Bio::ClusterIO(3) User Contributed Perl Documentation Bio::ClusterIO(3)NAMEBio::ClusterIO - Handler for Cluster Formats
SYNOPSIS
#NB: This example is unigene specific
use Bio::ClusterIO;
$stream = Bio::ClusterIO->new('-file' => "Hs.data",
'-format' => "unigene");
# note: we quote -format to keep older perl's from complaining.
while ( my $in = $stream->next_cluster() ) {
print $in->unigene_id() . "\n";
while ( my $sequence = $in->next_seq() ) {
print $sequence->accession_number() . "\n";
}
}
# Parsing errors are printed to STDERR.
DESCRIPTION
The ClusterIO module works with the ClusterIO format module to read
various cluster formats such as NCBI UniGene.
CONSTRUCTORS
Bio::ClusterIO->new()
$str = Bio::ClusterIO->new(-file => 'filename',
-format=>$format);
The new() class method constructs a new Bio::ClusterIO object. The
returned object can be used to retrieve or print cluster objects. new()
accepts the following parameters:
-file
A file path to be opened for reading.
-format
Specify the format of the file. Supported formats include:
unigene *.data UniGene build files.
dbsnp *.xml dbSNP XML files
If no format is specified and a filename is given, then the module
will attempt to deduce it from the filename. If this is
unsuccessful, the main UniGene build format is assumed.
The format name is case insensitive. 'UNIGENE', 'UniGene' and
'unigene' are all supported, as are dbSNP, dbsnp, and DBSNP
OBJECT METHODS
See below for more detailed summaries. The main methods are:
$cluster = $str->next_cluster()
Fetch the next cluster from the stream.
TIEHANDLE(), READLINE(), PRINT()
These I've left in here because they were in the SeqIO module. Feedback
appreciated. There they provide the tie interface. See perltie for
more details.
FEEDBACK
Mailing Lists
User feedback is an integral part of the evolution of this and other
Bioperl modules. Send your comments and suggestions preferably
to one of the Bioperl mailing lists. Your participation is much
appreciated.
bioperl-l@bioperl.org - General discussion
http://bioperl.org/wiki/Mailing_lists - About the mailing lists
Support
Please direct usage questions or support issues to the mailing list:
bioperl-l@bioperl.org
rather than to the module maintainer directly. Many experienced and
reponsive experts will be able look at the problem and quickly address
it. Please include a thorough description of the problem with code and
data examples if at all possible.
Reporting Bugs
Report bugs to the Bioperl bug tracking system to help us keep track
the bugs and their resolution. Bug reports can be submitted via the
web:
http://bugzilla.open-bio.org/
AUTHOR - Andrew Macgregor
Email andrew@anatomy.otago.ac.nz
APPENDIX
The rest of the documentation details each of the object methods.
Internal methods are usually preceded with a _
new
Title : new
Usage : Bio::ClusterIO->new(-file => $filename, -format => 'format')
Function: Returns a new cluster stream
Returns : A Bio::ClusterIO::Handler initialised with the appropriate format
Args : -file => $filename
-format => format
next_cluster
Title : next_cluster
Usage : $cluster = $stream->next_cluster()
Function: Reads the next cluster object from the stream and returns it.
Returns : a L<Bio::ClusterI> compliant object
Args : none
cluster_factory
Title : cluster_factory
Usage : $obj->cluster_factory($newval)
Function: Get/set the object factory to use for creating the cluster
objects.
Example :
Returns : a L<Bio::Factory::ObjectFactoryI> compliant object
Args : on set, new value (a L<Bio::Factory::ObjectFactoryI>
compliant object or undef, optional)
object_factory
Title : object_factory
Usage : $obj->object_factory($newval)
Function: This is an alias to cluster_factory with a more generic name.
Example :
Returns : a L<Bio::Factory::ObjectFactoryI> compliant object
Args : on set, new value (a L<Bio::Factory::ObjectFactoryI>
compliant object or undef, optional)
_load_format_module
Title : _load_format_module
Usage : *INTERNAL ClusterIO stuff*
Function: Loads up (like use) a module at run time on demand
Example :
Returns :
Args :
_guess_format
Title : _guess_format
Usage : $obj->_guess_format($filename)
Function: guess format based on file suffix
Example :
Returns : guessed format of filename (lower case)
Args :
Notes : formats that _filehandle() will guess include unigene and dbsnp
perl v5.14.1 2011-07-22 Bio::ClusterIO(3)
