Time Plot nodes allow you to view one or more time series
plotted over time. The series you plot must contain numeric values and are assumed to occur over a
range of time in which the periods are uniform.
Figure 1. Plotting sales of men's and women's clothing and jewelry over
time
Creating interventions and events
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You can create Event and Intervention fields from the time plot by generating
a derive (flag or nominal) node from the context menus. For example, you could create an event field
in the case of a rail strike, where the drive state is True if the event happened and False
otherwise. For an Intervention field, for a price rise for example, you could use a derive count to
identify the date of the rise, with 0 for the old price and 1 for the new price. See Derive node for more information.