def qLearning(world, userMap, maxX, maxY, discount=0.9, MAX_ITERATIONS=1000):
gen = BasicGridWorld(userMap, maxX, maxY)
domain = gen.generateDomain()
initialState = gen.getExampleState(domain);
rf = BasicRewardFunction(maxX, maxY, userMap)
tf = BasicTerminalFunction(maxX, maxY)
env = SimulatedEnvironment(domain, rf, tf, initialState)
visualizeInitialGridWorld(domain, gen, env)
hashingFactory = SimpleHashableStateFactory()
timing = defaultdict(list)
rewards = defaultdict(list)
steps = defaultdict(list)
convergence = defaultdict(list)
allStates = getAllStates(domain, rf, tf, initialState)
MAX_ITERATIONS = MAX_ITERATIONS
NUM_INTERVALS = MAX_ITERATIONS;
iterations = range(1, MAX_ITERATIONS + 1)
qInit = 0
for lr in [0.01, 0.1, 0.5]:
for epsilon in [0.3, 0.5, 0.7]:
last10Chg = deque([10] * 10, maxlen=10)
Qname = 'Q-Learning L{:0.2f} E{:0.1f}'.format(lr, epsilon)
#agent = QLearning(domain, discount, hashingFactory, qInit, lr, epsilon, 300)
agent = QLearning(domain, discount, hashingFactory, qInit, lr, epsilon)
agent.setDebugCode(0)
print("*** {}: {}".format(world, Qname))
for nIter in iterations:
if nIter % 200 == 0:
print('Iteration: {}'.format(nIter))
startTime = clock()
#ea = agent.runLearningEpisode(env, 300)
ea = agent.runLearningEpisode(env)
env.resetEnvironment()
agent.initializeForPlanning(rf, tf, 1)
p = agent.planFromState(initialState) # run planning from our initial state
endTime = clock()
timing[Qname].append((endTime-startTime)*1000)
last10Chg.append(agent.maxQChangeInLastEpisode)
convergence[Qname].append(sum(last10Chg)/10.)
# evaluate the policy with one roll out visualize the trajectory
runEvals(initialState, p, rewards[Qname], steps[Qname], rf, tf, evalTrials=1)
if nIter % 1000 == 0:
dumpPolicyMap(MapPrinter.printPolicyMap(allStates, p, gen.getMap()),
'{} {} Iter {} Policy Map.pkl'.format(world, Qname, nIter))
simpleValueFunctionVis(agent, p, initialState, domain, hashingFactory, Qname)
dumpCSV(nIter, timing[Qname], rewards[Qname], steps[Qname], convergence[Qname], world, Qname)
def pIteration(world, userMap, maxX, maxY, discount=0.99, MAX_ITERATIONS=100):
gen = BasicGridWorld(userMap, maxX, maxY)
domain = gen.generateDomain()
initialState = gen.getExampleState(domain);
rf = BasicRewardFunction(maxX, maxY, userMap)
tf = BasicTerminalFunction(maxX, maxY)
env = SimulatedEnvironment(domain, rf, tf, initialState)
visualizeInitialGridWorld(domain, gen, env)
hashingFactory = SimpleHashableStateFactory()
timing = defaultdict(list)
rewards = defaultdict(list)
steps = defaultdict(list)
convergence = defaultdict(list)
policy_converged = defaultdict(list)
last_policy = defaultdict(list)
allStates = getAllStates(domain, rf, tf, initialState)
print("*** {} Policy Iteration Analysis".format(world))
MAX_ITERATIONS = MAX_ITERATIONS
iterations = range(1, MAX_ITERATIONS + 1)
pi = PolicyIteration(domain,rf,tf,discount,hashingFactory,-1,1,1);
pi.setDebugCode(0)
for nIter in iterations:
startTime = clock()
#pi = PolicyIteration(domain,rf,tf,discount,hashingFactory,-1,1, nIter);
#pi.setDebugCode(0)
# run planning from our initial state
p = pi.planFromState(initialState);
endTime = clock()
timing['Policy'].append((endTime-startTime)*1000)
convergence['Policy'].append(pi.lastPIDelta)
# evaluate the policy with one roll out visualize the trajectory
runEvals(initialState, p, rewards['Policy'], steps['Policy'], rf, tf, evalTrials=1)
if nIter == 1 or nIter == 50:
simpleValueFunctionVis(pi, p, initialState, domain, hashingFactory, "Policy Iteration{}".format(nIter))
policy = pi.getComputedPolicy()
allStates = pi.getAllStates()
current_policy = [[(action.ga, action.pSelection)
for action in policy.getActionDistributionForState(state)]
for state in allStates]
policy_converged['Policy'].append(current_policy == last_policy)
last_policy = current_policy
simpleValueFunctionVis(pi, p, initialState, domain, hashingFactory, "Policy Iteration{}".format(nIter))
dumpPolicyMap(MapPrinter.printPolicyMap(allStates, p, gen.getMap()),
world + ' Policy Iteration Policy Map.pkl')
dumpCSVp(iterations, timing['Policy'], rewards['Policy'], steps['Policy'],convergence['Policy'],
world, 'Policy', policy_converged['Policy'])
def vIteration(world, userMap, maxX, maxY, discount=0.99, MAX_ITERATIONS=100):
gen = BasicGridWorld(userMap, maxX, maxY)
domain = gen.generateDomain()
initialState = gen.getExampleState(domain);
rf = BasicRewardFunction(maxX, maxY, userMap)
tf = BasicTerminalFunction(maxX, maxY)
env = SimulatedEnvironment(domain, rf, tf, initialState)
visualizeInitialGridWorld(domain, gen, env)
hashingFactory = SimpleHashableStateFactory()
timing = defaultdict(list)
rewards = defaultdict(list)
steps = defaultdict(list)
convergence = defaultdict(list)
allStates = getAllStates(domain, rf, tf, initialState)
print("*** {} Value Iteration Analysis".format(world))
MAX_ITERATIONS = MAX_ITERATIONS
iterations = range(1, MAX_ITERATIONS + 1)
vi = ValueIteration(domain, rf, tf, discount, hashingFactory, -1, 1);
vi.setDebugCode(0)
vi.performReachabilityFrom(initialState)
vi.toggleUseCachedTransitionDynamics(False)
timing['Value'].append(0)
for nIter in iterations:
startTime = clock()
vi.runVI()
p = vi.planFromState(initialState);
endTime = clock()
timing['Value'].append((endTime-startTime)*1000)
convergence['Value'].append(vi.latestDelta)
# evaluate the policy with evalTrials roll outs
runEvals(initialState, p, rewards['Value'], steps['Value'], rf, tf, evalTrials=1)
if nIter == 1 or nIter == 50:
simpleValueFunctionVis(vi, p, initialState, domain, hashingFactory, "Value Iteration {}".format(nIter))
simpleValueFunctionVis(vi, p, initialState, domain, hashingFactory, "Value Iteration {}".format(nIter))
dumpPolicyMap(MapPrinter.printPolicyMap(allStates, p, gen.getMap()),
world + ' Value Iteration Policy Map.pkl')
dumpCSV(nIter, timing['Value'][1:], rewards['Value'], steps['Value'], convergence['Value'], world, 'Value')
rf = BasicRewardFunction(maxX, maxY, userMap)
tf = BasicTerminalFunction(maxX, maxY)
env = SimulatedEnvironment(domain, rf, tf, initialState)
# Print the map that is being analyzed
print "/////{} Grid World Analysis/////\n".format(world)
MapPrinter().printMap(MapPrinter.matrixToMap(userMap))
visualizeInitialGridWorld(domain, gen, env)
hashingFactory = SimpleHashableStateFactory()
increment = MAX_ITERATIONS / NUM_INTERVALS
timing = defaultdict(list)
rewards = defaultdict(list)
steps = defaultdict(list)
convergence = defaultdict(list)
allStates = getAllStates(domain, rf, tf, initialState)
# Value Iteration
iterations = range(1, MAX_ITERATIONS + 1)
vi = ValueIteration(domain, rf, tf, discount, hashingFactory, -1, 1)
vi.setDebugCode(0)
vi.performReachabilityFrom(initialState)
vi.toggleUseCachedTransitionDynamics(False)
print "//{} Value Iteration Analysis//".format(world)
flag = True
timing['Value'].append(0)
for nIter in iterations:
startTime = clock()
vi.runVI()
#timing['Value'].append((clock()-startTime) * 1000)
timing['Value'].append(timing['Value'][-1] + clock() - startTime)
p = vi.planFromState(initialState)
# Print the map that is being analyzed
print "/////Easy Grid World Analysis/////\n"
MapPrinter().printMap(MapPrinter.matrixToMap(userMap))
# Create picture of grid world
visualizeInitialGridWorld(domain, gen, env)
hashingFactory = SimpleHashableStateFactory()
increment = MAX_ITERATIONS / NUM_INTERVALS
timing = defaultdict(list)
rewards = defaultdict(list)
steps = defaultdict(list)
convergence = defaultdict(list)
policy_converged = defaultdict(list)
last_policy = defaultdict(list)
allStates = getAllStates(domain, rf, tf, initialState)
# This sections runs Value Iteration
# iterations = range(1, MAX_ITERATIONS + 1)
# print "//Easy Value Iteration Analysis//"
# for nIter in iterations:
# startTime = clock()
# vi = ValueIteration(domain, rf, tf, discount, hashingFactory, -1,
# nIter); # //Added a very high delta number in order to guarantee that value iteration occurs the max number of iterations for comparison with the other algorithms.
# # run planning from our initial state
# vi.setDebugCode(0)
# p = vi.planFromState(initialState);
# timing['Value'].append((clock() - startTime) * 1000)
# convergence['Value'].append(vi.latestDelta)
# # evaluate the policy with evalTrials roll outs
for nIter in iterations:
startTime = clock()
if nIter % 50 == 0:
print nIter
ea = agent.runLearningEpisode(env)
env.resetEnvironment()
agent.initializeForPlanning(rf, tf, 1)
p = agent.planFromState(
initialState) # run planning from our initial state
timing[Qname].append((clock() - startTime) * 1000)
last10Rewards.append(agent.maxQChangeInLastEpisode)
convergence[Qname].append(sum(last10Rewards) / 10.)
# evaluate the policy with one roll out visualize the trajectory
runEvals(initialState, p, rewards[Qname], steps[Qname])
# if (nIter == 1):
# simpleValueFunctionVis(agent, p, initialState, domain, hashingFactory, Qname+' {}'.format(nIter))
# if (nIter == 100):
# simpleValueFunctionVis(agent, p, initialState, domain, hashingFactory, Qname+' {}'.format(nIter))
# if (nIter == 1000):
# simpleValueFunctionVis(agent, p, initialState, domain, hashingFactory, Qname+' {}'.format(nIter))
#MapPrinter.printPolicyMap(getAllStates(domain,rf,tf,initialState), p, gen.getMap());
MapPrinter.printPolicyMap(getAllStates(domain, rf, tf, initialState), p,
gen.getMap())
print "\n\n"
simpleValueFunctionVis(agent, p, initialState, domain, hashingFactory,
Qname + ' {}'.format(nIter))
dumpCSV(iterations, timing[Qname], rewards[Qname], steps[Qname],
convergence[Qname], world, Qname)
print "HardGW done"
