Time Series Analysis - Exponential Smoothing Models

Shown below is a listing of available exponential smoothing models, as described in Gardner (1985). The specific formulas for computing the one-step-ahead forecasts are also provided in that reference, and will not be repeated here. Click the respective model name in order to get more information on that model (see also, Time Series Analysis Index).

Nonseasonal, No Trend Nonseasonal, Exponential Trend
Additive Season, No Trend Additive Season, Exponential Trend
Multiplicative Season, No Trend Multiplicative Season, Exponential Trend
Nonseasonal, Linear Trend Nonseasonal, Damped Trend
Additive Season, Linear Trend Additive Season, Damped Trend
Multiplicative Season, Linear Trend Multiplicative Season, Damped Trend