Sales of shampoo over a three year period.
Source
Makridakis, Wheelwright and Hyndman (1998) Forecasting: methods and applications, John Wiley & Sons: New York. Chapter 3.
Examples
plot(shampoo)
Sales of shampoo over a three year period.
Makridakis, Wheelwright and Hyndman (1998) Forecasting: methods and applications, John Wiley & Sons: New York. Chapter 3.
plot(shampoo)