Dirichlet Multinomial Mixtures: Generative Models for Microbial Metagenomics
Figure 3
Heat map of the Twins data and hierarchical clustering.
Heat map showing the Twins data with samples grouped according to the cluster most likely to have generated them. Only 30 out of 131 genera are shown, those with the greatest variability across clusters, see Table 1. To the right of each cluster the mean of the Dirichlet component for that mixture is shown. The data is square root transformed and therefore to convert the scale to relative abundance, values must be squared.