WeightedMovingAverageIndicator Class
A weighted moving average (WMA) indicator.
Namespace: DevExpress.XamarinForms.Charts
Assembly: DevExpress.XamarinForms.Charts.dll
NuGet Package: DevExpress.XamarinForms.Charts
Declaration
public class WeightedMovingAverageIndicator :
CalculatedSeries
Remarks
This indicator looks as follows:
ChartView also supports the following Moving Average indicators:
- Simple Moving Average (SMA)
- Exponential Moving Average (EMA)
- Triangular Moving Average (TMA)
Add an Indicator to a Series
This example demonstrates how to build a weighted moving average indicator for Close values of a stock series.
- Add the
WeightedMovingAverageIndicator
object to the chart’s collection of series (ChartView.Series). - Set the indicator’s Data property to a CalculatedSeriesDataAdapter class instance. Use this object’s Series property to specify a series for which the indicator should be calculated.
- Use the ValueLevel and PointsCount properties to specify the price level of a financial series point and the number of data points used to calculate the indicator.
<dxc:ChartView x:Name="chart">
<dxc:ChartView.Series>
<dxc:StockSeries>
<dxc:StockSeries.Data>
<dxc:SeriesDataAdapter DataSource="{Binding StockPrices}" ArgumentDataMember="Date">
<dxc:ValueDataMember Type="High" Member="High" />
<dxc:ValueDataMember Type="Low" Member="Low" />
<dxc:ValueDataMember Type="Open" Member="Open" />
<dxc:ValueDataMember Type="Close" Member="Close" />
</dxc:SeriesDataAdapter>
</dxc:StockSeries.Data>
</dxc:StockSeries>
<dxc:WeightedMovingAverageIndicator>
ValueLevel="Close"
PointsCount="20"
DisplayName="WMA 20">
<dxc:WeightedMovingAverageIndicator.Data>
<dxc:CalculatedSeriesDataAdapter Series="{Binding Series[0], Source={x:Reference chart}}"/>
</dxc:WeightedMovingAverageIndicator.Data>
</dxc:WeightedMovingAverageIndicator>
</dxc:ChartView.Series>
</dxc:ChartView>
Customize Indicator Appearance
To change the indicator line appearance, set the WeightedMovingAverageIndicator.Style property to the LineIndicatorStyle object with the specified Stroke and StrokeThickness properties.
<dxc:WeightedMovingAverageIndicator>
<dxc:WeightedMovingAverageIndicator.Style>
<dxc:LineIndicatorStyle Stroke="#9859c9"/>
</dxc:WeightedMovingAverageIndicator.Style>
<!--Indicator Data-->
</dxc:WeightedMovingAverageIndicator>
Implements
Inheritance
Object
ChartSeriesElement
SeriesBase
Series
CalculatedSeries
WeightedMovingAverageIndicator
See Also