| Bio::ClusterIO(3pm) | User Contributed Perl Documentation | Bio::ClusterIO(3pm) |
Bio::ClusterIO - Handler for Cluster Formats
#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.
The ClusterIO module works with the ClusterIO format module to read various cluster formats such as NCBI UniGene.
$str = Bio::ClusterIO->new(-file => 'filename',
-format=>$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:
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
See below for more detailed summaries. The main methods are:
Fetch the next cluster from the stream.
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.
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
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.
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:
https://github.com/bioperl/bioperl-live/issues
Email andrew@anatomy.otago.ac.nz
The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _
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
Title : format Usage : $format = $stream->format() Function: Get the cluster format Returns : cluster format Args : none
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
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)
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)
Title : _load_format_module Usage : *INTERNAL ClusterIO stuff* Function: Loads up (like use) a module at run time on demand Example : Returns : Args :
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
| 2022-03-27 | perl v5.34.0 |