Metagenome comparisons

Angular similarity (using abundance information)

These plots are the output of sourmash compare (link) and sourmash plot (link).

The comparison metric displayed here is 1 - the angular distance. Metagenome pairs with similar abundance-weighted nucleotide content will cluster together.

k=21

k=31

k=51

Jaccard similarity (flat - no abundance used)

These plots are the output of sourmash compare --ignore-abundance (link) and sourmash plot (link).

The comparison metric displayed here is the Jaccard index or Jaccard similarity. Metagenome pairs with similar (unweighted) nucleotide content will cluster together. These comparisons use presence/absence of genomiccontent; unlike the angular similarity plots above, increased or decreased abundance of genomic content does not change the relationships.