floatexample.m

遗传算法程序 主要程序 ga.m 遗传算法核心程序 BinaryExample.m 二进制编码应用程序 FloatExample.m 浮点编码的应用程序 相关算子及函数 in

echo on
% This script shows how to use the ga using a float representation. 
global bounds

% Setting the seed to the same for binary
rand('seed',156789)

% Crossover Operators
xFns = 'arithXover';
xOpts = [4 40];

% Mutation Operators
mFns = 'nonUnifMutation';
mOpts = [2 40 3];

% Termination Operators
termFns = 'maxGenTerm';
termOps = [40]; % 40 Generations

% Selection Function
selectFn = 'normGeomSelect';
selectOps = [0.08];

% Evaluation Function
evalFn = 'exampleFn';
evalOps = [];

type exampleFn

% Bounds on the variables
bounds = [0 10];

% GA Options [epsilon float/binar display]
gaOpts=[1e-6 1 1];

% Generate an intialize population of size 20
startPop = initializega(20,bounds,'exampleFn',[1e-6 1])

% Lets run the GA
% Hit a return to continue
pause


[x endPop bestPop trace]=ga(bounds,evalFn,evalOps,startPop,gaOpts,...
    termFns,termOps,selectFn,selectOps,xFns,xOpts,mFns,mOpts);


% x is the best solution found
x
% Hit a return to continue
pause


% endPop is the ending population
endPop
% Hit a return to continue
pause


% bestPop is the best solution tracked over generations
bestPop
% Hit a return to continue
pause


% trace is a trace of the best value and average value of generations
trace
% Hit a return to continue
pause


% Plot the best over time
clf
plot(trace(:,1),trace(:,2));
% Hit a return to continue
pause


% Add the average to the graph
hold on
plot(trace(:,1),trace(:,3));
% Hit a return to continue
pause


% Lets increase the population size by running the defaults
% 

[x endPop bestPop trace]=ga(bounds,evalFn,evalOps,[],gaOpts,...
    termFns,termOps,selectFn,selectOps,xFns,xOpts,mFns,mOpts);

% x is the best solution found
x
% Hit a return to continue
pause


% endPop is the ending population
endPop
% Hit a return to continue
pause


% bestPop is the best solution tracked over generations
bestPop
% Hit a return to continue
pause


% trace is a trace of the best value and average value of generations
trace
% Hit a return to continue
pause


% Plot the best over time
clf
plot(trace(:,1),trace(:,2));
% Hit a return to continue
pause


% Add the average to the graph
hold on
plot(trace(:,1),trace(:,3));


echo off