期刊
COMPUTERS & GEOSCIENCES
卷 34, 期 12, 页码 1682-1696出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cageo.2007.06.011
关键词
Balance; CoDaPack; Simplex; Aitchison geometry; Composition; Isometric log-ratio transform
A statistical analysis of compositional data based on the Aitchison geometry of the simplex requires an appropriate basis for representing the data. A simple and intuitive way of building such a basis employs a sequential binary partition of the compositional vector. The partition, together with some statistical Summaries of the coordinates, or balances, can be represented in a dendrogram-type graph. In this paper we introduce an implementation of this methodology inside CoDaPack, which is freeware. An example with real data illustrates the use of the Balance-Dendrogram routine. (c) 2008 Elsevier Ltd. All rights reserved.
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