Description Usage Arguments Value
This function follows the code from 'EcoSimR' package by Gotelli, Hard and Ellison, specifically, it re-uses their 'checker' function. Note: Before the calculation, species (rows) with zero occurrences, and sites (columns) with zero species are removed from m.
1 |
m |
Community data matrix with species as rows and sites as columns. Can contain either incidences (1/0) or abundances (natural numbers). |
clean |
Logical. Do you want to remove zero-sum rows or columns? When the index needs the "d" fraction (sites where no species occurs), only zero-sum rows are removed. |
A single number, the number of checkerboard species pairs.
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