首页   按字顺浏览 期刊浏览 卷期浏览 Investigating the Geometry of ap-Dimensional Data Set
Investigating the Geometry of ap-Dimensional Data Set

 

作者: BrianP. Dawkins,  

 

期刊: Journal of the American Statistical Association  (Taylor Available online 1995)
卷期: Volume 90, issue 429  

页码: 350-359

 

ISSN:0162-1459

 

年代: 1995

 

DOI:10.1080/01621459.1995.10476519

 

出版商: Taylor & Francis Group

 

关键词: Clustering;Collinearity;Exploratory data analysis;Hyperspace;Outlier

 

数据来源: Taylor

 

摘要:

This article concerns itself with exploratory data analysis in hyperspace, and discusses a method of data reduction intended to allow insight into the geometry of ap-dimensional data set wherep> 2. The essential idea is to examine various “views” through the data set using a suitably chosen line, the baseline, for defining a viewing direction. For a given data point, its distance from a suitable point on the baseline, called the vertex, and the angular separation between the baseline and the line connecting the vertex to the data point are taken as coordinates of an ordinary polar coordinate plot in two dimensions. The bulk of the article discusses empirical evidence for the utility of such a plot, which can be referred to as a coneplot, because points are essentially identified with the intersection inpdimensions of a hypersphere and a ray of a hypercone.

 

点击下载:  PDF (1474KB)



返 回