Nonseasonal, No Trend

This Time Series model is equivalent to the simple exponential smoothing model. Note that, by default, the first smoothed value will be computed based on an initial S0 value equal to the overall mean of the series.

See also, Nonseasonal, Damped Trend; Nonseasonal, Exponential Trend; and Nonseasonal, Linear Trend (Holt's Two-Parameter Method).