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Demand forecasting: Holt's procedure

The procedure of Holt (1957) is applied to forecast a time-series with a trend..


Alpha smoothing constant for the base level
Beta smoothing constant for the slope


index of time periods

b(0,0) initial value of the base level
b(1,0) initial value of the slope
Y(t) observed demand in period t


  • regular demand with linear trend


- Silver/Peterson (1985), Paragraph 4.5.3

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