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% COMPUTE_P_SCALING [STK internal]
% Copyright Notice
%
% Copyright (C) 2014 SUPELEC
%
% Authors: 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 s = compute_P_scaling (Kii, Pi)
t = sum (Pi .^ 2);
s = ones (1, size (Pi, 2));
s(t > 0) = sqrt ((max (sum (Kii .^ 2))) ./ t(t > 0));
end % function
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