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Margalef Richness Index

Source: R/AllGenerics.R, R/diversity_alpha.R
index_margalef.Rd

Margalef Richness Index

Usage

index_margalef(x, ...)

# S4 method for class 'numeric'
index_margalef(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

Margalef, R. (1958). Information Theory in Ecology. General Systems, 3, 36-71.

See also

Other alpha diversity measures: index_ace(), index_baxter(), index_berger(), index_boone(), index_brillouin(), index_chao1(), index_chao2(), index_hurlbert(), index_ice(), index_mcintosh(), index_menhinick(), index_shannon(), index_simpson(), index_squares()

Author

N. Frerebeau