public static ChartDataSource<Number> fromNumericCellRange(Sheet sheet, CellRangeAddress cellRangeAddress) {return new AbstractCellRangeDataSource<Number>(sheet, cellRangeAddress) {@Override

public static IChartDataSource<double> FromNumericCellRange(ISheet sheet, CellRangeAddress cellRangeAddress) {return new DoubleCellRangeDataSource(sheet, cellRangeAddress);}
