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% MIN [overload base function]
% Copyright Notice
%
% Copyright (C) 2015, 2018 CentraleSupelec
% Copyright (C) 2013 SUPELEC
%
% Author: Julien Bect <julien.bect@centralesupelec.fr>
% Copying Permission Statement
%
% This file is part of
%
% STK: a Small (Matlab/Octave) Toolbox for Kriging
% (http://sourceforge.net/projects/kriging)
%
% STK 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.
%
% STK 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 STK. If not, see <http://www.gnu.org/licenses/>.
function varargout = min (x, y, dim)
varargout = cell (1, max (1, nargout));
if (nargin < 2) || (isempty (y)), % Act on rows or columns
if nargin < 3, dim = 1; end
[varargout{:}] = apply (x, dim, @min, []);
else % Apply 'min' elementwise
if nargin > 2,
errmsg = 'Too many input arguments (elementwise min assumed)';
stk_error (errmsg, 'TooManyInputArgs');
else
[varargout{:}] = bsxfun (@min, x, y);
end
end % if
end % function
%!test stk_test_dfbinaryop ('min', rand(7, 2), rand(7, 2));
%!test stk_test_dfbinaryop ('min', rand(7, 2), pi);
%!error stk_test_dfbinaryop ('min', rand(7, 2), rand(7, 3));
%!shared x1, df1
%! x1 = rand(9, 3);
%! df1 = stk_dataframe(x1, {'a', 'b', 'c'});
%!assert (isequal (min(df1), min(x1)))
%!assert (isequal (min(df1, [], 1), min(x1)))
%!assert (isequal (min(df1, [], 2), min(x1, [], 2)))
%!error (min(df1, df1, 2))
%!test
%! x = stk_dataframe ([5; 2; 4]);
%! [M, k] = min (x);
%! assert ((M == 2) && (k == 2));
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