Nevron .NET Vision Documentation
Exponential Moving Average

Syntax
EMA(values; period)
Arguments
The 'values' argument must be an array.
The 'period' argument must be a constant greater or equal to 1.
Result
The result is an array.
Description

A Moving Average is an indicator that shows the average value of a security's price over a period of time. An exponential (or exponentially weighted) moving average is calculated by applying a percentage of today's price to yesterday's moving average value. Exponential moving averages place more weight on recent prices. The formula of the exponential moving average is:


    EMA[n] = values[n] * Exp_Percent + EMA[n-1] * (1 - Exp_Percent)


The exponential percentage is calculated internally from the 'period' parameter with the following formula:


    Exp_Percent = 2 / (Time_Periods + 1)


If you prefer to work with exponential percentages you can use the following formula to convert the percentages to time periods:


    Time_Periods = (2 / Exp_Percent) - 1

Related Examples
Windows Forms: All Examples\Data Manipulation\Functions\Financial\Moving Averages

 

 


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