ga_ex20.m

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% GA_ex20.m file
% Fin max of x*x function from 0 to 15. The
% max is 225 at x=15.

% PenChen Chou, 3-10-2002

clear all
ans=1;
who
fprintf('>>>Start this program [GA_ex20.m] to find MAX now. Please wait!\n');
pause(1)
global MUL_factor MIN_offset LOCUS
MUL_factor=1; MIN_offset=0;
%**********************************************************/
%       User can modify the following in blocks
%**********************************************************/
obj_fcn = 'GA_f20';	% Objective function
range = [0 
        15];	% Range of the input variables
IC=[]; elite=1; 
gen_no=100;popuSize=30;bit_n=30;
xover_rate=0.77;mutate_rate=0.05;
gen_no=10;popuSize=8;bit_n=12;
xover_rate=0.8;mutate_rate=0.2;

x=0:0.1:15; 
y=x.^2;
figure(2);plot(x,y);grid;
%************************************************************
% call GA written by Chang
tic
% function 
%[popu, popu_real, fcn_value, upper, average,...
%  lower, BEST_popu, popuSize, gen_no, para, best_pi]=...
%  GA_genetic(obj_fcn, range, IC, elite, gen_no, popuSize,...
%  bit_n, xover_rate, mutate_rate);
[popu, popu_real, fcn_value, upper, average,...
  lower, BEST_popu, popuSize, gen_no, para, best_pi]=...
  GA_genetic(obj_fcn, range, IC, elite, gen_no, popuSize,...
  bit_n, xover_rate, mutate_rate);t=toc/60;
fprintf('==>  Computation time is (%.2f) minutes.\n\n',t);