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# Canberra

From mothur

<math>D_{Canberra} = \frac {1}{S_{T}} \sum_{j=1}^{S_T} \frac {|S_{Aj} - S_{Bj}|} {S_{Aj} + S_{Bj} } </math>

- <math>S_{Aj}</math> is the abundance of the jth OTU in sample A
- <math>S_{Bj}</math> is the abundance of the jth OTU in sample B
- <math>S_{T}</math> is the number of OTU's combined between sample A and sample B