     public var yValueSum: Float { return _yValueSum }
     public var yMin: Float { return _yMin }
     public var yMax: Float { return _yMax }
-    public var label: String { return _label }
     
     public override init()
     {

    
    public override var description: String
    {
        return String(format: "ChartDataSet, label: %@, %i entries", arguments: [_label, _yVals.count]);
    }
    
    public override var debugDescription: String

        copy._yMax = _yMax;
        copy._yMin = _yMin;
        copy._yValueSum = _yValueSum;
        copy.label = self.label;
        return copy;
    }
}
