It can be worked around in the following manner:ġ. Create a new chart in Excel and add a trendline.Ģ. Add the Equation or the R-Square: Select the trendline then right-click the trendline or choose Format>Selected Trendline from the menu.ģ. Now simply open the workbook with ExcelApplication.Open, retrieve the trendline and program it any way you like (Including changing the trendline regression type or value or show/hide the Equation or R-Squared value): Trendline trend = oSeries.Trendlines //now this will work trend. This issue persists for the BIFF (XLS) file format.
This issue has been resolved for charts in the OOXML file format (XLSX, XLSM) as part of implementing OOXML support for ExcelApplication in OfficeWriter v8.0. From that point on you can programmatically change the label as you like using the properties. However, if you open, with ExcelApplication, an existing workbook which already has a Trendline label these properties will work properly. To display the trendline equation, click Show equation, and then click Show in legend. Setting these properties to true does not seem to have any effect and the label is not shown. You can display or hide trendlines in the bar, line, area, bubble. The Trendline object has the properties to ShowEquation and ShowRSquaredValue. Having to convert all my readable references such as tblLoansBalance via vba and seeing datae2:e1000 instead was visually painful and the idea of maintaining such a document is no longer conceivable.
#Excel trendline see equation series#
Trendlines can also be created as objects in ExcelApplication through the Series of a Chart. I had to send an excel file to a client today who has Sheets but not Excel and was horrified to discover Sheets does not process tables.
Now we know that the data set shown above has a slope of 165.4 and. It is possible, in Excel, to add a label to a trendline of a chart that shows the Equation or the R-squared value of the trendline like in the image below: Select Add Trendline Check Display Equation on Chart.
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