Skip to contents

Abundance-based Coverage Estimator

Usage

index_ace(x, ...)

# S4 method for numeric
index_ace(x, k = 10, na.rm = FALSE, ...)

Arguments

x

A numeric vector of count data (absolute frequencies).

...

Currently not used.

k

A length-one numeric vector giving the threshold between rare/infrequent and abundant/frequent species.

na.rm

A numeric scalar: should missing values (including NaN) be removed?

Value

A numeric vector.

References

Chao, A. & Lee, S.-M. (1992). Estimating the Number of Classes via Sample Coverage. Journal of the American Statistical Association, 87(417), 210-217. doi:10.1080/01621459.1992.10475194 .

Author

N. Frerebeau