Structkulczynski
\[D_{Structkulczynski} = 1 - \frac{1}{2} \left ( \frac{\sum_{j=1}^{m} \min (S_{Aj}, S_{Bj})}{\sum_{j=1}^{m} S_{Aj}} + \frac{\sum_{j=1}^{m} \min (S_{Aj}, S_{Bj})}{\sum_{j=1}^{m} S_{Bj}} \right )\]- where \(S_{Aj}\) is the abundance of sample a in the jth OTU.
- where \(S_{Bj}\) is the abundance of sample b in the jth OTU.