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GeneticAlgorithm.m
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GeneticAlgorithm.m
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% Befor use this repository, you have to add the path at once.
p = path;
pathAssets = strcat(pwd,'/assets/');
path(path,pathAssets);
clc;
close all;
clear;
%% --- start measure
start_time = cputime;
allvars = whos;
memused1 = sum([allvars.bytes]);
%% --- Create cities and map
load('usborder.mat','x','y','xx','yy');
map.nStops = 100; % you can use any number, but the problem size scales as N^2
[map.distMap, map.lon, map.lat] = initCities(map.nStops);
%% --- params of Genetic Algorithm
conf = getConfig('GeneticAlgorithm', map.nStops);
agents = zeros(conf.population,map.nStops+1);
if conf.randset == 1
rng(3,'twister') % makes a plot with stops in Maine & Florida, and is reproducible
end
%% --- search
tour = 1:map.nStops;
cost = map.nStops + 1;
for i = 1:conf.population
agents(i,tour) = getRandomTour(map.nStops);
agents(i,cost) = getTotalDist(agents(i,tour),map.distMap);
end
doPlot = 1;
[bestTour, bestCost, agents, eachBetterCosts] = doGeneticAlgorithm(map,agents,conf,doPlot);
%% --- end measure
allvars = whos;
memused2 = sum([allvars.bytes]);
memcost = memused2 - memused1;
end_time = cputime;
exec_time = end_time - start_time;
fprintf('\ntime taken = %f\t', exec_time);
fprintf('\nmemeory cost = %f\t', memcost);
%% --- visualize
if doPlot == 1
% bestTour
figure('Name','Best Tour','NumberTitle','off')
plot(x,y,'Color','red'); % draw the outside border
hold on
plot(map.lon,map.lat,'*b')
drawTourPath(map.lon,map.lat,bestTour);
hold off
end
bestCost