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% STK_OPTIM_TESTMIN_UNC [STK internal]
% Copyright Notice
%
% Copyright (C) 2015, 2016, 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 b = stk_optim_testmin_unc (algo)
if nargin == 1
try
% Starting point
x_init = 0.0;
[x_opt, obj_opt] = stk_minimize_unconstrained (algo, @objfun, x_init);
assert (abs (x_opt - 0.3) < 1e-2);
assert (abs (obj_opt - 0.0) < 1e-2);
b = true;
catch %#ok<CTCH>
b = false;
end % try_catch
elseif nargin == 0
stk_error ('Not enough input arguments.', 'NotEnoughInputArgs');
end % if
end % function
function [f, df] = objfun (x)
f = (x - 0.3) .^ 2;
df = 2 * (x - 0.3);
end % function
%!shared algo
%! algo = stk_options_get ('stk_param_estim', 'minimize_unc');
%!error b = stk_optim_testmin_unc ();
%!assert (stk_optim_testmin_unc (algo));
%!assert (~ stk_optim_testmin_unc ('dudule'));
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