public function allocate(\Kumite\Test $test, array $options)
{
$event = $options['event'];
$ucbValues = array();
foreach ($test->variantKeys() as $v) {
$armCount = $this->getArmCount($v, $test);
// try all variants at least once
if ($armCount == 0) {
return $v;
}
$r = $this->getConversionRate($v, $test, $event);
$b = $this->getBonus($v, $test);
$ucbValues[$v] = $r + $b;
}
// return variant with the highest chance for success
return array_search(max($ucbValues), $ucbValues);
}
public function allocate(Test $test, array $options)
{
$keys = $test->variantKeys();
$index = array_rand($keys);
return $keys[$index];
}