Longley 數據集¶

描述¶

Longley 數據集包含各種已知的具有高度共線性的美國總體經濟變數。它已被用於評估最小平方常式的準確性。

註解¶

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)

來源¶

1967 年經典的 Longley 數據

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.

版權¶

這是公共領域。

上次更新：2024 年 10 月 03 日