Wikipedia calls this a 'Modified Moving Average'. Traders may know it as Welles Wilder's Moving Average, as it is the averaging method used in many of his indicators.
It's conceptually simpler than an EMA, the basic formula being:
average = (newValue + priorAverage * (n - 1)) / n
However, for any number of periods 'n', the outcome is identical to EMA(2 * n - 1). Since my basic indicators are all about efficient code reuse that is the implementation used here. Using the EMA formula is also slightly more CPU efficient than the formula above.
Version 1.0.
Category NinjaTrader 7 Indicators
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