public function matrix()
    {
        if ($this->_matrix) {
            return $this->_matrix;
        }
        $this->_matrix = new Matrix($this->tasks());
        $this->_matrix->process();
        return $this->_matrix;
    }
public function matrix()
    {
        if ($this->_matrix) {
            return $this->_matrix;
        }
        $this->_matrix = new Matrix($this->tasks());
        $this->_matrix->process();
        return $this->_matrix;
    }
Returns the processed matrix result report.

@return object