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maint: End m-files with 1 blank line.
Simplifies automated grammarchecking script.
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scripts/ui/private/message_dialog.m: End m-files with 1 blank line.
author | Rik <rik@octave.org> |
---|---|
date | Wed, 28 Aug 2013 08:33:02 -0700 |
parents | b81b9d079515 |
children | d63878346099 |
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## Copyright (C) 2000-2012 Paul Kienzle ## Copyright (C) 2008 Jaroslav Hajek ## ## 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/>. ## -*- texinfo -*- ## @deftypefn {Function File} {} repmat (@var{A}, @var{m}) ## @deftypefnx {Function File} {} repmat (@var{A}, @var{m}, @var{n}) ## @deftypefnx {Function File} {} repmat (@var{A}, [@var{m} @var{n}]) ## @deftypefnx {Function File} {} repmat (@var{A}, [@var{m} @var{n} @var{p} @dots{}]) ## Form a block matrix of size @var{m} by @var{n}, with a copy of matrix ## @var{A} as each element. If @var{n} is not specified, form an ## @var{m} by @var{m} block matrix. For copying along more than two ## dimensions, specify the number of times to copy across each dimension ## @var{m}, @var{n}, @var{p}, @dots{}, in a vector in the second argument. ## @seealso{repelems} ## @end deftypefn ## Author: Paul Kienzle <pkienzle@kienzle.powernet.co.uk> ## Created: July 2000 function x = repmat (A, m, n) if (nargin < 2 || nargin > 3) print_usage (); endif if (nargin == 3) if (! isempty (m) && isempty (n)) m = m(:).'; n = 1; elseif (isempty (m) && ! isempty (n)) m = n(:).'; n = 1; elseif (isempty (m) && isempty (n)) m = n = 1; else if (all (size (m) > 1)) m = m(:,1); if (numel (m) < 3) n = n(end); else n = []; endif endif if (all (size (n) > 1)) n = n(:,1); endif m = m(:).'; n = n(:).'; endif else if (isempty (m)) m = n = 1; elseif (isscalar (m)) n = m; elseif (ndims (m) > 2) error ("repmat: M has more than 2 dimensions") elseif (all (size (m) > 1)) m = m(:,1).'; n = []; else m = m(:).'; n = []; endif endif idx = [m, n]; if (all (idx < 0)) error ("repmat: invalid dimensions") else idx = max (idx, 0); endif if (numel (A) == 1) ## optimize the scalar fill case. if (any (idx == 0)) x = resize (A, idx); else x(1:prod (idx)) = A; x = reshape (x, idx); endif elseif (ndims (A) == 2 && length (idx) < 3) if (issparse (A)) x = kron (ones (idx), A); else ## indexing is now faster, so we use it rather than kron. m = rows (A); n = columns (A); p = idx(1); q = idx(2); x = reshape (A, m, 1, n, 1); x = x(:, ones (1, p), :, ones (1, q)); x = reshape (x, m*p, n*q); endif else aidx = size (A); ## ensure matching size idx(end+1:length (aidx)) = 1; aidx(end+1:length (idx)) = 1; ## create subscript array cidx = cell (2, length (aidx)); for i = 1:length (aidx) cidx{1,i} = ':'; cidx{2,i} = ones (1, idx (i)); endfor aaidx = aidx; ## add singleton dims aaidx(2,:) = 1; A = reshape (A, aaidx(:)); x = reshape (A (cidx{:}), idx .* aidx); endif endfunction # Tests for ML compatibility %!shared x %! x = [1 2 3]; %!assert (repmat (x, [3, 1]), repmat (x, 3, [])) %!assert (repmat (x, [3, 1]), repmat (x, [], 3)) %!assert (repmat (x, [1, 3]), repmat (x, [], [1, 3])) %!assert (repmat (x, [1, 3]), repmat (x, [1, 3], [])) %!assert (repmat (x, [1 3]), repmat (x, [1 3; 3 3])) %!assert (repmat (x, [1 1 2]), repmat (x, [1 1; 1 3; 2 1])) %!assert (repmat (x, [1 3; 1 3], [1; 3]), repmat (x, [1 1 3])) %!assert (repmat (x, [1 1], 4), repmat (x, [1 3; 1 3], [1; 4])) %!assert (repmat (x, [1 1], 4), repmat (x, [1 3; 1 3], [1 2; 3 4])) %!assert (repmat (x, [1 1], 4), repmat (x, [1 1 4])); %!assert (repmat (x, [1 1], 4), repmat (x, 1, [1 4])); # Test various methods of providing size parameters %!shared x %! x = [1 2;3 4]; %!assert (repmat (x, [1 1]), repmat (x, 1)) %!assert (repmat (x, [3 3]), repmat (x, 3)) %!assert (repmat (x, [1 1]), repmat (x, 1, 1)) %!assert (repmat (x, [1 3]), repmat (x, 1, 3)) %!assert (repmat (x, [3 1]), repmat (x, 3, 1)) %!assert (repmat (x, [3 3]), repmat (x, 3, 3)) # Tests for numel==1 case: %!shared x, r %! x = [ 65 ]; %! r = kron (ones (2,2), x); %!assert (r, repmat (x, [2 2])) %!assert (char (r), repmat (char (x), [2 2])) %!assert (int8 (r), repmat (int8 (x), [2 2])) # Tests for ndims==2 case: %!shared x, r %! x = [ 65 66 67 ]; %! r = kron (ones (2,2), x); %!assert (r, repmat (x, [2 2])) %!assert (char (r), repmat (char (x), [2 2])) %!assert (int8 (r), repmat (int8 (x), [2 2])) # Tests for dim>2 case: %!shared x, r %! x = [ 65 66 67 ]; %! r = kron (ones (2,2), x); %! r(:,:,2) = r(:,:,1); %!assert (r, repmat (x, [2 2 2])) %!assert (char (r), repmat (char (x), [2 2 2])) %!assert (int8 (r), repmat (int8 (x), [2 2 2])) # Test that sparsity is kept %!assert (sparse (4,4), repmat (sparse (2,2),[2 2])) %!assert (size (repmat (".", -1, 1)), [0, 1]) %!assert (size (repmat (".", 1, -1)), [1, 0]) %!assert (size (repmat (1, [1, 0])), [1, 0]) %!assert (size (repmat (1, [5, 0])), [5, 0]) %!assert (size (repmat (1, [0, 1])), [0, 1]) %!assert (size (repmat (1, [0, 5])), [0, 5]) %!shared x %! x = struct ("a", [], "b", []); %!assert (size (repmat (x, [1, 0])), [1, 0]) %!assert (size (repmat (x, [5, 0])), [5, 0]) %!assert (size (repmat (x, [0, 1])), [0, 1]) %!assert (size (repmat (x, [0, 5])), [0, 5]) %!assert (size (repmat ({1}, [1, 0])), [1, 0]) %!assert (size (repmat ({1}, [5, 0])), [5, 0]) %!assert (size (repmat ({1}, [0, 1])), [0, 1]) %!assert (size (repmat ({1}, [0, 5])), [0, 5]) %!error (size (repmat (".", -1, -1)))