📄 stochastic.aspx
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<%@ Page Language="VB" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>
<%@ Import Namespace="dotnetCHARTING"%>
<HTML>
<HEAD>
<TITLE>.netCHARTING Financial Stochastic Sample</TITLE>
<script runat="server">
Sub Page_Load(sender As [Object], e As EventArgs)
' This sample demonstrates the use of the K% Stochastic and D% Stochastic
Dim connection As String = "Provider=Microsoft.Jet.OLEDB.4.0;data source=" + Server.MapPath("../../database/chartsample.mdb")
' First we declare a chart of type FinancialChart
' The Financial Chart
FinancialChart.Title = "Financial Chart"
FinancialChart.TempDirectory = "temp"
FinancialChart.Debug = True
FinancialChart.ShadingEffect = True
FinancialChart.LegendBox.Template = "%icon %name"
FinancialChart.Size = "800X600"
FinancialChart.XAxis.Scale = Scale.Time
FinancialChart.XAxis.FormatString = "MMM d"
FinancialChart.XAxis.TimeInterval = TimeInterval.Day
FinancialChart.YAxis.Label.Text = "Price (USD)"
FinancialChart.YAxis.FormatString = "currency"
FinancialChart.YAxis.ScaleRange.ValueLow = 11
FinancialChart.PaletteName=Palette.Three
' Here we load data samples from the FinancialDELL table from within chartsample.mdb
Dim priceDataEngine As New DataEngine()
priceDataEngine.ChartType = ChartType.Financial
priceDataEngine.ConnectionString = connection
priceDataEngine.DateGrouping = TimeInterval.Day
priceDataEngine.StartDate = New DateTime(2001, 8, 1)
priceDataEngine.EndDate = New DateTime(2001, 9, 30)
priceDataEngine.SqlStatement = "SELECT [Date], [High], [Low],[Open],[Close] FROM FinancialDELL WHERE Date >= #STARTDATE# AND Date <= #ENDDATE# ORDER BY Date "
priceDataEngine.DataFields = "xAxis=Date,High=High,Low=Low,Open=Open,Close=Close"
Dim sc As SeriesCollection = priceDataEngine.GetSeries()
Dim prices As Series = Nothing
If sc.Count > 0 Then
prices = sc(0)
Else
Return
End If
'prices.DefaultElement.ShowValue = True
prices.DefaultElement.ToolTip = "L:%Low-H:%High"
prices.DefaultElement.SmartLabel.Font = New Font("Arial", 6)
prices.DefaultElement.SmartLabel.Text = "O:%Open-C:%Close"
prices.Type = SeriesTypeFinancial.CandleStick
Dim cp As New CalendarPattern(TimeInterval.Day, TimeInterval.Week, "0000001")
cp.AdjustmentUnit = TimeInterval.Day
prices.Trim(cp, ElementValue.XDateTime)
prices.Name = "Prices"
FinancialChart.SeriesCollection.Add(prices)
' Create the second chart area
Dim volumeChartArea As New ChartArea()
volumeChartArea.Label.Text = "Stock Volume"
volumeChartArea.YAxis.Label.Text = "Volumes"
volumeChartArea.Series.Name = "Stock Volume"
volumeChartArea.HeightPercentage = 17
volumeChartArea.Series.DefaultElement.ToolTip = "%YValue"
FinancialChart.ExtraChartAreas.Add(volumeChartArea)
' Add a volume series to the chart area
Dim volumeDataEngine As New DataEngine()
volumeDataEngine.ConnectionString = connection
volumeDataEngine.DateGrouping = TimeInterval.Days
volumeDataEngine.StartDate = New DateTime(2001, 8, 1)
volumeDataEngine.EndDate = New DateTime(2001, 9, 30)
volumeDataEngine.SqlStatement = "SELECT [date],[volume] FROM FinancialDELL WHERE date >= #STARTDATE# AND date <= #ENDDATE# ORDER BY Date"
volumeDataEngine.DataFields = "xAxis=date,yAxis=volume"
Dim volumes As Series = volumeDataEngine.GetSeries()(0)
volumes.Trim(cp, ElementValue.XDateTime)
volumes.Name = "Volumes"
volumes.Type = SeriesType.Bar
volumeChartArea.SeriesCollection.Add(volumes)
FinancialChart.DefaultSeries.DefaultElement.Marker = New ElementMarker(ElementMarkerType.None)
FinancialChart.ChartAreaLayout.Mode = ChartAreaLayoutMode.Vertical
FinancialChart.DefaultSeries.Type = SeriesType.Spline
' Here we display the financial exponentially moving average for the prices series over five days
FinancialChart.SeriesCollection.Add(FinancialEngine.ExponentiallyWeightedMovingAverage(prices, ElementValue.High, 0.2, 5))
' Here we display the statistical exponentially moving average for the Volumes Series over five days
volumeChartArea.SeriesCollection.Add(StatisticalEngine.ExponentiallyWeightedMovingAverage(volumes, 0.2, 5))
' Create a new chart area for KFastStochastic and DStochastic.
Dim stochasticChartArea As New ChartArea("Stochastic")
stochasticChartArea.HeightPercentage = 20
stochasticChartArea.YAxis = New Axis()
FinancialChart.ExtraChartAreas.Add(stochasticChartArea)
' Here we display the kFastStochastic over a period of ten days for the Prices Series
Dim kFast As Series = FinancialEngine.KFastStochastic(prices, 10)
kFast.Type = SeriesType.Spline
kFast.DefaultElement.Color = Color.FromArgb(255, 99, 49)
If kFast.Elements.Count > 0 Then
stochasticChartArea.SeriesCollection.Add(kFast)
Else
Console.WriteLine("The series kfast is empty")
End If
' Here we display the DStochastic over a period of ten days.
' For the calculation of DStochastic we use ExponentiallyMovingAverage over 5 days.
Dim dStochastic As Series = FinancialEngine.DStochastic(prices, 10, 4, 5)
dStochastic.Type = SeriesType.Spline
dStochastic.DefaultElement.Color = Color.FromArgb(0, 255, 0)
If dStochastic.Elements.Count > 0 Then
stochasticChartArea.SeriesCollection.Add(dStochastic)
Else
Console.WriteLine("The series dStochastic is empty")
End If
End Sub 'Page_Load
</script>
</HEAD>
<BODY>
<DIV align="center">
<dotnet:Chart id="FinancialChart" runat="server"/>
</dotnet:Chart>
</DIV>
</BODY>
</HTML>
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