Jaccard Index

Jaccard Index

Usage

index_jaccard(x, y, ...)

# S4 method for class 'character,character'
index_jaccard(x, y)

# S4 method for class 'logical,logical'
index_jaccard(x, y)

# S4 method for class 'numeric,numeric'
index_jaccard(x, y)

Arguments

x, y

A numeric vector.

...

Currently not used.

Value

A numeric vector.

Details

Data are standardized on a presence/absence scale (\(0\)/\(1\)) beforehand.

References

Magurran, A. E. (1988). Ecological Diversity and its Measurement. Princeton, NJ: Princeton University Press. doi:10.1007/978-94-015-7358-0 .

See also

Other beta diversity measures: index_binomial(), index_brainerd(), index_bray(), index_cody(), index_morisita(), index_routledge, index_sorensen(), index_whittaker(), index_wilson()

Author

N. Frerebeau