www.pudn.com > SGAProToolboxVer.zip > fitness_function.m

function fitness=fitness_function(a,b) 
%Fitness_function Function is an example function Of Simple Genetic Algorithm Program (Version 1.0.0.1 ) 
%Support multi-dimesion parameters 
%By chen yi ,CQU .QQ:2376635  Email:cdey@10mail.net  (April,19th,2002) 
%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
%Attention :fitness_function(x) is a single value function 
%and it is a standard function of m-function-file 
% 
% this is only an example of fitness_function ,you can give your own 
% fitness_function as you wish. 
% 
% See Also DECODING ,CODING,SELECTION ,CROSSOVER,MUTATION,FITNESS, 
%          SGA 
%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
 
 
fitness=0.5-(sin(sqrt(a^2+b^2))^2-0.5)/((1+0.001*(a^2+b^2))^2); 
%end of fitness_function