skbio.diversity.alpha.
brillouin_d
(counts)[source]¶Calculate Brillouin index of alpha diversity.
State: Experimental as of 0.4.0.
This is calculated as follows:
where \(N\) is defined as the total number of individuals in the sample, \(s\) is the number of OTUs, and \(n_i\) is defined as the number of individuals in the \(i^{\text{th}}\) OTU.
Parameters: | counts (1-D array_like, int) – Vector of counts. |
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Returns: | Brillouin index. |
Return type: | double |
Notes
The implementation here is based on the description given in the SDR-IV online manual [1].
References
[1] | http://www.pisces-conservation.com/sdrhelp/index.html |