January 2011
Beginner to intermediate
720 pages
23h 29m
English
Question answered in this chapter:
I’m trying to analyze the upward trend in quarterly revenues of Amazon.com since 1996. Fourth quarter sales in the U.S. are usually larger (because of Christmas) than sales during the first quarter of the following year. This pattern obscures the upward trend in sales. Is there any way that I can graphically show the upward trend in revenues?
Time series data simply displays the same quantity measured at different points in time. For example, the data in the file Amazon.xlsx, a subset of which is shown in Figure 58-1, displays the time series for quarterly revenues in millions of dollars for Amazon.com. The data covers ...