(b) In the next table, one computes, for each pair of sites and each row (species), the proportion of partial similarity values in the row that are larger than or equal to the partial similarity of the pair of sites being considered. The value under consideration is itself included in the proportion. For example, for the pair of ponds (214, 233), the third species has a similarity of 0.67. In the third row, there are 3 values out of 10 that are larger than or equal to 0.67. Thus the ratio associated with the pair (214, 233) in the table is 0.3.
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