Longley 数据集¶
描述¶
Longley 数据集包含各种众所周知的美国宏观经济变量,这些变量具有高度的共线性。它被用来评估最小二乘程序的准确性。
笔记¶
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)
来源¶
1967 年经典的 Longley 数据
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.
版权¶
这是公共领域。
最后更新:2024 年 10 月 3 日