Displaying several time series on the same plot
Several related time series can be superimposed with different colours on the same display, making comparisons easier. The crosses at the individual data points are often omitted to reduce the clutter of the display.
Growth of urban areas in New Zealand
The four time series below describe the population growth rates in the four regions of New Zealand with the largest urban populations between 1997 and 2013. Predictions of population growth are important to governments — the infrastructure of education and health services must be expanded to cope with increases — and to retail businesses who will want to site outlets in areas of growth.
Observe that