function [val] = coranaEval(sol)% function [val] = coranaEval(sol)%% Determines the value of the Corana function at point sol.% This function is used in gademo2.% % val - the value of the Corana function at point sol% sol - the location to evaluate the Corana function% Binary and Real-Valued Simulation Evolution for Matlab % Copyright (C) 1996 C.R. Houck, J.A. Joines, M.G. Kay %% C.R. Houck, J.Joines, and M.Kay. A genetic algorithm for function% optimization: A Matlab implementation. ACM Transactions on Mathmatical% Software, Submitted 1996.%% This program 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 1, or (at your option)% any later version.%% This program 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. A copy of the GNU % General Public License can be obtained from the % Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.numv = size(sol,2);x=sol(1:numv-1);d0=[1 1000 10 100 1 10 100 1000 1 10];d=d0(1:numv-1);c=0.15;s=.2*ones(1,numv-1);t=0.05*ones(1,numv-1);bk = s.*(round(x./s));dev= (abs(bk-x)<t) & (bk~=0);z=c*((bk+sign(bk).*t).^2).*d;y=x.^2.*d;val = sum((dev.*z) + ((~dev).*y));