Build 3.0.0.81 of xlsgen introduces another financial chart type : relative strength index.

Relative strength index (RSI) is used for decision making. When this indicator is below 30% or above 70%, it is a buy/sell signal.


Relative strength index in xlsgen

xlsgen internally computes all the details, making it very easy to use in client applications. Basically only a data range is needed.

C++ code

xlsgen::IXlsChartPtr chart = worksheet->NewChart(xlsgen::charttype_relativestrengthindex, 4, 3, 18, 8); xlsgen::IXlsChartDynamicDataSourceSeriesPtr serie001 = chart->DynamicDataSource->AddSerie(); serie001->SeriesValuesFormula = L"Sheet1!$C$3:$C$99";