def test_super_efficiency_medium(DEA_example2_data):
data = DEA_example2_data
data.add_input_category('I1')
data.add_input_category('I2')
data.add_input_category('I3')
data.add_output_category('O1')
data.add_output_category('O2')
model = EnvelopmentModelBase(
data,
EnvelopmentModelInputOriented(generate_supper_efficiency_upper_bound),
DefaultConstraintCreator())
super_efficiency_model = SupperEfficiencyModel(model)
start_time = datetime.datetime.now()
solution = super_efficiency_model.run()
end_time = datetime.datetime.now()
utils_for_tests.check_optimal_solution_status_and_sizes(solution, data)
dmus = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K']
utils_for_tests.check_efficiency_scores(dmus, [
1.652173892, 0.6485875732, 0.909247759, 1.116838534, 0.5490716156,
2.485294106, 1.244945494, 0.824120607, 2.299898658, 0.6267333816,
1.088235274
], solution, data, 1e-6)
work_book = xlwt.Workbook()
writer = XLSWriter(Parameters(), work_book, datetime.datetime.today(),
(end_time - start_time).total_seconds())
writer.write_data(solution)
work_book.save('tests/test_super_efficiency_output.xls')
def test_maximize_slacks_usual_weakly_disposable_vars():
categories, xls_data, dmu_name, sheet_name = read_data(
'tests/DEA_example2_data.xls')
coefficients, has_same_dmus = convert_to_dictionary(xls_data)
assert has_same_dmus is False
assert validate_data(categories, coefficients) is True
data = construct_input_data_instance(categories, coefficients)
data.add_input_category('I1')
data.add_input_category('I2')
data.add_input_category('I3')
data.add_output_category('O1')
data.add_output_category('O2')
model = EnvelopmentModelVRSDecorator(
EnvelopmentModelBase(
data,
EnvelopmentModelInputOriented(
generate_upper_bound_for_efficiency_score),
DisposableVarsConstraintCreator(set(['I2', 'O1']))))
model = MaximizeSlacksModel(model)
start_time = datetime.datetime.now()
model_solution = model.run()
end_time = datetime.datetime.now()
utils_for_tests.check_optimal_solution_status_and_sizes(
model_solution, data)
dmus = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K']
utils_for_tests.check_efficiency_scores(
dmus, [1, 0.86998617, 1, 1, 1, 1, 1, 1, 1, 0.6386574, 1],
model_solution, data)
work_book = xlwt.Workbook()
writer = XLSWriter(Parameters(), work_book, datetime.datetime.today(),
(end_time - start_time).total_seconds())
writer.write_data(model_solution)
work_book.save('tests/test_max_slacks_weakly_disp_vars_output.xls')
clean_up_pickled_files()
def model(request, data):
model = EnvelopmentModelBase(
data,
EnvelopmentModelInputOriented(
generate_upper_bound_for_efficiency_score),
DefaultConstraintCreator())
return model
def test_peel_the_onion_and_categorical(categorical_from_book):
model = EnvelopmentModelBase(categorical_from_book,
EnvelopmentModelInputOriented(
generate_upper_bound_for_efficiency_score),
DefaultConstraintCreator())
model = ModelWithCategoricalDMUs(model, 'Category')
model_solution, ranks, state = peel_the_onion_method(model)
assert state is True
clean_up_pickled_files()
def get_input_oriented_model(cls, use_super_efficiency,
non_discr_categories):
''' See base class.
'''
upper_bound_generator = cls.get_upper_bound_generator_for_env_model(
use_super_efficiency)
if non_discr_categories:
return EnvelopmentModelInputOrientedWithNonDiscVars(
non_discr_categories, upper_bound_generator)
return EnvelopmentModelInputOriented(upper_bound_generator)
def test_superefficiency_and_peel_the_onion(categorical_data):
categorical_data.add_input_category('rein')
categorical_data.add_output_category('aus')
model = EnvelopmentModelBase(
categorical_data,
EnvelopmentModelInputOriented(generate_supper_efficiency_upper_bound),
DefaultConstraintCreator())
super_efficiency_model = SupperEfficiencyModel(model)
model_solution, ranks, state = peel_the_onion_method(
super_efficiency_model)
def _create_large_model(data):
data.add_input_category('I1')
data.add_input_category('I2')
data.add_input_category('I3')
data.add_output_category('O1')
data.add_output_category('O2')
model = EnvelopmentModelBase(
data,
EnvelopmentModelInputOriented(
generate_upper_bound_for_efficiency_score),
DefaultConstraintCreator())
return model
def test_price_ratio_restrictions_env_model(data):
model = EnvelopmentModelBase(
data,
EnvelopmentModelInputOriented(
generate_upper_bound_for_efficiency_score),
DefaultConstraintCreator())
bounds = {('I1', 'I2'): (None, 0.4), ('O1', 'O2'): (0.01, None)}
model = EnvelopmentModelWithPriceRatioConstraints(model, bounds)
start_time = datetime.datetime.now()
model_solution = model.run()
end_time = datetime.datetime.now()
utils_for_tests.check_if_category_is_within_price_ratio_constraints(
model_solution, bounds)
work_book = Workbook()
writer = XLSWriter(Parameters(), work_book, datetime.datetime.today(),
(end_time - start_time).total_seconds())
writer.write_data(model_solution)
work_book.save('tests/test_price_ratio_env_output.xls')
def test_virual_restrictions_env_model(data):
model = EnvelopmentModelBase(
data,
EnvelopmentModelInputOriented(
generate_upper_bound_for_efficiency_score),
DefaultConstraintCreator())
bounds = {'I2': (0.01, 0.5)}
model = EnvelopmentModelWithVirtualWeightRestrictions(model, bounds)
start_time = datetime.datetime.now()
model_solution = model.run()
end_time = datetime.datetime.now()
utils_for_tests.check_if_category_is_within_virtual_limits(
model_solution, bounds)
work_book = Workbook()
writer = XLSWriter(Parameters(), work_book, datetime.datetime.today(),
(end_time - start_time).total_seconds())
writer.write_data(model_solution)
work_book.save('tests/test_virtual_constraints_env_output.xls')
def test_super_efficiency_with_VRS(DEA_example2_data):
data = DEA_example2_data
data.add_input_category('I1')
data.add_input_category('I2')
data.add_input_category('I3')
data.add_output_category('O1')
data.add_output_category('O2')
model = EnvelopmentModelBase(
data,
EnvelopmentModelInputOriented(generate_supper_efficiency_upper_bound),
DefaultConstraintCreator())
model = EnvelopmentModelVRSDecorator(model)
super_efficiency_model = SupperEfficiencyModel(model)
start_time = datetime.datetime.now()
solution = super_efficiency_model.run()
end_time = datetime.datetime.now()
work_book = xlwt.Workbook()
writer = XLSWriter(Parameters(), work_book, datetime.datetime.today(),
(end_time - start_time).total_seconds())
writer.write_data(solution)
work_book.save('tests/test_super_efficiency_with_VRS.xls')
