def get_p_values(pkl_list, name_list, cut=sys.maxint, round_=0):
pickles = plot_util.load_pickles(name_list, pkl_list)
best_dict, idx_dict, keys = plot_util.get_best_dict(name_list,
pickles,
cut=cut)
p_values = calculate_statistics(best_dict, keys, round_=round_)
return p_values
def main(pkl_list, name_list, save="", cut=sys.maxint,
template_string=template_string, experiment_name="Name",
num_evals="\\#eval"):
pickles = plot_util.load_pickles(name_list, pkl_list)
best_dict, idx_dict, keys = plot_util.get_best_dict(name_list, pickles, cut)
return generate_tex_template(best_dict, name_list,
template_string=template_string, save=save,
num_evals=num_evals, experiment_name=experiment_name)
def main(pkl_list, name_list, cut=sys.maxint):
pickles = plot_util.load_pickles(name_list, pkl_list)
best_dict, idx_dict, keys = plot_util.get_best_dict(name_list, pickles,
cut=cut)
for k in keys:
sys.stdout.write("%10s: %s experiment(s)\n" % (k, len(best_dict[k])))
sys.stdout.write("Unpaired t-tests-----------------------------------------------------\n")
# TODO: replace by itertools
for idx, k in enumerate(keys):
if len(keys) > 1:
for j in keys[idx+1:]:
t_true, p_true = stats.ttest_ind(best_dict[k], best_dict[j])
rounded_t_true, rounded_p_true = stats.ttest_ind(numpy.round(best_dict[k], 3),
numpy.round(best_dict[j], 3))
sys.stdout.write("%10s vs %10s\n" % (k, j))
sys.stdout.write("Standard independent 2 sample test, equal population variance\n")
sys.stdout.write(" "*24 + " T: %10.5e, p-value: %10.5e (%5.3f%%) \n" %
(t_true, p_true, p_true*100))
sys.stdout.write("Rounded: ")
sys.stdout.write(" T: %10.5e, p-value: %10.5e (%5.3f%%)\n" %
(rounded_t_true, rounded_p_true, rounded_p_true*100))
if tuple(map(int, (scipy.__version__.split(".")))) >= (0, 11, 0):
# print scipy.__version__ >= '0.11.0'
t_false, p_false = stats.ttest_ind(best_dict[k], best_dict[j], equal_var=False)
rounded_t_false, rounded_p_false = stats.ttest_ind(numpy.round(best_dict[k], 3),
numpy.round(best_dict[j], 3),
equal_var=False)
sys.stdout.write("Welch's t-test, no equal population variance\n")
sys.stdout.write(" "*24)
sys.stdout.write(": T: %10.5e, p-value: %10.5e (%5.3f%%)\n" %
(t_false, p_false, p_false*100))
sys.stdout.write("Rounded: ")
sys.stdout.write(": T: %10.5e, p-value: %10.5e (%5.3f%%)\n" %
(rounded_t_false, rounded_p_false, rounded_p_false*100))
sys.stdout.write("\n")
sys.stdout.write("Best Value-----------------------------------------------------------\n")
for k in keys:
sys.stdout.write("%10s: %10.5f (min: %10.5f, max: %10.5f, std: %5.3f)\n" %
(k, float(numpy.mean(best_dict[k])), float(numpy.min(best_dict[k])),
numpy.max(best_dict[k]), float(numpy.std(best_dict[k]))))
sys.stdout.write("Needed Trials--------------------------------------------------------\n")
for k in keys:
sys.stdout.write("%10s: %10.5f (min: %10.5f, max: %10.5f, std: %5.3f)\n" %
(k, float(numpy.mean(idx_dict[k])), float(numpy.min(idx_dict[k])),
numpy.max(idx_dict[k]), float(numpy.std(idx_dict[k]))))
sys.stdout.write("------------------------------------------------------------------------\n")
def get_statistics_as_text(pkl_list, name_list, cut=sys.maxint, round_=0):
pickles = plot_util.load_pickles(name_list, pkl_list)
best_dict, idx_dict, keys = plot_util.get_best_dict(name_list,
pickles,
cut=cut)
p_values = calculate_statistics(best_dict, keys, round_=round_)
output = StringIO.StringIO()
output.write(
"Unpaired t-tests-----------------------------------------------------\n"
)
output.write(
"Standard independent 2 sample test, equal population variance\n")
for key in keys:
output.write("%10s: %s experiment(s)\n" % (key, len(best_dict[key])))
for idx, key0 in enumerate(p_values):
if len(keys) > 1:
for j, key1 in enumerate(p_values[key0]):
output.write("%10s vs %10s" % (key0, key1))
output.write(
" p-value: %10.5e (%5.3f%%) \n" %
(p_values[key0][key1], p_values[key0][key1] * 100))
output.write("\n")
output.write(
"Best Value-----------------------------------------------------------\n"
)
for k in keys:
output.write("%10s: %10.5f (min: %10.5f, max: %10.5f, std: %5.3f)\n" %
(k, float(numpy.mean(best_dict[k])),
float(numpy.min(best_dict[k])), numpy.max(
best_dict[k]), float(numpy.std(best_dict[k]))))
output.write(
"Needed Trials--------------------------------------------------------\n"
)
for k in keys:
output.write(
"%10s: %10.5f (min: %10.5f, max: %10.5f, std: %5.3f)\n" %
(k, float(numpy.mean(idx_dict[k])), float(numpy.min(idx_dict[k])),
numpy.max(idx_dict[k]), float(numpy.std(idx_dict[k]))))
output.write(
"------------------------------------------------------------------------\n"
)
output.seek(0)
return output
def main(pkl_list,
name_list,
save="",
cut=sys.maxint,
template_string=template_string,
experiment_name="Name",
num_evals="\\#eval"):
pickles = plot_util.load_pickles(name_list, pkl_list)
best_dict, idx_dict, keys = plot_util.get_best_dict(
name_list, pickles, cut)
return generate_tex_template(best_dict,
name_list,
template_string=template_string,
save=save,
num_evals=num_evals,
experiment_name=experiment_name)
def get_pairwise_wins(pkl_list, name_list, cut=sys.maxint, round_=0):
pickles = plot_util.load_pickles(name_list, pkl_list)
best_dict, idx_dict, keys = plot_util.get_best_dict(name_list,
pickles,
cut=cut)
p_values = calculate_statistics(best_dict, keys, round_=round_)
wins_of_optimizer = dict()
for key in p_values:
wins_of_optimizer[key] = defaultdict(int)
for idx, key0 in enumerate(p_values):
if len(keys) > 1:
for j, key1 in enumerate(p_values[key0]):
if p_values[key0][key1] < 0.05:
if best_dict[key0] < best_dict[key1]:
wins_of_optimizer[key0][key1] += 1
elif best_dict[key1] < best_dict[key0]:
wins_of_optimizer[key1][key0] += 1
return wins_of_optimizer
def calculate_rankings(trial_list, name_list, bootstrap_samples=500, cut=50):
bootstrap_samples = int(bootstrap_samples)
optimizers = [name[0] for name in name_list]
pickles = plot_util.load_pickles(name_list, trial_list)
rankings = dict()
rs = np.random.RandomState(1)
combinations = []
for i in range(bootstrap_samples):
combination = []
target = len(optimizers)
maximum = [len(pickles[name]) for name in optimizers]
for idx in range(target):
combination.append(rs.randint(maximum[idx]))
combinations.append(np.array(combination))
for optimizer in optimizers:
rankings[optimizer] = np.zeros((cut + 1, ), dtype=np.float64)
rankings[optimizer][0] = np.mean(range(1, len(optimizers) + 1))
for i in range(1, cut + 1):
num_products = 0
for combination in combinations:
ranks = scipy.stats.rankdata([
np.round(
plot_util.get_best(pickles[optimizers[idx]][number], i), 5)
for idx, number in enumerate(combination)
])
num_products += 1
for j, optimizer in enumerate(optimizers):
rankings[optimizer][i] += ranks[j]
for optimizer in optimizers:
rankings[optimizer][i] = rankings[optimizer][i] / num_products
return rankings
def calculate_rankings(trial_list, name_list, bootstrap_samples=500, cut=50):
bootstrap_samples = int(bootstrap_samples)
optimizers = [name[0] for name in name_list]
pickles = plot_util.load_pickles(name_list, trial_list)
rankings = dict()
rs = np.random.RandomState(1)
combinations = []
for i in range(bootstrap_samples):
combination = []
target = len(optimizers)
maximum = [len(pickles[name]) for name in optimizers]
for idx in range(target):
combination.append(rs.randint(maximum[idx]))
combinations.append(np.array(combination))
for optimizer in optimizers:
rankings[optimizer] = np.zeros((cut+1,), dtype=np.float64)
rankings[optimizer][0] = np.mean(range(1, len(optimizers) + 1))
for i in range(1, cut+1):
num_products = 0
for combination in combinations:
ranks = scipy.stats.rankdata(
[np.round(
plot_util.get_best(pickles[optimizers[idx]][number], i), 5)
for idx, number in enumerate(combination)])
num_products += 1
for j, optimizer in enumerate(optimizers):
rankings[optimizer][i] += ranks[j]
for optimizer in optimizers:
rankings[optimizer][i] = rankings[optimizer][i] / num_products
return rankings
