skbio.diversity.alpha.enspie¶
- skbio.diversity.alpha.enspie(counts)[source]¶
Calculate ENS_pie alpha diversity measure.
State: Experimental as of 0.4.0.
ENS_pie is equivalent to
1 / dominance
:\[ENS_{pie} = \frac{1}{\sum_{i=1}^s{p_i^2}}\]where \(s\) is the number of OTUs and \(p_i\) is the proportion of the community represented by OTU \(i\).
- Parameters:
counts (1-D array_like, int) – Vector of counts.
- Returns:
ENS_pie alpha diversity measure.
- Return type:
double
See also
Notes
ENS_pie is defined in [1].
References