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Table 2 Classification statistics with clade exclusion for Kraken on the simBA-5 metagenome

From: Kraken: ultrafast metagenomic sequence classification using exact alignments

Measured rank

Excluded rank

Species

Genus

Family

Order

Class

Phylum

Kingdom

100/24.4/24.4

100/7.9/7.9

100/2.8/2.8

100/2.3/2.3

100/1.5/1.5

100/1.1/1.1

Phylum

99.9/23.9/24.5

99.6/7.2/7.9

98.7/2.5/2.8

98.0/1.6/2.4

96.8/1.2/1.7

–

Class

99.7/24.7/25.3

99.1/7.1/7.9

96.7/2.0/3.0

93.2/1.0/2.3

–

–

Order

99.7/24.1/25.3

98.9/6.8/8.5

96.4/2.0/3.4

–

–

–

Family

99.7/25.4/26.7

98.5/8.5/10.8

–

–

–

–

Genus

99.2/26.3/33.2

–

–

–

–

–

  1. For each measured rank, Kraken’s rank-level precision, sensitivity and classification percentage are shown. Classification percentage is defined here as the percentage of reads with taxonomic entries at both the measured and excluded ranks that were classified by Kraken with the clade of origin excluded.