def _dataToString(self, data):
        """ Conversion function used to convert the (default)data to the display value.
        """
        if self.specialValueText is not None and data == self.minValue:
            return self.specialValueText
        else:
            return "{}{:.{}f}{}".format(self.prefix, data, self.decimals, self.suffix)
Conversion function used to convert the (default)data to the display value.