Time series smoothingWhy is it called Single Exponential Smoothing?

SF4 = aA3 + a(1- a)1A2 + a (1- a)2A1 + (1- a)3 SF1

Observe that the weights are governed by the exponents of the factor (1- a)

The algorithm’s seed (SF1) is determined exogenously using judgment, etc.

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