phones {boot}R Documentation

Belgium Phone Calls 1950-1973

Description

The phones data frame has 24 rows and 2 columns.

Usage

data(phones)

Format

This data frame contains the following columns:

year
The last two digits of the year.
calls
The number of telephone calls made (in millions of calls).

Source

The data were obtained from

Rousseeuw, P.J. and Leroy, A.M. (1987) Robust Regression and Outlier Detection. John Wiley.

References

Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.

Venables, W.N. and Ripley, B.D. (1994) Modern Applied Statistics with Splus. Springer-Verlag