Indicator variables
The Stochastic K depends on the following variable:
 Periods  the number of previous time periods used over which the closing price is compared.
Now the formulae for the Stochastic %K over a is:
100 x (Last Close  Lowest low)/(Highest high  Lowest low)
where the "lowest low" (respec. "highest high") is the highest (respec. lowest) close of the asset over the period under consideration. Since the "Last close", will lie between the highest high and lowest low this indicator will lie between 0 and 100.
Visual Basic (Declaration)  

Public Overloads Shared Function KFastStochastic( _ ByVal s As Series, _ ByVal noOfPeriods As Integer _ ) As Series 
Visual Basic (Usage)  Copy Code 


C#  

public static Series KFastStochastic( Series s, int noOfPeriods ) 
Parameters
 s
 An financial series where the first element is the closing price in the last trading period, the second term is the closing price in the previous trading period and so on.
 noOfPeriods
 An integer which represents the number of previous time periods used over which the closing price is compared.