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Fig. 2 | BMC Bioinformatics

Fig. 2

From: To denoise or to cluster, that is not the question: optimizing pipelines for COI metabarcoding and metaphylogeography

Fig. 2

Values of the Entropy ratio (Er) of the set of ESVs obtained with the UNOISE3 algorithm at decreasing values of α (a), and of those obtained with the DADA2 algorithm at decreasing values of omega_A (b). Arrows point at the selected value for each parameter. Horizontal blue line in (b) represents the Er value reached in (a) at α = 5, horizontal red line marks the number of ESVs detected in (a) at α = 5

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