Principle of the method for sorting OTUs of a sample into composed and single ones. Example of a smoothed version of the histogram of θ values (ratio between the number of missing edges in Gotu over the total number of possible edges in the OTU): θc is the first local minimum after the first mode, OTUs with θ < θc are single, and OTUs with θ > θc are composed.

 
 
  Part of: Cros M-J, Frigerio J-M, Peyrard N, Franc A (2024) Simple approaches for evaluation of OTU quality based on dissimilarity arrays. Metabarcoding and Metagenomics 8: e108649. https://doi.org/10.3897/mbmg.8.108649