Metacoder: An R package for visualization and manipulation of community taxonomic diversity data
Fig 5
Scale-independent appearance facilitates complex, composite figures.
This graph uses 16S metabarcoding data from the human microbiome project study to show pairwise comparisons of microbiome communities in different parts of the human body. All graph components, including text, have the same relative sizes independent of output size, unlike most graphical packages in R, making it easier to create composite figures entirely within R. The gray tree on the lower left functions as a key for the smaller unlabeled trees. The color of each taxon represents the log-2 ratio of median proportions of reads observed at each body site. Only significant differences are colored, determined using a Wilcox rank-sum test followed by a Benjamini-Hochberg (FDR) correction for multiple comparisons. Taxa colored green are enriched in the part of the body shown in the row and those colored brown are enriched in the part of the body shown in the column. For example, Haemophilus, Streptococcus, Prevotella are enriched in saliva (brown) relative to stool where Bacteroides is enriched (green).