<?
require_once('ga.php');
class Test {
var $p1;
var $p2;
function Test($p1=0,$p2=0) {
$this->p1 = $p1;
$this->p2 = $p2;
}
}
function debug($x) {
echo "<pre style='border: 1px solid black'>";
print_r($x);
echo '</pre>';
}
//This will be the mutation function. Just increments the property.
function inc($x) {
return $x+1;
}
//This will be the fitness function. Is just the sum of all properties.
function total($obj) {
return $obj->p1 + $obj->p2;
}
$t1 = new Test(1,4);
$t2 = new Test(3,2);
$ga = new GA();
$ga->population = array($t1,$t2);
$ga->fitness_function = 'total'; //Uses the 'total' function as fitness function
$ga->num_couples = 1; //1 couple per generation
$ga->death_rate = 0; //1 death per generation
$ga->generations = 10; //Executes 10 generations
$ga->crossover_functions = 'max'; //Uses the 'max' (built-in) function as crossover function
$ga->mutation_function = 'inc'; //Uses the 'inc' function as mutation function
$ga->mutation_rate = 1; //1% mutation rate
$ga->evolve(); //Run
debug($ga->population);
?>
|
Download
