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Structchi2

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<math>D_{Structchi2} = \sqrt{N_T \sum_{j=1}^{S_T} \left ( \frac {1}{S_{+j}} \left ( \frac{S_{Aj}}{S_{A+}} - \frac{S_{Bj}}{S_{B+}} \right )^2 \right ) } </math>


  • where <math>N_T</math> is the total number of sequences
  • where <math>S_{A+}</math> denotes the total abundance of sample A
  • where <math>S_{B+}</math> denotes the total abundance of sample B
  • where <math>S_{Aj}</math> is the abundance of sample A in the jth OTU.
  • where <math>S_{Bj}</math> is the abundance of sample B in the jth OTU.
  • where <math>S_{+j}</math> denotes the total abundance of OTU j.