48 if (n == 0) | |
49 A = []; | |
5827 | 50 else |
9836 | 51 A = v(1); |
52 for j = 2:n | |
53 B = A; | |
54 A = zeros (prod (2:j), n, class (v)); | |
55 k = size (B, 1); | |
56 idx = 1:k; | |
57 for i = j:-1:1 | |
58 A(idx,1:i-1) = B(:,1:i-1); | |
59 A(idx,i) = v(j); | |
60 A(idx,i+1:j) = B(:,i:j-1); | |
61 idx += k; | |
62 endfor | |
5827 | 63 endfor |
64 endif | |
65 endfunction | |
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John W. Eaton <jwe@octave.org>
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66 |
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John W. Eaton <jwe@octave.org>
parents:
11523
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67 |
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68 %!assert (perms ([1,2,3]), [1,2,3;2,1,3;1,3,2;2,3,1;3,1,2;3,2,1]) |
f3d52523cde1
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Rik <octave@nomad.inbox5.com>
parents:
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69 %!assert (perms (1:3), perms ([1,2,3])) |
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70 %!assert (perms (int8 ([1,2,3])), int8 ([1,2,3;2,1,3;1,3,2;2,3,1;3,1,2;3,2,1])) |
12815
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codesprint: new tests for specfun directory
John W. Eaton <jwe@octave.org>
parents:
11523
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changeset
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71 |
14363
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parents:
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72 %!error perms () |
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parents:
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73 %!error perms (1, 2) |
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Rik <octave@nomad.inbox5.com>
parents:
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74 |