Monthly U.S. average prescription costs for the months 08/1986 -
The format is:
Time-Series [1:68] from 1987 to 1992: 14.5 14.7 14.8 14.6 14.3 ...
Frees, E. W., Data Analysis Using Regression
Models, Prentice Hall, 1996.
## maybe str(prescrip) ; plot(prescrip) ...
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