Longley’s Economic Regression Data
A macroeconomic data set which provides a well-known example for a highly collinear regression.
GNP implicit price deflator (1954=100).
Gross National Product.
Number of unemployed.
Number of people in the armed forces.
“Noninstitutionalized” population ≥ 14 years of age.
Number of people employed.
J. W. Longley (1967). An appraisal of least-squares programs from the point of view of the user. Journal of the American Statistical Association, 62, 819–841.
Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988). The New S Language. Monterey: Wadsworth & Brooks/Cole.
t = octave.dataset.longley; # TODO: Linear model # TODO: opar plot