freeny.x
A matrix of predictor variables: 39 quarterly observations of 4 variables.
The columns are "lag quarterly revenue" (revenue from the previous quarter),
"price index", "income level", and "market potential".
freeny.y
A time series of quarterly revenue: 39 observations from Q2 1962 to Q4 1971.
freeny
A data.frame containing the data in freeny.y and freeny.x.