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.