Use R

library ffp2

2. The arrivals data set comprises quarterly international arrivals (in thousands) to Australia from Japan, New Zealand, UK and the US. (a) Use autoplot(), ggseasonplot(), and ggsubseriesplot() to compare the dif- ferences between the arrivals from these four countries. (b) Can you identify any unusual observations? 2. The arrivals data set comprises quarterly international arrivals (in thousands) to Australia from Japan, New Zealand, UK and the US. (a) Use autoplot(), ggseasonplot(), and ggsubseriesplot() to compare the dif- ferences between the arrivals from these four countries. (b) Can you identify any unusual observations