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Bio::Tools::Run::Alignment::Blat(3pm) User Contributed Perl Documentation Bio::Tools::Run::Alignment::Blat(3pm)

NAME

Bio::Tools::Run::Alignment::Blat

SYNOPSIS

 use Bio::Tools::Run::Alignment::Blat;
 my $factory = Bio::Tools::Run::Alignment::Blat->new(-db => $database);
 # $report is a Bio::SearchIO-compliant object
 my $report = $factory->run($seqobj);

DESCRIPTION

Wrapper module for Blat program. This newer version allows for all parameters to be set by passing them as an option to new().

Key bits not implemented yet (TODO):

  • Implement all needed Bio::Tools::Run::WrapperBase methods

    Missing are a few, including version().

  • Re-implement using IPC::Run

    Would like to get this running under something less reliant on OS-dependent changes within code.

  • No .2bit or .nib conversions yet

    These require callouts to faToNib or faTwoTwoBit, which may or may not be installed on a user's machine. We can possibly add functionality to check for faToTwoBit/faToNib and other UCSC tools in the 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

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://redmine.open-bio.org/projects/bioperl/

AUTHOR

 Chris Fields - cjfields at bioperl dot org
 Original author - Bala Email bala@tll.org.sg

APPENDIX

The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _

new

 Title   : new
 Usage   : $blat->new( -db => '' )
 Function: Create a new Blat factory
 Returns : A new Bio::Tools::Run::Alignment::Blat object
 Args    : -db       : Mandatory parameter. See db()
           -qsegment : see qsegment()
           -tsegment : see tsegment()
           Also, Blat parameters and flags are accepted: -t, -q, -minIdentity,
              -minScore, -out, -trimT, ...
           See Blat's manual for details.

program_name

 Title   : program_name
 Usage   : $factory->program_name()
 Function: Get the program name
 Returns : string
 Args    : None

program_dir

 Title   : program_dir
 Usage   : $factory->program_dir(@params)
 Function: returns the program directory, obtained from ENV variable.
 Returns : string
 Args    :

run

 Title   : run()
 Usage   : $obj->run($query)
 Function: Run Blat.
 Returns : A Bio::SearchIO object that holds the results
 Args    : A Bio::PrimarySeqI object or a file of query sequences

align

 Title   : align
 Usage   : $obj->align($query)
 Function: Alias to run()

db

 Title   : db
 Usage   : $obj->db()
 Function: Get or set the file of database sequences (.fa , .nib or .2bit)
 Returns : Database filename
 Args    : Database filename

qsegment

 Title    : qsegment
 Usage    : $obj->qsegment('sequence_a:0-1000')
 Function : pass in a B<UCSC-compliant> string for the query sequence(s)
 Returns  : string
 Args     : string
 Note     : Requires the sequence(s) in question be 2bit or nib format
 Reminder : UCSC segment/regions coordinates are 0-based half-open (sequence
            begins at 0, but start isn't counted with length), whereas BioPerl
            coordinates are 1-based closed (sequence begins with 1, both start
            and end are counted in the length of the segment). For example, a
            segment that is 'sequence_a:0-1000' will have BioPerl coordinates of
            'sequence_a:1-1000', both with the same length (1000).

tsegment

 Title    : tsegment
 Usage    : $obj->tsegment('sequence_a:0-1000')
 Function : pass in a B<UCSC-compliant> string for the target sequence(s)
 Returns  : string
 Args     : string
 Note     : Requires the sequence(s) in question be 2bit or nib format
 Reminder : UCSC segment/regions coordinates are 0-based half-open (sequence
            begins at 0, but start isn't counted with length), whereas BioPerl
            coordinates are 1-based closed (sequence begins with 1, both start
            and end are counted in the length of the segment). For example, a
            segment that is 'sequence_a:0-1000' will have BioPerl coordinates of
            'sequence_a:1-1000', both with the same length (1000).

outfile_name

 Title    : outfile_name
 Usage    : $obj->outfile_name('out.blat')
 Function : Get or set the name for the BLAT output file
 Returns  : string
 Args     : string

searchio

 Title    : searchio
 Usage    : $obj->searchio{-writer => $writer}
 Function : Pass in additional parameters to the returned Bio::SearchIO parser
 Returns  : Hash reference with Bio::SearchIO parameters
 Args     : Hash reference
 Note     : Currently, this implementation overrides any passed -format
            parameter based on whether the output is changed ('out').  This
            may change if requested, but we can't see the utility of doing so,
            as requesting mismatched output/parser combinations is just a recipe
            for disaster

Bio::ParameterBaseI-specific methods

These methods are part of the Bio::ParameterBaseI interface

set_parameters

 Title   : set_parameters
 Usage   : $pobj->set_parameters(%params);
 Function: sets the parameters listed in the hash or array
 Returns : None
 Args    : [optional] hash or array of parameter/values.  These can optionally
           be hash or array references
 Note    : This only sets parameters; to set methods use the method name

reset_parameters

 Title   : reset_parameters
 Usage   : resets values
 Function: resets parameters to either undef or value in passed hash
 Returns : none
 Args    : [optional] hash of parameter-value pairs

validate_parameters

 Title   : validate_parameters
 Usage   : $pobj->validate_parameters(1);
 Function: sets a flag indicating whether to validate parameters via
           set_parameters() or reset_parameters()
 Returns : Bool
 Args    : [optional] value evaluating to True/False
 Note    : NYI

parameters_changed

 Title   : parameters_changed
 Usage   : if ($pobj->parameters_changed) {...}
 Function: Returns boolean true (1) if parameters have changed
 Returns : Boolean (0 or 1)
 Args    : None
 Note    : This module does not run state checks, so this always returns True

available_parameters

 Title   : available_parameters
 Usage   : @params = $pobj->available_parameters()
 Function: Returns a list of the available parameters
 Returns : Array of parameters
 Args    : [optional] name of executable being used; defaults to returning all
           available parameters

get_parameters

 Title   : get_parameters
 Usage   : %params = $pobj->get_parameters;
 Function: Returns list of set key-value pairs, parameter => value
 Returns : List of key-value pairs
 Args    : none

to_* methods

All to_* methods are implementation-specific

to_exe_string

 Title   : to_exe_string
 Usage   : $string = $pobj->to_exe_string;
 Function: Returns string (command line string in this case)
 Returns : String 
 Args    :
2021-01-06 perl v5.32.0