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列联表数据的局部影响分析 被引量:3

Local Influential Analysis in Contingency Tables
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摘要 该文研究列联表离散数据的局部影响分析.基于幂散布度量(Power-divergence Measure)定义了离散数据模型的Ⅰ距离函数,影响图和一致法曲率,并针对离散数据构建了一种局部影响分析方法.利用该方法给出了二维列联表独立模型的局部影响分析结果,并通过实例分析验证了该方法的有效性. This paper studies the local influence in contingency tables.Based on powerdivergence statistics,the I distance function,associated influential graph and the conformal normal curvature are constructed,and a new local influence method is proposed to detect the influential cells in r×c contingency table.The results are applied to detect the influential observations in the independent model of the contingency tables.Finally an example is used for illustration.
作者 何利平 石磊
出处 《数学物理学报(A辑)》 CSCD 北大核心 2011年第2期518-527,共10页 Acta Mathematica Scientia
基金 国家自然科学基金(10761010) 国家社科基金(XTJ001) 云南省自然科学基金资助
关键词 离散数据 局部影响分析 幂散布度量 二维列联表 I距离函数 一致法曲率 Discrete data Local influence Power-divergence statistics Contingence table Idistance function Conformal normal curvature.
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同被引文献23

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