ON CRITERIA FOR MEASURES OF COMPOSITIONAL DIFFERENCE
ON CRITERIA FOR MEASURES OF COMPOSITIONAL DIFFERENCE
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DOI:
10.1007/bf00891269
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发表时间:
1992-05-01
期刊:
影响因子:
--
通讯作者:
AITCHISON, J
中科院分区:
文献类型:
--
作者:
AITCHISON, J
Simple perceptions about the nature of compositions lead through logical necessity to certain forms of analysis of compositional data. In this paper the consequences of essential requirements of scale, perturbation and permutation invariance, together with that of subcompositional dominance, are applied to the problem of characterizing change and measures of difference between two compositions. It will be shown that one strongly advocated scalar measure of difference fails these tests of logical necessity, and that one particular form of scalar measure of difference (the sum of the squares of all possible log ratio differences in the components of the two compositions), although not unique, emerges as the simplest and most tractable satisfying the criteria.