Fig. 2: Schematic representation of the information that the Silhouette scores can provide.
From: Definition of the microbial rare biosphere through unsupervised machine learning
a Visual representation of taxa grouped in three different clusters, each taxon with a Silhouette score. b The average Silhouette scores of all taxa within a cluster can be calculated to deliver a single quality score regarding that specific cluster, or the Silhouette scores of the taxa from all clusters can also be calculated, to obtain a single average Silhouette score for the entire sample. The values shown are arbitrary, for the purpose of illustrating the possible ways of grouping the data.
