Structeuclidean

\[D_{Structeuclidean} = \sqrt{ \sum_{j=1}^{S_T} \left ( S_{Aj} - S_{Bj} \right )^2 }\]

• 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.