| NOV 1991
SIDEBAR: CALCULATING TSI
CALCULATING TSI 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<a<1). Alpha may be estimated as 2/(n+1), where n is the simple moving average length.
by Technical Analysis, Inc.
Technical Analysis of STOCKS & COMMODITIES
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