Detecting outliers with Cook's DI statistic

被引:0
作者
Jensen, DR [1 ]
Ramirez, DE [1 ]
机构
[1] Virginia Polytech Inst & State Univ, Dept Stat, Blacksburg, VA 24061 USA
来源
MINING AND MODELING MASSIVE DATA SETS IN SCIENCE, ENGINEERING, AND BUSINESS WITH A SUBTHEME IN ENVIRONMENTAL STATISTICS | 1997年 / 29卷 / 01期
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中图分类号
C93 [管理学]; O22 [运筹学];
学科分类号
070105 ; 12 ; 1201 ; 1202 ; 120202 ;
摘要
We introduce a generalized F distribution, and we show how to compute numerically p-values for this family of distributions. Natural versions of Cook's D statistic are distributed as such distributions. We apply these techniques to determine the statistical outliers (for single observations and joint observations) for the Intercountry Life-Cycle Savings Data from Belsley, Kuh, and Welsch.
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页码:581 / 586
页数:6
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