skbio.diversity.alpha.menhinick

skbio.diversity.alpha.menhinick(counts)

Calculate Menhinick’s richness index.

Menhinick’s richness index is defined as:

\[D_{Mn} = \frac{S}{\sqrt{N}}\]

where \(S\) is the number of taxa and \(N\) is the total number of individuals in the sample.

Menhinick’s richness index assumes square-root accumulation.

Parameters:

counts1-D array_like, int

Vector of counts.

Returns:

float

Menhinick’s richness index.

See also

margalef

Notes

Based on the description in [1].

References

[1]

Magurran, A E 2004. Measuring biological diversity. Blackwell. pp. 76-77.