iNEXT (version 2.0.3)

ChaoSpecies: Estimation of species richness

Description

ChaoSpecies Estimation of species richness via Chao (1984, 1987)

Usage

ChaoSpecies(x, datatype = "abundance", conf = 0.95)

Arguments

x

a vector of species frequence

datatype

the data type of input data. That is individual-based abundance data (datatype = "abundance") or sample-based incidence data (datatype = "incidence").

conf

a positive number $\le$ 1. "conf" specifies the confidence level for confidence interval. The default is 0.95.

Value

• a vector of species richness estimator and its confidence interval

See Also

ChaoEntropy

Examples

data(spider)
ChaoSpecies(spider$Girdled, datatype="abundance")