hurlbert: Hurlbert's Expected Number of Species

In benthos: Marine Benthic Ecosystem Analysis

Hurlbert's Expected Number of Species

Description

The expected number of species in a sample of n individuals:

Usage

hurlbert(.data = NULL, taxon, count, n = 100L)

hurlbert_(.data = NULL, taxon, count, n = 100L)

Arguments

.data	data in a data.frame, tibble, data.table, database etc.
taxon	name of column in .data containing taxa
count	name of column in .data containing counts
n	number of individuals in a standard sample

Value

expected number of species in a sample of n individuals

Functions

• hurlbert_(): version suitable for calling from a function (see package lazyeval).

References

Hurlbert, S.H., 1971. The Nonconcept of Species Diversity: A Critique and Alternative Parameters. Ecology 52:577-586.

Examples

     hurlbert(
         taxon = c("Euspira pulchella", "Nephtys cirrosa"), 
         count = c(4, 6),
         n = 8
     )
     

benthos documentation built on Aug. 8, 2025, 6:08 p.m.