index_routledge {tabula}

Routledge Measures

Description

Routledge Measures

Usage

index_routledge1(x, ...)

index_routledge2(x, ...)

index_routledge3(x, ...)

## S4 method for signature 'matrix'
index_routledge1(x)

## S4 method for signature 'matrix'
index_routledge2(x)

## S4 method for signature 'matrix'
index_routledge3(x)

Arguments

x

A m \times p numeric matrix of count data (absolute frequencies, i.e. a contingency table).

...

Currently not used.

Details

This assumes that the order of the matrix rows (from 1 to n) follows the progression along the gradient/transect.

Value

A numeric vector.

Author(s)

N. Frerebeau

References

Routledge, R. D. (1977). On Whittaker's Components of Diversity. Ecology, 58(5), 1120-1127. doi:10.2307/1936932.

See Also

Other beta diversity measures: index_binomial(), index_brainerd(), index_bray(), index_cody(), index_jaccard(), index_morisita(), index_sorenson(), index_whittaker(), index_wilson()