public function getResult () : Result
    {
        // Cache
        if ( $this->_Result !== null ) :
            return $this->_Result;
        endif;

            //////

        // Comparison calculation
        $this->_Comparison = PairwiseStats::PairwiseComparison($this->_selfElection->getPairwise(false));

        // Ranking calculation
        $this->makeRanking();

        // Return
        return $this->_Result;
    }