The R Project SVN R

\name{faithful}
\alias{faithful}
\title{Old Faithful Geyser Data}
\usage{data(faithful)}
\format{A data frame with 272 observations on 2 variables.
  \tabular{rlll}{
    [,1]  \tab eruptions  \tab numeric  \tab Eruption time in mins \cr
    [,2]  \tab waiting    \tab numeric  \tab Waiting time to next
    eruption \cr
  }
}
\source{W. Härdle.}
\description{
  The `faithful' data frame has 272 rows and 2 columns; the waiting
  time between eruptions and the duration of the eruption for the Old
  Faithful geyser in Yellowstone National Park, Wyoming, USA.
}
\references{
  Härdle, W. (1991).
  \emph{Smoothing Techniques with Implementation in S}.
  New York: Springer.
    
  Azzalini, A. & Bowman, A. W. (1990).
  A look at some data on the Old Faithful geyser.
  \emph{Applied Statistics} \bold{39}, 357--365.
}
\examples{
data(faithful)
plot(faithful, main = "faithful data: Eruptions of Old Faithful",
     xlab = "Eruption time (min)",
     ylab = "Waiting time to next eruption (min)")
lines(lowess(faithful$eruptions, faithful$waiting, f = 2/3, iter = 3),
      col = "red")
}
\keyword{datasets}