@matrix = voteobj.votes
end
- def list_defeats
+ def victories_and_ties
victors = Array.new
ties = Array.new
+ victories = Hash.new
candidates = @matrix.keys.sort
candidates.each do |candidate|
ties << [candidate, challenger]
end
end
- end
+ end
- victories = victors.sort {|a,b| b[2] <=> a[2]}
+ victors.each do |list|
+ if victories.has_key?(list[0])
+ victories[list[0]][list[1]] = list[2]
+ else
+ victories[list[0]] = Hash.new
+ victories[list[0]][list[1]] = list[2]
+ end
+ end
return victories, ties
end
protected
def defeats(candidates=nil, votes=nil)
- candidates = @election.candidates unless candidates
- votes = @election.votes unless votes
+ candidates ||= @election.candidates || []
+ # we're assumign that if there are candidates, there must be at
+ # least one vote for them
+ votes ||= @election.votes
defeats = Array.new
- candidates = [candidates] unless candidates.class == Array
candidates.each do |candidate|
candidates.each do |challenger|
next if candidate == challenger
def initialize(voteobj=nil)
super(voteobj)
@winners = self.cpssd()
- @winners.delete nil
end
protected
def cpssd
votes = @election.votes
- candidates = *@election.candidates
+ candidates = @election.candidates.dup
def in_schwartz_set?(candidate, candidates, transitive_defeats)
candidates.each do |challenger|