March 2019
Beginner to intermediate
448 pages
13h 14m
English
In general, we will work with either quarterly, monthly, or weekly data. This is particularly interesting, because data arising from the same quarter/month/week will exhibit seasonal patterns. For example, if we are working with monthly sales of toys, we will see that they are usually bought in December as gifts. In consequence, all the data points related to December will be correlated. Seasonality terms have associated P/Q terms, which are analogous to their nonseasonal p/q counterparts.
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