Freeny's data on quarterly revenue and explanatory variables.

```
freeny
freeny.x
freeny.y
```

There are three ‘freeny’ data sets.

`freeny.y`

is a time series with 39 observations on quarterly
revenue from (1962,2Q) to (1971,4Q).

`freeny.x`

is a matrix of explanatory variables. The columns
are `freeny.y`

lagged 1 quarter, price index, income level, and
market potential.

Finally, `freeny`

is a data frame with variables `y`

,
`lag.quarterly.revenue`

, `price.index`

, `income.level`

,
and `market.potential`

obtained from the above two data objects.

Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988)
*The New S Language*.
Wadsworth & Brooks/Cole.

# NOT RUN { require(stats); require(graphics) summary(freeny) pairs(freeny, main = "freeny data") # gives warning: freeny$y has class "ts" summary(fm1 <- lm(y ~ ., data = freeny)) opar <- par(mfrow = c(2, 2), oma = c(0, 0, 1.1, 0), mar = c(4.1, 4.1, 2.1, 1.1)) plot(fm1) par(opar) # }