The file geyser.rda contains 272 observations from the
Old Faithful Geyser in the Yellowstone National Park.
Each observation consists of two measurements : the
duration (in minutes) of the eruption and the waiting
time (in minutes) to the next eruption.
Arguments
Format
A data frame with 272 observations on the following 2 variables.
Duration
a numeric vector containing the duration (in minutes) of the eruption
Waiting.Time
a numeric vector containing the waiting time (in minutes) to the next eruption
Old Faithful erupts more frequently than any other big
geyser, although it is not the largest nor the most
regular geyser in the park. Its average interval between
two eruptions is about 76 minutes, varying from 45 - 110
minutes. An eruption lasts from 1.1/2 to 5 minutes,
expels 3,700 - 8,400 gallons (14,000 - 32,000 liters) of
boiling water, and reaches heights of 106 - 184 feet (30
- 55m). It was named for its consistent performance by
members of the Washburn Expedition in 1870. Old Faithful
is still as spectacular and predictable as it was a
century ago.
References
Hardle, W. (1991). "Smoothing Techniques with
Implementation in S". Springer-Verlag, New York.
Azzalini, A. and Bowman, A. W. (1990). "A look at some
data on the Old Faithful geyser". Applied Statistics 39,
357-365.