chao.sd {fossil}R Documentation

Chao's estimation of standard error

Description

Computes the standard error for chao1 or chao2

Usage

chao.sd(x)

Arguments

x a vector of abundances or frequencies of occurrences

Details

primarily designed to be used internally by spp.est to calculate the errors for the chao estimators

Value

returns a value for standard deviation for chao1 or chao2

Author(s)

Matthew Vavrek

See Also

chao1, spp.est

Examples

##add examples

[Package fossil version 0.2.0 Index]