NAME
Bio::FastParsers::CdHit - Front-end class for CD-HIT parser
VERSION
version 0.221230
SYNOPSIS
use aliased 'Bio::FastParsers::CdHit';
# open and parse CD-HIT report (cluster file)
my $infile = 'test/cdHit.out.clstr';
my $report = CdHit->new( file => $infile );
# loop through representatives to get members
for my $repr ( $report->all_representatives ) {
my $members = $report->members_for($repr);
# ...
}
# get representatives ordered by descending cluster size
my @reprs = $report->all_representatives_by_cluster_size;
# create IdMapper
# Note: this requires Bio::MUST::Core
my $mapper = $report->clust_mapper(':');
my @long_ids = $mapper->all_long_ids;
# ...DESCRIPTION
This module implements a parser for the output file of the CD-HIT program. It provides methods for getting the ids of the representative sequences (either sorted by descending cluster size or not) and for obtaining the members of any cluster from the id of its representative.
It also has a method for facilitating the re-mapping of all the ids of every cluster on a phylogenetic tree through a Bio::MUST::Core::IdMapper object.
ATTRIBUTES
file
Path to CD-HIT report file to be parsed
METHODS
all_representatives
Returns all the ids of the representative sequences of the clusters (not an array reference).
# $report is a Bio::FastParsers::CdHit
for my $repr ( $report->all_representatives ) {
# process $repr
# ...
}This method does not accept any arguments.
all_representatives_by_cluster_size
Returns all the ids of the representative sequences of the clusters (not an array reference) sorted by descending cluster size (and then lexically by id).
# $report is a Bio::FastParsers::CdHit
for my $repr ( $report->all_representatives_by_cluster_size ) {
# process $repr
# ...
}This method does not accept any arguments.
members_for
Returns all the ids of the member sequences of the cluster corresponding to the id of the specified representative (as an array refrence).
# $report is a Bio::FastParsers::CdHit
for my $repr ( $report->all_representatives ) {
my $members = $report->members_for($repr);
# process $members ArrayRef
# ...
}This method requires one argument: the id of the representative.
clust_mapper
Returns a Bio::MUST::Core::IdMapper object associating representative sequence ids to stringified full lists of their member sequence ids (including the representatives themselves).
This method needs Bio::MUST::Core to be installed on the computer.
# $report is a Bio::FastParsers::CdHit
my $mapper = $report->clust_mapper(':');The native methods from Bio::MUST::Core::IdMapper can be applied on $mapper, e.g., all_long_ids or long_id_for.
This method accepts an optional argument: the id separator (default: /).
AUTHOR
Denis BAURAIN <denis.baurain@uliege.be>
CONTRIBUTOR
Amandine BERTRAND <amandine.bertrand@doct.uliege.be>
COPYRIGHT AND LICENSE
This software is copyright (c) 2013 by University of Liege / Unit of Eukaryotic Phylogenomics / Denis BAURAIN.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.