index_hurlbert: Hurlbert's Rarefaction

In tabula: Analysis and Visualization of Archaeological Count Data

Hurlbert's Rarefaction

Description

Hurlbert's unbiased estimate of Sander's rarefaction.

Usage

index_hurlbert(x, ...)

## S4 method for signature 'numeric'
index_hurlbert(x, sample, ...)

Arguments

x	A numeric vector of count data (absolute frequencies).
...	Currently not used.
sample	A length-one numeric vector giving the sub-sample size. The size of sample should be smaller than total community size.

Value

A numeric vector.

Author(s)

N. Frerebeau

References

Hurlbert, S. H. (1971). The Nonconcept of Species Diversity: A Critique and Alternative Parameters. Ecology, 52(4), 577-586. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.2307/1934145")}.

Sander, H. L. (1968). Marine Benthic Diversity: A Comparative Study. The American Naturalist, 102(925), 243-282.

See Also

Other alpha diversity measures: index_ace(), index_baxter(), index_berger(), index_boone(), index_brillouin(), index_chao1(), index_chao2(), index_ice(), index_margalef(), index_mcintosh(), index_menhinick(), index_shannon(), index_simpson(), index_squares(), observed()

tabula documentation built on April 4, 2025, 5:09 a.m.