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Bivariate Extensions of the Boxplot

 

作者: KennethM. Goldberg,   Boris Iglewicz,  

 

期刊: Technometrics  (Taylor Available online 1992)
卷期: Volume 34, issue 3  

页码: 307-320

 

ISSN:0040-1706

 

年代: 1992

 

DOI:10.1080/00401706.1992.10485280

 

出版商: Taylor & Francis Group

 

关键词: Ellipsoid;Outlier;Resistant line;Robust estimators

 

数据来源: Taylor

 

摘要:

The boxplot has proven to be a very useful tool for summarizing univariate data. Several options of bivariate boxplot-type constructions are discussed. These include both elliptic and asymmetric plots. An inner region contains 50% of the data, and a fence identifies potential outliers. Such a robust plot shows location, scale, correlation, and a resistant regression line. Alternative constructions are compared in terms of efficiency of the relevant parameters. Additional properties are given and recommendations made. Emphasis is given to the bivariate biweightMestimator. Several practical examples illustrate that standard least squares ellipsoids can give graphically misleading summaries.

 

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