public function __construct($target, $size = 1024, $crossover = 0.8, $elitism = 0.1, $mutation = 0.03)
{
$this->crossover = $crossover;
$this->elitism = $elitism;
$this->mutation = $mutation;
$this->maxSize = $this->currentSize = $size;
$this->targetGene = $target;
while ($size--) {
$this->population[] = Chromosome::genRandom($this);
}
$this->sortPopulation();
}
/**
* @todo Implement testMutate().
*/
public function testMutate()
{
$i = 1000;
while ($i--) {
$c1 = Chromosome::genRandom($this->population);
$c2 = $c1->mutate();
$this->assertEquals(strlen($c1->gene), strlen($c2->gene));
$diff = levenshtein($c1->gene, $c2->gene);
$this->assertTrue($diff <= 1);
}
}
