/ 
bioperl-1.5.2_004-RCf
/ Bio::Matrix::PSM::PsmHeaderI

NAME

Bio::Matrix::PSM::PsmHeaderI

SYNOPSIS

use Bio::Matrix::PSM::IO;
#Obtain an Bio::Matrix::PSM::IO object:
my $psmIO= new Bio::Matrix::PSM::IO(-file=>$file, -format=>'mast');

#Get some general data about the file you are parsing:
my $release=$psmIO->release;
my $version=$psmIO->version;

print "This analysis was performed using MAST version $version, release $release\n";

#Now let's see what are the consensus sequences of the motifs fed as an input:
my %seq=$psmIO->seq;

#let's cycle through all consensus sequences now:

foreach my $id ($psmIO->hid) {
  print "Motif $id is \t",$seq{$id},"\n";
}

 #Finally look at the stuff we do not parse:
 my @inputfile=grep(/datafile/i,$psmIO->unstructured);

DESCRIPTION

Generally you should not use this object directly, you can access the information through a PSM driver (See Bio::Matrix::PSM::IO). It is handling the header data from a PSM file which may be very different. This means that some of the methods will return undef naturally, because this information is not present in the file which is parsed. Some important data might be left over in the unstructured part, and you might have to parse it yourself. I will try to 'structure' this header more in the near future.

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

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 - Stefan Kirov

Email skirov@utk.edu

APPENDIX

new

Title   : new
Usage   : my $header= new Bio::Matrix::PSM::PsmHeader
           ( -seq=>\%seq, -mid=>\%mid, -width=>\%width,
             -instances=>\%instances, -header=>\@header, -type=>'mast');
Function: Creates a new Bio::Matrix::PSM::PsmHeader object
Throws  :
Example :
Returns :  Bio::Matrix::PSM::PsmHeaderI object
Args    :  hash

seq

Title   : seq
Usage   : my %seq= $header->seq();
Function: Returns the sequence data as a hash, indexed by a 
          sequence ID (motif id or accession number)
          In case the input data is a motif it would return the 
          consenus seq for each of them (mast).
Throws  :
Example :
Returns :  hash
Args    :

hid

Title   : hid
Usage   : my @ids= $header->hid();
Function: Returns array with the motif/instance ids
Throws  :
Example :
Returns :  array
Args    :

length

Title   : length
Usage   : my %length= $header->length();
Function: Returns the length of the input sequence or motifs as a hash, indexed
          by a sequence ID (motif id or accession number)
Throws  :
Example :
Returns :  hash
Args    :

instances

Title   : instances
Usage   : my %instances= $header->length();
Function: Returns the instance, used  as a hash, indexed
          by a sequence ID (motif id or accession number)
Throws  :
Example :
Returns :  hash of Bio::Matrix::PSM::InstanceSite objects
Args    :

weights

Title   : weights
Usage   : my %weights= $header->weights();
Function: Returns the weights of the input sequence as a hash, indexed
          by a sequence ID
Throws  :
Example :
Returns :  hash
Args    :

unstuctured

Title   : unstuctured
Usage   : my @unstructured= $header->unstuctured();
Function: Returns the unstructured data in the header as an array, one line per
          array element, all control symbols are removed with \W
Throws  :
Example :
Returns :   array
Args    :

version

Title   : version
Usage   : my $version= $header->version;
Function: Returns the version of the file being parsed if such exists
Throws  :
Example :
Returns :  string
Args    :

revision

Title   : revision
Usage   : my $revision= $header->revision;
Function: Returns the revision of the file being parsed if such exists
Throws  :
Example :
Returns :  string
Args    :

_check

Title   : _check
Usage   : if ($self->_check('weights') { #do something} else {return 0;}
Function: Checks if the method called is aplicable to the file format
Throws  :
Example :
Returns :  boolean
Args    :  string