Public Overloads Shared Function AroonDownOverPeriod( _
   ByVal s As Series, _
   ByVal lengthOfPeriod As Integer _
) As Series

Visual Basic (Usage)	Copy Code
Dim s As Series Dim lengthOfPeriod As Integer Dim value As Series   value = FinancialEngine.AroonDownOverPeriod(s, lengthOfPeriod)

public static Series AroonDownOverPeriod( 
   Series s,
   int lengthOfPeriod
)

Parameters

s

A financial series where the first term is the traded high of the asset within the most recent trading period, the second term is the traded high of the asset within the previous period and so on.

lengthOfPeriod

An integer which represents the length of the period over which the indicator will be iteratively evaluated.

Evaluation of the Aroon Down Indicator

The Aroon Down indicator for each period is given by:

100(n - (number of days since last highest high over n days))/n

where n is the number of days being considered (a reasonable default value for n is 14).

Reference