Home > Articles > Volume 10 (1992) > Chapter 5 (May 1992) > V.10:5 (214-219): SIDEBAR: Calculating TrSI

V.10:5 (214-219): SIDEBAR: Calculating TrSI

V.10:5 (214-219): SIDEBAR: Calculating TrSI
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CALCULATING TrSI

Calculating the true strength index requires an introduction to exponentially smoothed moving averages (EMA):

Exponential Moving Average—The EMA for day D is calculated as: EMAD = aPRD + (1-a)EMAD-1 where PR is the price on day D and a (alpha) is a smoothing constant (0




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