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Menhinick Richness Index

Usage

index_menhinick(x, ...)

# S4 method for numeric
index_menhinick(x, na.rm = FALSE, ...)

Arguments

x

A numeric vector of count data (absolute frequencies).

...

Currently not used.

na.rm

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

Value

A numeric vector.

References

Menhinick, E. F. (1964). A Comparison of Some Species-Individuals Diversity Indices Applied to Samples of Field Insects. Ecology, 45(4), 859-861. doi:10.2307/1934933 .

Author

N. Frerebeau