Trend Indicators

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Trend Indicators show the tendency of series values to move in a specific direction over time. Trend indicators are commonly used with financial charts.

StandardDeviation

This document contains the following sections:

Available Trend Indicators

The Chart control supports the following Trend indicators:

Trend indicator

Class

Specific parameters

Bollinger Bands

BollingerBands

BollingerBands.StandardDeviationMultiplier

BollingerBands.PointsCount

BollingerBands.ValueLevel

Mass Index

MassIndex

MassIndex.SumPointsCount

MassIndex.MovingAveragePointsCount

XYDiagram2D.IndicatorPane

XYDiagram2D.IndicatorAxisY

Standard Deviation

StandardDeviation

StandardDeviation.PointsCount

StandardDeviation.ValueLevel

XYDiagram2D.IndicatorPane

XYDiagram2D.IndicatorAxisY

How to Add a Trend Indicator

You can position the Standard Deviation and Mass Index indicators in a separate pane with a secondary y-axis. The following XAML shows how to add the Standard Deviation Indicator:

<dxc:ChartControl>
    <!--...-->
    <dxc:XYDiagram2D>
        <!--...-->
        <dxc:StockSeries2D DisplayName="Series">
            <dxc:StockSeries2D.Indicators>
                <dxc:StandardDeviation PointsCount="14"
                                       ValueLevel="Close"
                                       dxc:XYDiagram2D.IndicatorPane="{Binding ElementName=indicatorPane}"
                                       dxc:XYDiagram2D.IndicatorAxisY="{Binding ElementName=indicatorAxisY}"
                                       Legend="{Binding ElementName=indicatorLegend}"
                                       LegendText="Standard Deviation"                                           
                                       ShowInLegend="True"/>
            </dxc:StockSeries2D.Indicators>
            <!--...-->
        </dxc:StockSeries2D>
        <dxc:XYDiagram2D.Panes>
            <dxc:Pane x:Name="indicatorPane"/>
        </dxc:XYDiagram2D.Panes>
        <dxc:XYDiagram2D.SecondaryAxesY>
            <dxc:SecondaryAxisY2D x:Name="indicatorAxisY"
                                  Alignment="Far">
                <dxc:SecondaryAxisY2D.WholeRange>
                    <dxc:Range dxc:AxisY2D.AlwaysShowZeroLevel="False"/>
                </dxc:SecondaryAxisY2D.WholeRange>
            </dxc:SecondaryAxisY2D>
        </dxc:XYDiagram2D.SecondaryAxesY>
    </dxc:XYDiagram2D>
</dxc:ChartControl>

The following table lists classes and properties used to add the Standard Deviation indicator to a chart:

Class or Property Description
XYSeries2D.Indicators The series collection of indicators.
StandardDeviation The Standard Deviation indicator.
StandardDeviation.PointsCount The number of series points used to build the indicator.
StandardDeviation.ValueLevel Specifies the point value used to calculate the indicator.
XYDiagram2D.IndicatorPane Specifies the pane that contains the indicator.
XYDiagram2D.IndicatorAxisY Specifies the y-axis used with the indicator.
Indicator.Legend Specifies the legend that displays the legend.
Indicator.LegendText The text that shows with the identifier marker in the legend.
Indicator.ShowInLegend Specifies whether to show the indicator in the legend.
See Also