Longley's Regression Data

SUMMARY:

The longley.x and longley.y data sets contain regression data from a study by J.W. Longley. The regression is known to be highly collinear.

ARGUMENTS:

longley.x
matrix with 6 columns giving the GNP implicit price deflator (where 1954=100), the GNP, the number of unemployed people, the number of people in the armed forces, the noninstitutionalized population 14 years of age and older, and the year.
longley.y
number of people employed annually, from 1947 to 1962.

SOURCE:

Longley, J.W. (1967). An appraisal of least-squares programs from the point of view of the user. Journal of the American Statistical Association 62: 819-841. Republished by permission of the American Statistical Association.