OBO::Util::Ontolome - A set of ontologies.
use OBO::Util::Set;
use strict;
my $o1 = OBO::Core::Ontology->new();
my $o2 = OBO::Core::Ontology->new();
my $o3 = OBO::Core::Ontology->new();
my $ome1 = OBO::Util::Ontolome->new();
$ome1->add($o1);
$ome1->add_all($o2, $o3);
my $ome2 = OBO::Util::Ontolome->new();
$ome2->add_all($o1, $o2, $o3);
A collection that contains no duplicate ontology elements. More formally, an ontolome contains no pair of ontologies $e1 and $e2 such that $e1->equals($e2). As implied by its name, this package models the set of ontologies.
Erick Antezana, <erant@psb.ugent.be>
Copyright (C) 2007, 2008 by Erick Antezana
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.7 or, at your option, any later version of Perl 5 you may have available.
Usage - $ome->union($o1, $o2, ...) Returns - an ontology (OBO::Core::Ontology) being the union of the parameters (ontologies) Args - the ontologies (OBO::Core::Ontology) to be united Function - creates an ontology having the union of terms and relationships from the given ontologies Remark1 - we are assuming: same IDSPACE among the ontologies and for merging terms, they must have the same name and ID Remark2 - the union is made on the basis of the IDs
Usage - $ome->intersection($o1, $o2)
Return - an ontology (OBO::Core::Ontology) holding the 'intersection' of $o1 and $o2
Args - the two ontologies (OBO::Core::Ontology) to be intersected
Function - finds the intersection ontology from $o1 and $o2. All the common terms by ID
are added to the resulting ontology. This method provides a way of comparing two
ontologies. The resulting ontology gives hints about the missing and identical
terms (comparison done by term ID). A closer analysis should be done to identify
the differences.
Remark - Performance issues with huge ontologies.
