Longley dataset¶
Description¶
The Longley dataset contains various US macroeconomic variables that are known to be highly collinear. It has been used to appraise the accuracy of least squares routines.
Notes¶
Number of Observations - 16
Number of Variables - 6
Variable name definitions::
TOTEMP - Total Employment
GNPDEFL - GNP deflator
GNP - GNP
UNEMP - Number of unemployed
ARMED - Size of armed forces
POP - Population
YEAR - Year (1947 - 1962)
Source¶
The classic 1967 Longley Data
http://www.itl.nist.gov/div898/strd/lls/data/Longley.shtml
Longley, J.W. (1967) "An Appraisal of Least Squares Programs for the
Electronic Comptuer from the Point of View of the User." Journal of
the American Statistical Association. 62.319, 819-41.
Copyright¶
This is public domain.