\name{airpass}
\alias{airpass}
\title{Monthly Airline Passenger Numbers 1949-1960}
\description{The classic Box & Jenkins airline data. Monthly totals of international airline passengers (1949--1956).}
\usage{airpass}
\format{A monthly time series, in thousands.
}
\source{Makridakis, Wheelwright and Hyndman (1998) \emph{Forecasting: methods and applications}, John Wiley
& Sons: New York. Exercise 2.4, Chapter 3, Exercise 4.7.}

\references{Box, Jenkins and Reinsell (1994) \emph{Time series
analysis: forecasting and control}, 3rd edition, Holden-Day: San
Francisco. Series G.}

\keyword{datasets}
\examples{plot(airpass)
seasonplot(airpass)
tsdisplay(airpass)
}
