*
* Example BIRTHMAR.DAT from pp 160-161
*
open data birthmar.dat
calendar(q) 1985 1 4
data(format=free,org=columns) 1985:1 1992:4 date birth marriages
*
@acf marriages
*
* The seasonal smoothing is done with ESMOOTH with the option SEASONAL=ADDITIVE.
* To get the model shown, you set the level smoothing parameter (called ALPHA) to
* 0, and the seasonal smoothing parameter (called DELTA) to the "alpha" value
* described (here .435).
*
esmooth(seasonal=additive,alpha=0,delta=0.435,initial=start,fitted=sesfore) marriages
@uforeerrors marriages sesfore 5 *
set residuals = marriages-sesfore
@acf residuals 5 *