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Routledge Measures

Usage

index_routledge1(x, ...)

index_routledge2(x, ...)

index_routledge3(x, ...)

# S4 method for matrix
index_routledge1(x)

# S4 method for matrix
index_routledge2(x)

# S4 method for 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.

Value

A numeric vector.

Details

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

References

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

Author

N. Frerebeau