Belgian-phones | R Documentation |
Belgium Phone Calls 1950-1973
Description
A list object with the annual numbers of telephone calls, in Belgium. The components are:
year
-
last two digits of the year.
calls
-
number of telephone calls made (in millions of calls).
Usage
phones
Source
P. J. Rousseeuw and A. M. Leroy (1987) Robust Regression & Outlier Detection. Wiley.
References
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.