--- /dev/null
+function varargout = size(df, varargin)
+ %# function resu = size(df, varargin)
+ %# This is size operator for a dataframe object.
+
+ %% Copyright (C) 2009-2012 Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
+ %%
+ %% 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 2, 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,
+ %% write to the Free Software Foundation, 51 Franklin Street -
+ %% Fifth Floor, Boston, MA 02110-1301, USA.
+
+ %#
+ %# $Id: size.m 9585 2012-02-05 15:32:46Z cdemills $
+ %#
+
+ switch nargin
+ case 1
+ switch nargout
+ case {0, 1}
+ varargout{1} = df._cnt;
+ case {2}
+ varargout{1} = df._cnt(1);
+ if (1 == df._cnt(2) && length(df._cnt) > 2),
+ varargout{2} = df._cnt(3);
+ else
+ varargout{2} = df._cnt(2);
+ endif
+ case {3}
+ varargout{1:2} = df._cnt(1:2);
+ if 2==length(df._cnt),
+ varargout{3} = 1;
+ else
+ varargout{3} = df._cnt(3);
+ endif
+ otherwise
+ error(print_usage());
+ endswitch
+ case 2
+ switch nargout
+ case {0 1}
+ varargout{1} = df._cnt;
+ try
+ varargout{1} = varargout{1}(varargin{1});
+ catch
+ error(print_usage());
+ end_try_catch
+ otherwise
+ error(print_usage());
+ endswitch
+ case 3
+ switch nargout
+ case {0 1}
+ if (length(df._cnt) < 3),
+ varargout{1} = 1;
+ else
+ varargout{1} = df._cnt;
+ endif
+ try
+ varargout{1} = varargout{1}(varargin{1});
+ catch
+ error(print_usage());
+ end_try_catch
+ otherwise
+ error(print_usage());
+ endswitch
+ otherwise
+ error(print_usage());
+ endswitch
+
+endfunction
+
+function usage = print_usage()
+ usage = strcat('Invalid call to size. Correct usage is: ', ' ', ...
+ '-- Overloaded Function: size (A, N)');
+endfunction