1887

Abstract

This paper presents two extensions of vigour and pattern difference coefficients suitable for quantitative characters and gives some properties of these coefficients, with illustrative examples. The first generalization has been proposed ( Sneath, 1979 ) for use in identification; the second, mentioned by Sneath & Sokal (1973) , may be of considerable taxonomic use. Both generalizations when used on binary characters reduce to the original vigour and pattern coefficients, as proposed by Sneath (1968) .

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/content/journal/micro/10.1099/00221287-122-2-247
1981-02-01
2021-07-30
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