.netCHARTING v10.5 Documentation


dotnetCHARTING Namespace > StatisticalEngine Class > LowerBollingerBands Method : LowerBollingerBands(SeriesCollection,Double,Int32) Method
A collection of series objects. For example, to evaluate this indicator for two series you will need to pass a series collection containing this two series.
The number of standard deviation which the lower band in shifted from the moving average.
The length of the moving average used within the evaluation of the Bollinger Bands. Note that this also corresponds to the length of the period over which the standard deviation is evaluated.
LowerBollingerBands(SeriesCollection,Double,Int32) Method
Evaluates the position of the Lower Bollinger Band for a given standard deviation level.
Syntax
'Declaration
 
Public Overloads Shared Function LowerBollingerBands( _
   ByVal sc As SeriesCollection, _
   ByVal standardDeviationLevel As Double, _
   ByVal lengthOfMA As Integer _
) As SeriesCollection
'Usage
 
Dim sc As SeriesCollection
Dim standardDeviationLevel As Double
Dim lengthOfMA As Integer
Dim value As SeriesCollection
 
value = StatisticalEngine.LowerBollingerBands(sc, standardDeviationLevel, lengthOfMA)
public static SeriesCollection LowerBollingerBands( 
   SeriesCollection sc,
   double standardDeviationLevel,
   int lengthOfMA
)

Parameters

sc
A collection of series objects. For example, to evaluate this indicator for two series you will need to pass a series collection containing this two series.
standardDeviationLevel
The number of standard deviation which the lower band in shifted from the moving average.
lengthOfMA
The length of the moving average used within the evaluation of the Bollinger Bands. Note that this also corresponds to the length of the period over which the standard deviation is evaluated.

Return Value

A series where the first term corresponds to the value of the Upper Bollinger Band for the latest periods, the second terms to the previous period and so on.
Exceptions
ExceptionDescription
System.ArgumentExceptionThrown when the series in empty or the number of standard deviations considered (i.e. the parameters standardDeviationLevel) is not positive number.
Remarks
Please note that by standard deviation level we not only refer to the number of standard deviations shifts away from the moving average at which the Lower Bollinger Band is drawn but also the number of time series points which are used in the evaluation of the standard deviation and the moving average.
Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also

Reference

StatisticalEngine Class
StatisticalEngine Members
Overload List