NAME

       dedupe.sh - Simplifies assemblies by removing duplicate or contained

SYNOPSIS

       dedupe.sh in=<file or stdin> out=<file or stdout>

DESCRIPTION

       Accepts  one  or  more  files  containing  sets  of  sequences  (reads  or scaffolds).  Removes duplicate
       sequences, which may be specified to be exact matches, subsequences, or  sequences  within  some  percent
       identity.    Can   also   find   overlapping  sequences  and  group  them  into  clusters.   Please  read
       bbmap/docs/guides/DedupeGuide.txt for more information.

EXAMPLES

       An example of running Dedupe for clustering short reads:

              dedupe.sh in=x.fq am=f  ac=f  fo  c  pc  rnc=f  mcs=4  mo=100  s=1  pto  cc  qin=33  csf=stats.txt
              pattern=cluster_%.fq dot=graph.dot

       Input may be fasta or fastq, compressed or uncompressed.  Output may be stdout or a file.  With no output
       parameter, data will be written to stdout.  If 'out=null', there will be no output, but  statistics  will
       still be printed.  You can also use 'dedupe <infile> <outfile>' without the 'in=' and 'out='.

OPTIONS

   I/O parameters
       in=<file,file>
              A single file or a comma-delimited list of files.

       out=<file>
              Destination for all output contigs.

       pattern=<file>
              Clusters  will  be written to individual files, where the '%' symbol in the pattern is replaced by
              cluster number.

       outd=<file>
              Optional; removed duplicates will go here.

       csf=<file>
              (clusterstatsfile) Write a list of cluster names and sizes.

       dot=<file>
              (graph) Write a graph in dot format.  Requires 'fo' and 'pc' flags.

       threads=auto
              (t) Set number of threads to use; default is number of logical processors.

       overwrite=t
              (ow) Set to false to force the program to abort rather than overwrite an existing file.

       showspeed=t
              (ss) Set to 'f' to suppress display of processing speed.

       minscaf=0
              (ms) Ignore contigs/scaffolds shorter than this.

       interleaved=auto
              If true, forces fastq input to be paired and interleaved.

       ziplevel=2
              Set to 1 (lowest) through 9 (max) to change compression level; lower compression is faster.

   Output format parameters
       storename=t
              (sn) Store scaffold names (set false to save memory).

       #addpairnum=f
              Add .1 and .2 to numeric id of read1 and read2.

       storequality=t
              (sq) Store quality values for fastq assemblies (set false to save memory).

       uniquenames=t
              (un) Ensure all output scaffolds have unique names.  Uses more memory.

       numbergraphnodes=t
              (ngn) Label dot graph nodes with read numbers rather than read names.

       sort=f Sort output (otherwise it will be random).  Options:

              length: Sort by length

              quality: Sort by quality

              name:    Sort by name

              id:      Sort by input order

       ascending=f
              Sort in ascending order.

       ordered=f
              Output sequences in input order.  Equivalent to sort=id ascending.

       renameclusters=f
              (rnc) Rename contigs to indicate which cluster they are in.

       printlengthinedges=f
              (ple) Print the length of contigs in edges.

   Processing parameters
       absorbrc=t
              (arc) Absorb reverse-complements as well as normal orientation.

       absorbmatch=t
              (am) Absorb exact matches of contigs.

       absorbcontainment=t
              (ac) Absorb full containments of contigs.

       #absorboverlap=f
              (ao) Absorb (merge) non-contained overlaps of contigs (TODO).

       findoverlap=f
              (fo) Find overlaps between contigs (containments and non-containments).  Necessary for clustering.

       uniqueonly=f
              (uo) If true, all copies of duplicate reads will be discarded, rather than keeping 1.

       rmn=f  (requirematchingnames) If true, both names and sequence must match.

       usejni=f
              (jni) Do alignments in C code, which is faster, if an edit distance is allowed.  This will require
              compiling the C code; details are in /jni/README.txt.

   Subset parameters
       subsetcount=1
              (sstc) Number of subsets used to process the data; higher uses less memory.

       subset=0
              (sst) Only process reads whose ((ID%subsetcount)==subset).

   Clustering parameters
       cluster=f
              (c) Group overlapping contigs into clusters.

       pto=f  (preventtransitiveoverlaps) Do not look for new edges between nodes in the same cluster.

       minclustersize=1
              (mcs) Do not output clusters smaller than this.

       pbr=f  (pickbestrepresentative) Only output the single highest-quality read per cluster.

   Cluster postprocessing parameters
       processclusters=f
              (pc)  Run  the  cluster processing phase, which performs the selected operations in this category.
              For example, pc AND cc must be enabled to perform cc.

       fixmultijoins=t
              (fmj) Remove redundant overlaps between the same two contigs.

       removecycles=t
              (rc) Remove all cycles so clusters form trees.

       cc=t   (canonicizeclusters) Flip contigs so clusters have a single orientation.

       fcc=f  (fixcanoncontradictions) Truncate graph at nodes with canonization disputes.

       foc=f  (fixoffsetcontradictions) Truncate graph at nodes with offset disputes.

       mst=f  (maxspanningtree) Remove cyclic edges, leaving only the longest edges that form a tree.

   Overlap Detection Parameters
       exact=t
              (ex) Only allow exact symbol matches.  When false, an 'N' will match any symbol.

       touppercase=t
              (tuc) Convert input bases to upper-case; otherwise, lower-case will not match.

       maxsubs=0
              (s) Allow up to this many mismatches (substitutions only, no indels).   May  be  set  higher  than
              maxedits.

       maxedits=0
              (e) Allow up to this many edits (subs or indels).  Higher is slower.

       minidentity=100
              (mid) Absorb contained sequences with percent identity of at least this (includes indels).

       minlengthpercent=0
              (mlp) Smaller contig must be at least this percent of larger contig's length to be absorbed.

       minoverlappercent=0
              (mop) Overlap must be at least this percent of smaller contig's length to cluster and merge.

       minoverlap=200
              (mo) Overlap must be at least this long to cluster and merge.

       depthratio=0
              (dr) When non-zero, overlaps will only be formed between reads with a depth ratio of at most this.
              Should be above 1.  Depth is determined by parsing the read names; this information can  be  added
              by running KmerNormalize (khist.sh, bbnorm.sh, or ecc.sh) with the flag 'rename'

       k=31   Seed  length  used  for  finding  containments  and overlaps.  Anything shorter than k will not be
              found.

       numaffixmaps=1
              (nam) Number of prefixes/suffixes to index per contig. Higher is  more  sensitive,  if  edits  are
              allowed.

       hashns=f
              Set to true to search for matches using kmers containing Ns.  Can lead to extreme slowdown in some
              cases.

       #ignoreaffix1=f
              (ia1) Ignore first affix (for testing).

       #storesuffix=f
              (ss) Store suffix as well as prefix.  Automatically set to true when doing inexact matches.

   Other Parameters
       qtrim=f
              Set to qtrim=rl to trim leading and trailing Ns.

       trimq=6
              Quality trim level.

       forcetrimleft=-1
              (ftl) If positive, trim bases to the left of this position (exclusive, 0-based).

       forcetrimright=-1
              (ftr) If positive, trim bases to the right of this position (exclusive, 0-based).

   Note on Proteins / Amino Acids
       Dedupe supports amino acid space via the 'amino' flag.  This also changes the default kmer length to  10.
       In  amino  acid  mode,  all flags related to canonicity and reverse-complementation are disabled, and nam
       (numaffixmaps) is currently limited to 2 per tip.

   Java Parameters
       -Xmx   This will set Java's memory usage, overriding autodetection.

              -Xmx20g will specify 20 gigs of RAM, and -Xmx200m will specify 200 megs.  The max is typically 85%
              of physical memory.

       -eoom  This  flag  will  cause  the  process to exit if an out-of-memory exception occurs.  Requires Java
              8u92+.

       -da    Disable assertions.

AUTHOR

       Written by Brian Bushnell and Jonathan Rood (Last modified November 20, 2017)

       Please contact Brian Bushnell at bbushnell@lbl.gov if you encounter any problems.

       This manpage was written by Andreas Tille for the Debian distribution and can be used for any other usage
       of the program.