association analysis

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A hierarchical method of classification which is divisive and monothetic. Association analysis uses χ2 as a measure of association between pairs of species (attributes) found at a range of sample sites (individuals). The species or attribute with the highest overall sum of χ2 values (i.e. the strongest links) with all other species is selected as the basis for subdivision into two groups of sites or of individuals, either having or lacking that attribute. The process is then repeated for each new group until no further subdivision is required.

Subjects: Plant Sciences and Forestry — Ecology and Conservation.

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