![]() ![]() Additive: Systematic component = level + trend + seasonal factor.Multiplicative: Systematic component = level X trend X seasonal factor. ![]() The equation for calculating the systematic comĀponent may take a variety of forms: In its most general form, the systematic component of demand data contains a level, a trend, and a seasonal factor. The goal of any forecasting method is to predict the systematic component of demand and estiĀmate the random component.
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