gusucode.com > 遗传算法 gaot工具箱matlab源码程序 > code_rar/gaot/coranaEval.m
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); d0=[1 1000 10 100 1 10 100 1000 1 10]; d=d0(1:numv); c=0.15; s=.2*ones(1,numv); t=0.05*ones(1,numv); 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));