     {
         super.init();
         
-        _label = label;
+        self.label = label;
         _yVals = yVals == nil ? [ChartDataEntry]() : yVals;
         
         // default color

    internal var _yMax = Float(0.0)
    internal var _yMin = Float(0.0)
    internal var _yValueSum = Float(0.0)
    internal var _label = "DataSet"
    public var visible = true;
    public var drawValuesEnabled = true;
    

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