| longley2 {RXshrink} | R Documentation |
Art Hoerl's update of the infamous Longley(1967) benchmark dataset
Description
Data from the "Employment and Training Report of the President, 1976" compiled by Art Hoerl, University of Delaware. This data.frame contains both [1] some different ("corrected") numerical values from those used by Longley(1967) and [2] the added years of 1963-1975. Longley(1967) used only data from the 16 years of 1947 through 1962.
Usage
data(longley2)Format
A data.frame of 7 variables covering 29 consecutive years; no NAs.
- GNP.deflator
GNP price deflation index.
- Unemployed
Unemployment percentage.
- Armed.Forces
Size of the Armed Forces.
- Population
Total U.S. Population.
- Year
1947 to 1975.
- Employed
employment.
- GNP
Gross National Product.
References
Longley JW. An appraisal of least-squares programs from the point of view of the user. J. Amer. Statist. Assoc. 1967; 62: 819-841.
Hoerl AE, Kennard RW. Ridge Regression - Present and Future. 12th Symposium on the Interface. 1979. Waterloo, Ontario, Canada.