skbio.diversity.alpha.
mcintosh_e
(counts)[source]¶Calculate McIntosh’s evenness measure E.
State: Experimental as of 0.4.0.
McIntosh evenness measure E is defined as:
where \(n_i\) is the number of individuals in the \(i^{\text{th}}\) OTU, \(N\) is the total number of individuals, and \(S\) is the number of OTUs in the sample.
counts (1-D array_like, int) – Vector of counts.
McIntosh evenness measure E.
double
See also
Notes
The implementation here is based on the description given in 1, NOT the one in the SDR-IV online manual, which is wrong.
References
Heip & Engels (1974) Comparing Species Diversity and Evenness Indices. p 560.