Fig. 4: Comparison of number of rare, undetermined (if applicable) and abundant ASVs from ASVs, OTUs, and mOTUs.
From: Definition of the microbial rare biosphere through unsupervised machine learning
Abundance classifications were estimated with different methods: one single relative abundance threshold (0.1%, per sample), two relative abundance thresholds (0.1% and 1%, per sample) and ulrb using default parameters (k = 3). The number of ASVs was illustrated with boxplots and points for each sample (n = 6 samples). The outliers were marked with red cross.
