public function getValueAt($Serie, $Index = 0)
    {
        if (isset($this->Data["Series"][$Serie]["Data"][$Index])) {
            return $this->Data["Series"][$Serie]["Data"][$Index];
        }
        return null;
    }
public function getValueAt($Serie, $Index = 0)
    {
        if (isset($this->Data["Series"][$Serie]["Data"][$Index])) {
            return $this->Data["Series"][$Serie]["Data"][$Index];
        }
        return null;
    }
public function getValueAt ( $ Serie , $ Index = 0 ) { if ( isset ( $ this -> Data [ "Series" ] [ $ Serie ] [ "Data" ] [ $ Index ] ) ) { return $ this -> Data [ "Series" ] [ $ Serie ] [ "Data" ] [ $ Index ] ; } return null ; }
Return a value from given serie & index
@param string $Serie
@param int $Index
@return mixed
Return a value from given serie & index