Mercurial > octave-nkf
view scripts/general/cell2mat.m @ 8828:8463d1a2e544
Doc fixes.
* 2]$$. => 2].$$
* @var{extrapval} => @var{extrapval}.
* call helloworld.oct => called @file{helloworld.oct}
* @itemize => @table @code
* shows. => shows:
* save => @code{save}
* @ref{Breakpoints} => @pxref{Breakpoints}
* add @noindent following example
* which is computed => and compute it
* clarify wording
* remove comma
* good => well
* set => number
* by writing => with the command
* has the option of directly calling => can call
* [-like-] {+of the right size,+}
* solvers => routines
* handle => test for
* add introductory section
* add following
* {+the+} [0..bitmax] => [0,bitmax]
* of the => with
* number => value
* add usual
* Besides when doing comparisons, logical => Logical {+also+}
* array comparison => array, comparisons
* param => parameter
* works very similar => is similar
* strings, => strings
* most simple => simplest
* easier => more easily
* like => as
* called => called,
* clarify wording
* you should simply type => use
* clarify wording
* means => way
* equally => also
* [-way much-] {+way+}
* add with mean value parameter given by the first argument, @var{l}
* add Functions described as @dfn{mapping functions} apply the given
operation to each element when given a matrix argument.
* in this brief introduction => here
* It is worth noticing => Note
* add following
* means => ways
author | Brian Gough <bjg@network-theory.co.uk> |
---|---|
date | Fri, 20 Feb 2009 11:17:01 -0500 |
parents | 8655dc0906e6 |
children | eb63fbe60fab |
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## Copyright (C) 2005, 2006, 2007 Laurent Mazet ## ## 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} {@var{m} =} cell2mat (@var{c}) ## Convert the cell array @var{c} into a matrix by concatenating all ## elements of @var{c} into a hyperrectangle. Elements of @var{c} must ## be numeric, logical or char, and @code{cat} must be able to ## concatenate them together. ## @seealso{mat2cell, num2cell} ## @end deftypefn function m = cell2mat (c) if (nargin != 1) print_usage (); endif if (! iscell (c)) error ("cell2mat: c is not a cell array"); endif nb = numel (c); if (nb == 0) m = []; elseif (nb == 1) elt = c{1}; if (isnumeric (elt) || ischar (elt) || islogical (elt)) m = elt; elseif (iscell (elt)) m = cell2mat (elt); else error ("cell2mat: all elements of cell array must be numeric, logical or char"); endif elseif (ndims (c) == 2) nr = rows (c); nc = columns (c); if (nc > nr) c1 = cell (nr, 1); for i = 1 : nr c1{i} = [c{i : nr : end}]; endfor m = cat (1, c1 {:}); else c1 = cell (nc, 1); for i = 1 : nc c1{i} = cat (1, c{(i - 1) * nr + [1 : nr]}); endfor m = [c1{:}]; endif else ## n dimensions case for k = ndims (c):-1:2, sz = size (c); sz(end) = 1; c1 = cell (sz); for i = 1:(prod (sz)) c1{i} = cat (k, c{i:(prod (sz)):end}); endfor c = c1; endfor m = cat (1, c1{:}); endif endfunction ## Tests %!shared C, D, E, F %! C = {[1], [2 3 4]; [5; 9], [6 7 8; 10 11 12]}; %! D = C; D(:,:,2) = C; %! E = [1 2 3 4; 5 6 7 8; 9 10 11 12]; %! F = E; F(:,:,2) = E; %!assert (cell2mat (C), E); %!assert (cell2mat (D), F); ## Demos %!demo %! C = {[1], [2 3 4]; [5; 9], [6 7 8; 10 11 12]}; %! cell2mat (C)