VSearch sorting

What it does

Fasta entries are sorted by decreasing abundance (−−sortbysize) or sequence length (−−sort- bylength). To obtain a stable sorting order, ties are sorted by decreasing abundance and label increasing alpha-numerical order (−−sortbylength), or just by label increasing alpha-numerical order (−−sortbysize). Label sorting assumes that all sequences have unique labels. The same applies to the automatic sorting performed during chimera checking (−−uchime_denovo), derepli- cation (−−derep_fulllength), and clustering (−−cluster_fast and −−cluster_size).

Sorting options

--maxsize INT	maximum abundance for sortbysize
--minsize INT	minimum abundance for sortbysize
--output FILENAME
	output FASTA file
--relabel STRING
	relabel with this prefix string after sorting
--sizeout	add abundance annotation to output
--sortbylength FILENAME
	sort sequences by length in given FASTA file
--sortbysize FILENAME
	abundance sort sequences in given FASTA file
--topn INT	output just top n seqs after sorting

For details about this tool, please refer to the github account or the vsearch manual.