CollateX format for GraphML output changed; parser update

[scpubgit/stemmatology.git] / lib / Text / Tradition / Analysis.pm

diff --git a/lib/Text/Tradition/Analysis.pm b/lib/Text/Tradition/Analysis.pm
index 8bfaf1a..fda5137 100644 (file)
--- a/lib/Text/Tradition/Analysis.pm
+++ b/lib/Text/Tradition/Analysis.pm
@@ -56,6 +56,8 @@ is 0 (i.e. the first).
 =item * merge_types - Specify a list of relationship types, where related readings 
 should be treated as identical for the purposes of analysis.
 
+=item * exclude_type1 - Exclude those ranks whose groupings have only type-1 variants.
+
 =back
 
 =begin testing
@@ -150,7 +152,13 @@ sub run_analysis {
        my %lacunae;
        foreach my $rank ( @ranks ) {
                my $missing = [ @lacunose ];
-               push( @groups, group_variants( $tradition, $rank, $missing, \@collapse ) );
+               my $rankgroup = group_variants( $tradition, $rank, $missing, \@collapse );
+               if( $opts{'exclude_type1'} ) {
+                       # Check to see whether this is a "useful" group.
+                       my( $rdgs, $grps ) = _useful_variant( $rankgroup );
+                       next unless @$rdgs;
+               }
+               push( @groups, $rankgroup );
                $lacunae{$rank} = $missing;
        }
        $DB::single = 1;
@@ -187,8 +195,8 @@ relationships in @merge_relationship_types as equivalent.  $lacunose should
 be a reference to an array, to which the sigla of lacunose witnesses at this 
 rank will be appended.
 
-Returns two ordered lists $readings, $groups, where $readings->[$n] is attested
-by the witnesses listed in $groups->[$n].
+Returns a hash $group_readings where $rdg is attested by the witnesses listed 
+in $group_readings->{$rdg}.
 
 =cut