| % File src/library/datasets/man/freeny.Rd |
| % Part of the R package, https://www.R-project.org |
| % Copyright 1995-2007 R Core Team |
| % Distributed under GPL 2 or later |
| |
| \name{freeny} |
| \docType{data} |
| \alias{freeny} |
| \alias{freeny.x} |
| \alias{freeny.y} |
| \title{Freeny's Revenue Data} |
| \description{ |
| Freeny's data on quarterly revenue and explanatory variables. |
| } |
| \usage{ |
| freeny |
| freeny.x |
| freeny.y |
| } |
| \format{ |
| There are three \sQuote{freeny} data sets. |
| |
| \code{freeny.y} is a time series with 39 observations on quarterly |
| revenue from (1962,2Q) to (1971,4Q). |
| |
| \code{freeny.x} is a matrix of explanatory variables. The columns |
| are \code{freeny.y} lagged 1 quarter, price index, income level, and |
| market potential. |
| |
| Finally, \code{freeny} is a data frame with variables \code{y}, |
| \code{lag.quarterly.revenue}, \code{price.index}, \code{income.level}, |
| and \code{market.potential} obtained from the above two data objects. |
| } |
| \source{ |
| A. E. Freeny (1977) |
| \emph{A Portable Linear Regression Package with Test Programs}. |
| Bell Laboratories memorandum. |
| } |
| \references{ |
| Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) |
| \emph{The New S Language}. |
| Wadsworth & Brooks/Cole. |
| } |
| \examples{ |
| 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) |
| } |
| \keyword{datasets} |