Christopher Fields > BioPerl-1.6.923 > Bio::Matrix::PSM::IO::meme

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Source   Latest Release: BioPerl-1.6.924

NAME ^

Bio::Matrix::PSM::IO::meme - PSM meme parser implementation

SYNOPSIS ^

See Bio::Matrix::PSM::IO for detailed documentation on how to use PSM parsers

DESCRIPTION ^

Parser for meme.

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/

AUTHOR - Stefan Kirov ^

Email skirov@utk.edu

APPENDIX ^

new

 Title   : new
 Usage   : my $psmIO =  Bio::Matrix::PSM::IO->new(-format=>'meme', 
                                                 -file=>$file);
 Function: Associates a file with the appropriate parser
 Throws  : Throws if the file passed is in HTML format or 
           if the MEME header cannot be found.
 Example :
 Args    : hash
 Returns : "Bio::Matrix::PSM::$format"->new(@args);

_parse_coordinates

 Title   : _parse_coordinates
 Usage   :
 Function:
 Throws  :
 Example : Internal stuff
 Returns :
 Args    :

header

 Title   : header
 Usage   :  my %header=$psmIO->header;
 Function:  Returns the header for the MEME file
 Throws  :
 Example : Fetching all the sequences included in the MEME analysis, 
           being parsed
           my %header=$psmIO->header;
            foreach my $seqid (@{$header{instances}}) {
               my $seq=$db->get_Seq_by_acc($id);
               #Do something with the sequence
            }
            where $db might be Bio::DB:GenBank object, see
 Returns : Hash with three keys: instances, weights and lengths, which
           should be self-explenatory. Each value is an array
           reference. Each array element corresponds to the same
           element in the other two arrays. So $header{instances}->[$i]
           will refer to the same sequence in the motif file as
           $header{weights}->[$i] and $header{lengths}->[$i]
 Args    :  none
 Notes   :  OBSOLETE!

next_psm

 Title   : next_psm
 Usage   : my $psm=$psmIO->next_psm();
 Function: Reads the next PSM from the input file, associated with this object
 Throws  : Throws if the format is inconsistent with the rules for MEME 3.0.4:
            no SUMMARY Section present or some keywords are missing/altered.
 Example :
 Returns : Bio::Matrix::PSM::Psm object
 Args    : none

_parseMatrix

 Title   : _parseMatrix
 Usage   :
 Function: Parses the next site matrix information in the meme file
 Throws  :
 Example :  Internal stuff
 Returns :  hash as for constructing a SiteMatrix object (see SiteMatrixI)
 Args    :  string

_parse_logs

 Title   : _parse_logs
 Usage   :
 Function: Parses the next site matrix log values in the meme file
 Throws  :
 Example :  Internal stuff
 Returns :  array of array refs
 Args    :  string

_parseInstance

 Title   : _parseInstance
 Usage   :
 Function:  Parses the next sites instances from the meme file
 Throws  :
 Example :  Internal stuff
 Returns :  Bio::Matrix::PSM::InstanceSite object
 Args    :  none
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