Belgium Phone Calls 1950-1973

Arguments

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

SUMMARY

The phones data frame has 24 rows and 2 columns.

DATA DESCRIPTION

This data frame contains the following columns:

SOURCE

The data were obtained from

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

OTHER 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


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