Graph::Values PHP Method

    public function Values($values)
    {
        $this->values = array();
        $v = func_get_args();
        if (count($v) == 1) {
            $v = array_shift($v);
        }
        if (is_array($v)) {
            reset($v);
            $first_key = key($v);
            if (!is_null($first_key) && is_array($v[$first_key])) {
                foreach ($v as $data_set) {
                    $this->values[] = $data_set;
                }
                return;
            }
        }
        $this->values[] = $v;
    }