Fig. 2

Classification rate of reads, shown at various taxonomic levels for six reference databases. Classification rate refers to whether the reads were classified or unclassified, and are shown as a percentage at the A Phylum, B Family, C Genus and D Species levels. The y-axis shows the percentage of reads from the simulated dataset that were classified or unclassified when classified using Kraken2. The six reference databases used during classification are shown as bars plotted along the x-axis