# activations = []
# for i,x_i in enumerate(x):
# activations.append(fMap.map_features([x_i,y[i]]))
# print(activations)
# plt.plot(x, activations)
# plt.show()
demos = []
writer = open(
"data/mcar_birl_steps" + str(num_steps) + "_size" + str(step_size) +
"_conf" + str(confidence) + "_seed" + str(seed) + "_demos" + str(reps),
"w")
for i in range(reps):
print(">>>>iteration", i)
reward, states_visited, actions_taken, steps = run_episode(
env, valueFunction, n, False, EPSILON, get_actions=True)
#collect (s,a) pairs
if i >= skip_time:
demos.extend(zip(states_visited, actions_taken))
print("steps = ", steps)
bayesirl = BIRL(solve_mdp, fMap, env, discount)
birl_value_fn, birl_reward = bayesirl.get_opt_policy(demos,
num_features,
confidence,
num_steps,
step_size,
time_limit=200)
#pickle the controller (value function)
#with open('mcar_maxent_policy_ss.pickle', 'wb') as f:
# x = np.linspace(0,1)
# y = np.ones(len(x))
# activations = []
# for i,x_i in enumerate(x):
# activations.append(fMap.map_features([x_i,y[i]]))
# print(activations)
# plt.plot(x, activations)
# plt.show()
writer = open("data/mcar_mwal_seed" + str(seed) + "_demos" + str(reps),
"w")
for i in range(reps):
print(">>>>iteration", i)
reward, states_visited, steps = run_episode(env, valueFunction, n,
False, EPSILON)
#compute feature counts
fcounts = compute_feature_counts(fMap, states_visited, discount, env)
print("steps = ", steps)
#print("feature count = ", fcounts)
features.append(fcounts)
features = np.array(features)
flabels = [str(c) for c in centers]
sign_finder = FeatureSignExtractor(features, flabels)
slopes = sign_finder.estimate_signs()
fsigns = np.sign(slopes)
signedfMap = rbf.SignedRbf_2D_Feature_Map(rbfun, fsigns)
# for f in range(len(features[0])):
EPSILON = 0
discount = 1.0 #using no discount factor for now
valueFunction = ValueFunction(alpha, numOfTilings)
features = []
for i in range(reps):
print(">>>>iteration", i)
#pick feature map
#fMap = Constant_Feature_Map()
rbf = RBF(np.array([[-1.2], [-0.3], [0.6]]), 0.7 * np.ones(3),
env.action_space.n)
fMap = Rbf_Position_Feature_Map(rbf)
steps, states_visited = run_episode(env, valueFunction, 1, False,
EPSILON)
#compute feature counts
fcounts = compute_feature_counts(fMap, states_visited, discount)
print("steps = ", steps)
print("feature count = ", fcounts)
features.append(fcounts)
plt.plot(range(1, reps + 1), features)
plt.legend(['RBF(-1.2)', 'RBF(-0.3)', 'RBF(0.6)'])
plt.xlabel("Number of episodes")
plt.ylabel("Feature Counts")
plt.show()
