def initializeTreeAndKeepValues(self):
# This is just to get a message into the first round.
if self.LERbWinner != None:
self.msg[self.R] += "LERb winner is " + self.b.names[self.LERbWinner] + ". "
if self.LERaWinner != None:
self.msg[self.R] += "LERa winner is " + self.b.names[self.LERaWinner] + ". "
MeekSTV.initializeTreeAndKeepValues(self)
def preCount(self):
self.LERa = self.LERoption == "LERa" or self.LERoption == "LERab"
self.LERb = self.LERoption == "LERb" or self.LERoption == "LERab"
self.optionsMsg = "LER option: %s. \n" % self.LERoption
self.optionsMsg += "Using %s for the completion method." % self.completion
condorcetElection = Condorcet(self.dirtyBallots)
condorcetElection.completion = self.completion
condorcetElection.withdrawn = self.withdrawn[:]
condorcetElection.runElection()
self.LERaWinner = None
self.LERbWinner = None
if self.LERb:
self.LERbWinner = condorcetElection.b.names[condorcetElection.winner]
if self.LERa and self.dirtyBallots.numSeats > 1:
condorcetElection2 = Condorcet(self.dirtyBallots)
condorcetElection2.completion = self.completion
condorcetElection2.withdrawn = self.withdrawn[:]
condorcetElection2.withdrawn.append(self.dirtyBallots.names.index(self.LERbWinner))
condorcetElection2.runElection()
self.LERaWinner = condorcetElection2.b.names[condorcetElection2.winner]
else:
self.LERaWinner = condorcetElection.b.names[condorcetElection.winner]
MeekSTV.preCount(self)
# adapt names to indices, now that withdrawals are finalized
if self.LERaWinner != None:
self.LERaWinner = self.b.names.index(self.LERaWinner)
if self.LERbWinner != None:
print "evil %s in %s" % (self.LERbWinner , self.b.names)
self.LERbWinner = self.b.names.index(self.LERbWinner)
# temporarily mark LERbWinner as a loser.
self.purgatory.remove(self.LERbWinner)
self.losers.append(self.LERbWinner)
self.lostAtRound[self.LERbWinner] = 0
self.numSeats -= 1
def runElection(self):
MeekSTV.runElection(self)
if self.LERbWinner != None:
self.numSeats += 1
self.losers.remove(self.LERbWinner)
self.winners.append(self.LERbWinner)
self.lostAtRound[self.LERbWinner] = None
self.wonAtRound[self.LERbWinner] = 0
def runElection(self):
MeekSTV.runElection(self)
if self.LERbWinner != None:
self.numSeats += 1
self.losers.remove(self.LERbWinner)
self.winners.append(self.LERbWinner)
self.lostAtRound[self.LERbWinner] = None
self.wonAtRound[self.LERbWinner] = 0
def initializeTreeAndKeepValues(self):
# This is just to get a message into the first round.
if self.LERbWinner != None:
self.msg[self.R] += "LERb winner is " + self.b.names[
self.LERbWinner] + ". "
if self.LERaWinner != None:
self.msg[self.R] += "LERa winner is " + self.b.names[
self.LERaWinner] + ". "
MeekSTV.initializeTreeAndKeepValues(self)
def getLosers(self, ppp=None):
if ppp == None: ppp = self.purgatory
ppp = ppp[:]
try:
ppp.remove(self.LERaWinner)
except ValueError:
pass
return MeekSTV.getLosers(self, ppp)
def breakWeakTie(self, R, cList, mostfewest, what=""):
newCList = cList[:]
if what == "candidates to eliminate":
try:
newCList.remove(self.LERaWinner)
except ValueError:
pass
return MeekSTV.breakWeakTie(self, R, newCList, mostfewest, what)
def breakWeakTie(self, R, cList, mostfewest, what=""):
newCList = cList[:]
if what == "candidates to eliminate":
try:
newCList.remove(self.LERaWinner)
except ValueError:
pass
return MeekSTV.breakWeakTie(self,R,newCList,mostfewest,what)
def getLosers(self, ppp = None):
if ppp == None: ppp = self.purgatory
ppp = ppp[:]
try:
ppp.remove(self.LERaWinner)
except ValueError:
pass
return MeekSTV.getLosers(self,ppp)
def preCount(self):
self.LERa = self.LERoption == "LERa" or self.LERoption == "LERab"
self.LERb = self.LERoption == "LERb" or self.LERoption == "LERab"
self.optionsMsg = "LER option: %s. \n" % self.LERoption
self.optionsMsg += "Using %s for the completion method." % self.completion
condorcetElection = Condorcet(self.dirtyBallots)
condorcetElection.completion = self.completion
condorcetElection.withdrawn = self.withdrawn[:]
condorcetElection.runElection()
self.LERaWinner = None
self.LERbWinner = None
if self.LERb:
self.LERbWinner = condorcetElection.b.names[
condorcetElection.winner]
if self.LERa and self.dirtyBallots.numSeats > 1:
condorcetElection2 = Condorcet(self.dirtyBallots)
condorcetElection2.completion = self.completion
condorcetElection2.withdrawn = self.withdrawn[:]
condorcetElection2.withdrawn.append(
self.dirtyBallots.names.index(self.LERbWinner))
condorcetElection2.runElection()
self.LERaWinner = condorcetElection2.b.names[
condorcetElection2.winner]
else:
self.LERaWinner = condorcetElection.b.names[
condorcetElection.winner]
MeekSTV.preCount(self)
# adapt names to indices, now that withdrawals are finalized
if self.LERaWinner != None:
self.LERaWinner = self.b.names.index(self.LERaWinner)
if self.LERbWinner != None:
print "evil %s in %s" % (self.LERbWinner, self.b.names)
self.LERbWinner = self.b.names.index(self.LERbWinner)
# temporarily mark LERbWinner as a loser.
self.purgatory.remove(self.LERbWinner)
self.losers.append(self.LERbWinner)
self.lostAtRound[self.LERbWinner] = 0
self.numSeats -= 1
def __init__(self, b):
MeekSTV.__init__(self, b)
self.LERoption = "LERa"
self.completion = "Schwartz Sequential Dropping"
self.createUIoptions(["completionMethod", "LERoption"])
def __init__(self, b):
MeekSTV.__init__(self, b)
self.LERoption = "LERa"
self.completion = "Schwartz Sequential Dropping"
self.createUIoptions(["completionMethod","LERoption"])