Regression Lines

May 28, 2021

A Regression Line is a series indicator that allows you to perform linear regression analysis over series points. The analysis aims to find a line that is as close to all series’s points as possible using the method of least squares to determine the underlying line’s equation.

How to Add a Regression Line to a Chart

The following markup shows how to build a regression line based on a stock series‘s High values:

XAML

xaml

<dxc:StockSeries2D.Indicators> 
    <dxc:RegressionLine ValueLevel="High" 
                        ShowInLegend="True" 
                        LegendText="Regression Line"/>
</dxc:StockSeries2D.Indicators>

The code above uses the following classes and properties:

Class or Property	Description
XYSeries2D.Indicators	The series indicators’ collection.
RegressionLine	The regression line.
RegressionLine.ValueLevel	Specifies a point value used to build a regression line.
Indicator.ShowInLegend	Specifies whether to show a regression line in the legend.
Indicator.LegendText	Specifies the text that indicates the indicator in the legend.