Monthly sales and advertising expenditure for an automotive parts company.
Format
Data frame containing the following columns:
- advert
Monthly Advertising expenditure
- sales
Monthly sales volume
Source
Makridakis, Wheelwright and Hyndman (1998) Forecasting: methods and applications, John Wiley & Sons: New York. Exercise 6.7. Exercise 8.1.
Examples
plot(sales ~ advert, data=advert)
