NAME
FAST::Bio::SeqIO::largefasta - method i/o on very large fasta sequence files
SYNOPSIS
Do not use this module directly. Use it via the FAST::Bio::SeqIO class.
DESCRIPTION
This object can transform FAST::Bio::Seq objects to and from fasta flat file databases.
This module handles very large sequence files by using the FAST::Bio::Seq::LargePrimarySeq module to store all the sequence data in a file. This can be a problem if you have limited disk space on your computer because this will effectively cause 2 copies of the sequence file to reside on disk for the life of the FAST::Bio::Seq::LargePrimarySeq object. The default location for this is specified by the File::Spec->tmpdir routine which is usually /tmp on UNIX. If a sequence file is larger than the swap space (capacity of the /tmp dir) this could cause problems for the machine. It is possible to set the directory where the temporary file is located by adding the following line to your code BEFORE calling next_seq. See FAST::Bio::Seq::LargePrimarySeq for more information.
$FAST::Bio::Seq::LargePrimarySeq::DEFAULT_TEMP_DIR = 'newdir';
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:
https://redmine.open-bio.org/projects/bioperl/
AUTHORS - Jason Stajich
Email: jason@bioperl.org
APPENDIX
The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _
next_seq
Title : next_seq
Usage : $seq = $stream->next_seq()
Function: returns the next sequence in the stream
Returns : A FAST::Bio::Seq::LargePrimarySeq object
Args : NONE
write_seq
Title : write_seq
Usage : $stream->write_seq(@seq)
Function: writes the $seq object into the stream
Returns : 1 for success and 0 for error
Args : FAST::Bio::Seq object