Smoothing
parameters are entered in the middle block on the
forecasting form. Parameter values
must be between 0.0 and 1.0. NOTE: not
all parameter values are required for some methods. For example, Winters’ technique requires all three (alpha, beta,
and gamma), while single unadjusted exponential smoothing only requires
alpha. For more information see the
discussion on Exponential Smoothing Methods.