Longley dataset
===============

Description
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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
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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
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This is public domain.
