NAME
Bio::Search::Result::ResultI - Abstract interface to Search Result objects
SYNOPSIS
# Bio::Search::Result::ResultI objects cannot be instantiated since this # module defines a pure interface.
# Given an object that implements the Bio::Search::Result::ResultI interface, # you can do the following things with it:
use Bio::SearchIO;
my $io = new Bio::SearchIO(-format => 'blast',
-file => 't/data/HUMBETGLOA.tblastx');
my $result = $io->next_result;
while( $hit = $result->next_hit()) { # enter code here for hit processing
}
my $id = $result->query_name();
my $desc = $result->query_description();
my $dbname = $result->database_name();
my $size = $result->database_letters();
my $num_entries = $result->database_entries();
my $gap_ext = $result->get_parameter('gapext');
my @params = $result->available_parameters;
my $kappa = $result->get_statistic('kappa');
my @statnames = $result->available_statistics;DESCRIPTION
Bio::Search::Result::ResultI objects are data structures containing the results from the execution of a search algorithm. As such, it may contain various algorithm specific information as well as details of the execution, but will contain a few fundamental elements, including the ability to return Bio::Search::Hit::HitI objects.
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://bio.perl.org/MailList.html - About the mailing listsReporting 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 email or the web:
bioperl-bugs@bio.perl.org
http://bugzilla.bioperl.org/AUTHOR
Aaron Mackey <amackey@virginia.edu> (original author)
Steve Chervitz <sac@bioperl.org>
See the FEEDBACK section for where to send bug reports and comments.
COPYRIGHT
Copyright (c) 1999-2001 Aaron Mackey, Steve Chervitz. All Rights Reserved.
DISCLAIMER
This software is provided "as is" without warranty of any kind.
APPENDIX
The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _
next_hit
Title : next_hit
Usage : while( $hit = $result->next_hit()) { ... }
Function: Returns the next available Hit object, representing potential
matches between the query and various entities from the database.
Returns : a Bio::Search::Hit::HitI object or undef if there are no more.
Args : nonequery_name
Title : query_name
Usage : $id = $result->query_name();
Function: Get the string identifier of the query used by the
algorithm that performed the search.
Returns : a string.
Args : nonequery_accession
Title : query_accession
Usage : $id = $result->query_accession();
Function: Get the accession (if available) for the query sequence
Returns : a string
Args : nonequery_length
Title : query_length
Usage : $id = $result->query_length();
Function: Get the length of the query sequence
used in the search.
Returns : a number
Args : nonequery_description
Title : query_description
Usage : $id = $result->query_description();
Function: Get the description of the query sequence
used in the search.
Returns : a string
Args : nonedatabase_name
Title : database_name
Usage : $name = $result->database_name()
Function: Used to obtain the name of the database that the query was searched
against by the algorithm.
Returns : a scalar string
Args : nonedatabase_letters
Title : database_letters
Usage : $size = $result->database_letters()
Function: Used to obtain the size of database that was searched against.
Returns : a scalar integer (units specific to algorithm, but probably the
total number of residues in the database, if available) or undef if
the information was not available to the Processor object.
Args : nonedatabase_entries
Title : database_entries
Usage : $num_entries = $result->database_entries()
Function: Used to obtain the number of entries contained in the database.
Returns : a scalar integer representing the number of entities in the database
or undef if the information was not available.
Args : noneget_parameter
Title : get_parameter
Usage : my $gap_ext = $result->get_parameter('gapext')
Function: Returns the value for a specific parameter used
when running this result
Returns : string
Args : name of parameter (string)available_parameters
Title : available_parameters
Usage : my @params = $result->available_parameters
Function: Returns the names of the available parameters
Returns : Return list of available parameters used for this result
Args : noneget_statistic
Title : get_statistic
Usage : my $gap_ext = $result->get_statistic('kappa')
Function: Returns the value for a specific statistic available
from this result
Returns : string
Args : name of statistic (string)available_statistics
Title : available_statistics
Usage : my @statnames = $result->available_statistics
Function: Returns the names of the available statistics
Returns : Return list of available statistics used for this result
Args : nonealgorithm
Title : algorithm
Usage : my $r_type = $result->algorithm
Function: Obtain the name of the algorithm used to obtain the Result
Returns : string (e.g., BLASTP)
Args : [optional] scalar string to set valuealgorithm_version
Title : algorithm_version
Usage : my $r_version = $result->algorithm_version
Function: Obtain the version of the algorithm used to obtain the Result
Returns : string (e.g., 2.1.2)
Args : [optional] scalar string to set algorithm version valuealgorithm_reference
Title : algorithm_reference
Usage : $obj->algorithm_reference($newval)
Function:
Returns : value of the literature reference for the algorithm
Args : newvalue (optional)
Comments: The default implementation in ResultI returns an empty string
rather than throwing a NotImplemented exception, since
the ref may not always be available and is not critical.num_hits
Title : num_hits
Usage : my $hitcount= $result->num_hits
Function: returns the number of hits for this query result
Returns : integer
Args : nonehits
Title : hits
Usage : my @hits = $result->hits
Function: Returns the available hits for this Result
Returns : Array of L<Bio::Search::Hit::HitI> objects
Args : noneno_hits_found
Usage : $nohits = $blast->no_hits_found( [iteration_number] );
Purpose : Get boolean indicator indicating whether or not any hits
were present in the report.
This is NOT the same as determining the number of hits via
the hits() method, which will return zero hits if there were no
hits in the report or if all hits were filtered out during the parse.
Thus, this method can be used to distinguish these possibilities
for hitless reports generated when filtering.
Returns : Boolean
Argument : (optional) integer indicating the iteration number (PSI-BLAST)
If iteration number is not specified and this is a PSI-BLAST result,
then this method will return true only if all iterations had
no hits found.set_no_hits_found
Usage : $blast->set_no_hits_found( [iteration_number] );
Purpose : Set boolean indicator indicating whether or not any hits
were present in the report.
Returns : n/a
Argument : (optional) integer indicating the iteration number (PSI-BLAST)iterations
Usage : $num_iterations = $blast->iterations; (get)
$blast->iterations($num_iterations); (set)
Purpose : Set/get the number of iterations in the Blast Report (PSI-BLAST).
Returns : Total number of iterations in the report
Argument : integer (when setting)psiblast
Usage : if( $blast->psiblast ) { ... }
Purpose : Set/get a boolean indicator whether or not the report
is a PSI-BLAST report.
Returns : 1 if PSI-BLAST, undef if not.
Argument : 1 (when setting)