public function setNewSettings($ratingA, $ratingB, $scoreA, $scoreB)
{
$this->_ratingA = $ratingA;
$this->_ratingB = $ratingB;
$this->_scoreA = $scoreA;
$this->_scoreB = $scoreB;
$expectedScores = $this->_getExpectedScores($this->_ratingA, $this->_ratingB);
$this->_expectedA = $expectedScores['a'];
$this->_expectedB = $expectedScores['b'];
$newRatings = $this->_getNewRatings($this->_ratingA, $this->_ratingB, $this->_expectedA, $this->_expectedB, $this->_scoreA, $this->_scoreB);
$this->_newRatingA = $newRatings['a'];
$this->_newRatingB = $newRatings['b'];
}