NAME

         GO::Model::Association - association between a GO term and a gene product

SYNOPSIS

         # print all gene products associated with a GO::Model::Term
         my $assoc_l = $term->association_list;
         foreach my $assoc (@$assoc_l) {
           printf "gene product:%s %s %s (evidence: %s)\n",
             $assoc->gene_product->symbol,
             $assoc->is_not ? "IS NOT" : "IS",
             $term->name,
             map {$_->code} @{$assoc->evidence_list};
         }

DESCRIPTION

       Represents an association between a GO term (GO::Model::Term) and a gene product
       (GO::Model::GeneProduct)

   go_public_acc
         Usage   -
         Returns -
         Args    -

   add_evidence
         Usage   - $assoc->add_evidence($my_evid);
         Returns -
         Args    - GO::Model::Evidence

   evidence_list
         Usage   - my $ev_l = $assoc->evidence_list;
         Returns -
         Args    -

       gets/sets arrayref of GO::Model::Evidence

   evidence_as_str
         Usage   - print $assoc->evidence_as_str
         Usage   - print $assoc->evidence_as_str(1); #verbose
         Returns -
         Args    - verbose

       concatenates evcodes together, for display

   has_evcode
         Usage   - if $assoc->has_evcode("IEA");
         Returns - boolean
         Args    - evcode [string]

   remove_evcode
         Usage   - $assoc->remove_evcode("IEA");
         Returns -
         Args    - evcode [string]

       removes all evidence of the specified type from the association; useful for filtering

   evidence_score
         Usage   - my $score = $assoc->evidence_score
         Returns - 0 <= float <= 1
         Args    -

       returns a score for the association based on the evidence;

       This is an EXPERIMENTAL method; it may be removed in future versions.

       The evidence fields can be thought of in a loose hierachy:

       TAS
          IDA
             IMP/IGI/IPI
                        ISS
                           NAS

       see http://www.geneontology.org/GO.evidence.html

   gene_product
         Usage   - my $gp = $assoc->gene_product
         Returns -
         Args    -

       gets sets GO::Model::GeneProduct

   assigned_by
         Usage   -
         Returns -
         Args    -

   is_not
         Usage   -
         Returns -
         Args    -

       gets/sets boolean representing whether this relationship is negated

   assocdate
         Usage   -
         Returns -
         Args    -

   assocdate
         Usage   -
         Returns -
         Args    -

       gets/sets integer representing the date of the association (YYYYMMDD format)

   role_group
         Usage   -
         Returns -
         Args    -

       gets/sets integer to indicate which associations go together