otutab_merge command
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11-Aug-2018 New paper describes octave plots for visualizing alpha diversity.

12-Jun-2018 New paper shows that one in five taxonomy annotations in SILVA and Greengenes are wrong.

18-Apr-2018 New paper shows that taxonomy prediction accuracy is <50% for V4 sequences.

05-Oct-2017 PeerJ paper shows low accuracy of closed- and open-ref. QIIME OTUs.

22-Sep-2017 New paper shows 97% threshold is wrong, OTUs should be 99% full-length 16S, 100% for V4.

UPARSE tutorial video posted on YouTube. Make OTUs from MiSeq reads.



otutab_merge command

See also
  OTU table
  OTU commands
  Making an OTU table (otutab command)

Merge two or more OTU tables by matching sample identifiers and / or OTU identifiers. The input file must be in QIIME classic format.

The input files are specified as a comma-separated list immediately following -otutab_merge. Spaces are not allowed in file names.

The output file is specified by the -output option. The output file is also in QIIME classic format.


usearch -otutab_merge otutable1.txt,otutable2.txt,otutable3.txt -output otutable_merged.txt