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OTU accuracy methods
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OTU accuracy results
  Data, commands and scripts
  OTU classification
  Detectable species

I used two mock communities (Even and Staggered) of one set of 21 microbial strains created by Haas et al., who created a reference database of 16S sequences in the strains. Reads for these communities were obtained from HMP validation data (454 Titanium) and from a recent paper by Bokulich et al., 2013 (Illumina MiSeq).