The sales time series
BJsales and leading indicator
BJsales.lead each contain 150 observations.
The objects are of class
The data are given in Box & Jenkins (1976). Obtained from the Time Series Data Library at https://robjhyndman.com/TSDL/
G. E. P. Box and G. M. Jenkins (1976): Time Series Analysis, Forecasting and Control, Holden-Day, San Francisco, p. 537.
P. J. Brockwell and R. A. Davis (1991): Time Series: Theory and Methods, Second edition, Springer Verlag, NY, pp. 414.