Get Equation Text of Chart Trendline

Example

The following screenshot shows the Chart with a Trendline and its Equation Text is shown in Red color. We will retrieve this text using the Trendline.getDataLabels().getText() property in the following sample code.

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Java code to get the equation text of chart trendline

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-Java
// The path to the documents directory.
String dataDir = Utils.getDataDir(GetWorksheetOfChart.class);
// Create workbook object from source Excel file
Workbook workbook = new Workbook(dataDir + "source.xlsx");
// Access the first worksheet
Worksheet worksheet = workbook.getWorksheets().get(0);
// Access the first chart inside the worksheet
Chart chart = worksheet.getCharts().get(0);
// Calculate the Chart first to get the Equation Text of Trendline
chart.calculate();
// Access the Trendline
Trendline trendLine = chart.getNSeries().get(0).getTrendLines().get(0);
// Read the Equation Text of Trendline
System.out.println("Equation Text: " + trendLine.getDataLabels().getText());

Output generated by the sample code

This is the console output of the above sample code.

Equation Text: y = 8.1333x + 5