DataTableSet dts1 = plot1.addNewDataTableSet("DataTableSet 2d");//use null to avoid the output of figure title for this dataset.
DataTable dt1 = dts1.addNewDataTable("x", 2);
DataTable dt2 = dts1.addNewDataTable("2x", 2);
DataTable dt3 = dts1.addNewDataTable("3x", 2);
DataTable dt4 = dts1.addNewDataTable("4x", 2);
DataTable dt5 = dts1.addNewDataTable("5x", 2);
DataTable dt6 = dts1.addNewDataTable("6x", 2);
DataTable dt7 = dts1.addNewDataTable("7x", 2);
DataTable dt8 = dts1.addNewDataTable("8x", 2);
DataTable dt9 = dts1.addNewDataTable("9x", 2);
DataTable dt10 = dts1.addNewDataTable("10x", 2);