Odum

\[D_{Odum} = \frac {\sum_{j=1}^{S_T} |S_{Aj} - S_{Bj}| }{\sum_{j=1}^{S_T} (S_{Aj} + S_{Bj} )}\]

where,

• \(S_{Aj}\) is the jth OTU in sample A
• \(S_{Bj}\) is the jth OTU in sample B