geyser {MASS} | R Documentation

## Old Faithful Geyser Data

### Description

A version of the eruptions data from the ‘Old Faithful’ geyser in Yellowstone National Park, Wyoming. This version comes from Azzalini and Bowman (1990) and is of continuous measurement from August 1 to August 15, 1985.

Some nocturnal duration measurements were coded as 2, 3 or 4 minutes, having originally been described as ‘short’, ‘medium’ or ‘long’.

### Usage

    geyser

### Format

A data frame with 299 observations on 2 variables.

`duration` | numeric | Eruption time in mins
`waiting` | numeric | Waiting time for this eruption

### Note

The `waiting` time was incorrectly described as the time to the next eruption in the original files, and corrected for MASS version 7.3-30.

### References

Azzalini, A. and Bowman, A. W. (1990) A look at some data on the Old Faithful geyser. Applied Statistics 39, 357–365.

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

### See Also

`faithful`.

CRAN package sm.

[Package MASS version 7.3-45 Index]