1

The dataset bluebirdlite contains log sales and prices for the “lite” version of bluebird chips. Quantify the relationship between sales and price.

library(TSA)
data(bluebirdlite)

2

In class we looked a modelling the relationship between mortality, temperature and particulate matter. Repeat the analysis but seasonally difference all three series first. Compare the results.

You can get the cmort, tempr and part times series with:

  load(url("http://www.stat.pitt.edu/stoffer/tsa3/tsa3.rda"))

Have a look at the code from Feb 9 if you want to turn them into a data frame.