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% STK_BOUNDINGBOX constructs the bounding box for a set of points
%
% CALL: B = stk_boundingbox (X)
%
% returns the bounding box of X, defined as:
%
% B = [min(X); max(X)].
%
% The result is an stk_hrect object.
%
% See also: stk_hrect
% Copyright Notice
%
% Copyright (C) 2015, 2017, 2018 CentraleSupelec
%
% Author: Julien Bect <julien.bect@centralesupelec.fr>
% Copying Permission Statement
%
% This file is part of
%
% STK: a Small (Matlab/Octave) Toolbox for Kriging
% (https://github.com/stk-kriging/stk/)
%
% 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 box = stk_boundingbox (x)
if ~ isnumeric (x)
stk_error (['The input argument should be a ' ...
'numeric array.'], 'TypeMismatch');
elseif ndims (x) ~= 2 %#ok<ISMAT> see CODING_GUDELINES
stk_error (['Arrays with more than two dimensions are ' ...
'not supported.'], 'IncorrectSize');
end
xmin = min (x, [], 1);
xmax = max (x, [], 1);
box = stk_hrect ([xmin; xmax]);
end % function
%!shared x, y, cn
%! cn = {'a', 'b', 'c'};
%! x = [0 3 2; 1 4 1; 7 0 2];
%!error y = stk_boundingbox ();
%!test y = stk_boundingbox (x);
%!assert (isequal (y.data, [0 0 1; 7 4 2]));
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