def test_Fast_with_NAN():
'''
Test if fast.analyze raise a ValueError when nan are passed in the Y values
'''
problem, model_results, _ = setup_samples()
# Should raise a ValueError type of error
with pytest.raises(ValueError):
fast.analyze(problem, model_results)
def test_fast_to_df():
params = ['x1', 'x2', 'x3']
problem = {
'num_vars':
3,
'names':
params,
'groups':
None,
'bounds': [[-3.14159265359, 3.14159265359],
[-3.14159265359, 3.14159265359],
[-3.14159265359, 3.14159265359]]
}
param_values = fast_sampler.sample(problem, 1000)
Y = Ishigami.evaluate(param_values)
Si = fast.analyze(problem, Y, print_to_console=False)
Si_df = Si.to_df()
expected_index = set(params)
assert isinstance(Si_df, pd.DataFrame), \
"FAST Si: Expected DataFrame, got {}".format(type(Si_df))
assert set(Si_df.index) == expected_index, "Incorrect index in DataFrame"
col_names = set(['S1', 'ST'])
assert set(Si_df.columns) == col_names, \
"Unexpected column names in DataFrame. Expected {}, got {}".format(
col_names, Si_df.columns)
def test_fast_to_df():
params = ['x1', 'x2', 'x3']
problem = {
'num_vars': 3,
'names': params,
'groups': None,
'bounds': [[-3.14159265359, 3.14159265359],
[-3.14159265359, 3.14159265359],
[-3.14159265359, 3.14159265359]]
}
param_values = fast_sampler.sample(problem, 1000)
Y = Ishigami.evaluate(param_values)
Si = fast.analyze(problem, Y, print_to_console=False)
Si_df = Si.to_df()
expected_index = set(params)
assert isinstance(Si_df, pd.DataFrame), \
"FAST Si: Expected DataFrame, got {}".format(type(Si_df))
assert set(Si_df.index) == expected_index, "Incorrect index in DataFrame"
col_names = set(['S1', 'ST'])
assert set(Si_df.columns) == col_names, \
"Unexpected column names in DataFrame. Expected {}, got {}".format(
col_names, Si_df.columns)
def _analyze(*args, **kwargs):
self = args[0]
M = self.getKwarg('M', kwargs)
print_to_console = kwargs.get('print_to_console', False)
return fast.analyze(self.problem, self.results, M=M,
print_to_console=print_to_console)
def test_regression_fast():
param_file = 'src/SALib/test_functions/params/Ishigami.txt'
problem = read_param_file(param_file)
param_values = fast_sampler.sample(problem, 10000)
Y = Ishigami.evaluate(param_values)
Si = fast.analyze(problem, Y, print_to_console=False)
assert_allclose(Si['S1'], [0.31, 0.44, 0.00], atol=5e-2, rtol=1e-1)
assert_allclose(Si['ST'], [0.55, 0.44, 0.24], atol=5e-2, rtol=1e-1)
def FAST_analysis(network, num_samples, prob_def):
print("Sampling via FAST sampler...")
samples = fast_sampler.sample(prob_def, num_samples)
samples = np.split(samples, samples.shape[1], axis=1)
samples = [s.squeeze() for s in samples]
values = {n: torch.tensor(s) for n, s in zip(prob_def["names"], samples)}
print("Running GrFN...")
Y = network.run(values).numpy()
print("Analyzing via FAST...")
return fast.analyze(prob_def, Y, print_to_console=True)
def test_regression_fast():
param_file = 'src/SALib/test_functions/params/Ishigami.txt'
problem = read_param_file(param_file)
param_values = fast_sampler.sample(problem, 10000)
Y = Ishigami.evaluate(param_values)
Si = fast.analyze(problem, Y, print_to_console=False)
assert_allclose(Si['S1'], [0.31, 0.44, 0.00], atol=5e-2, rtol=1e-1)
assert_allclose(Si['ST'], [0.55, 0.44, 0.24], atol=5e-2, rtol=1e-1)
def _anlzr_salib(método, problema, mstr, simul, ops_método):
'''
Parameters
----------
método: ['morris', 'fast']
líms_paráms, mapa_paráms se usan para generar el problema.
mstr: sampled data
simul: simulated model output
ops_método: dict
#{'num_levels': 8, 'grid_jump': 4}
Returns
-------
'''
if isinstance(mstr, list):
mstr = np.asarray(mstr)
if método == 'morris':
if isinstance(simul, list):
simul = np.asarray(simul)
ops = {'X': mstr, 'Y': simul, 'num_levels': 16}
ops.update(ops_método)
mor = {}
Si = morris.analyze(problema, **ops)
mor.update(
{'mu_star': {j: Si['mu_star'][i] for i, j in enumerate(problema['names'])},
'sigma': {j: Si['sigma'][i] for i, j in enumerate(problema['names'])},
# 'sum_sigma': np.sum(Si['sigma'])
})
return mor
elif método == 'fast':
ops = {'Y': simul}
fa = {}
Si = fast.analyze(problema, **ops)
fa.update({'Si': {j: Si['S1'][i] for i, j in enumerate(problema['names'])},
'ST': {j: Si['ST'][i] for i, j in enumerate(problema['names'])},
'St-Si': {j: Si['ST'][i] - Si['S1'][i] for i, j in enumerate(problema['names'])},
# 'sum_s1': np.sum(Si['S1']),
# 'sum_st': np.sum(Si['ST']),
# 'sum_st-s1': np.absolute(np.sum(Si['ST']) - np.sum(Si['S1']))
})
return fa
else:
raise ValueError(_('Algoritmo "{}" no reconocido.').format(método))
def fast_analyze(
parameters: MutableMapping[str, Distribution],
model_output: Dict[int, Dict[str, RecordTransmitter]],
harmonics: Optional[int],
) -> Dict[int, Dict[str, Any]]:
# Returns a dictionary with S1, ST, S1_conf, ST_conf and names
# (described in https://salib.readthedocs.io/en/latest/api.html)
# for each evaluation performed with a sample, i.e. a polynomial
# is evaluated with a set of sample coefficients for 10 values of x
# ie. {0: {'S1': [0.3075(x), 0.4424(y), 4.531e-27(c)], ...,
# 'names': ['x', 'y', 'z']}, 1: ...}
if len(parameters) == 0:
raise ValueError("Cannot study the sensitivity of no variables")
records = []
for transmitter_map in model_output.values():
if len(transmitter_map) > 1:
raise ValueError(
"Cannot analyze sensitivity with multiple outputs")
if len(transmitter_map) < 1:
raise ValueError("Cannot analyze sensitivity with no output")
for transmitter in transmitter_map.values():
records.append(get_event_loop().run_until_complete(
transmitter.load()))
ensemble_size = len(model_output)
if harmonics is None:
harmonics = 4
param_size = sum(dist.size for dist in parameters.values())
if ensemble_size % param_size == 0:
sample_size = int(ensemble_size / param_size)
else:
raise ValueError("The size of the model output must be "
"a multiple of the number of parameters")
record_size = len(records[0].data)
data = np.zeros([sample_size * param_size, record_size])
for i, record in enumerate(records):
for j in range(record_size):
data[i][j] = record.data[j] # type: ignore
problem = _build_salib_problem(parameters)
analysis = {}
for j in range(record_size):
analysis[j] = fast.analyze(problem, data[:, j], M=harmonics)
return analysis
def _parallel_analyze(index, method, problem, samples, data, seed):
if method == 'sobol':
result = sobol.analyze(problem,
data,
calc_second_order=True,
print_to_console=False,
seed=seed)
elif method == 'fast':
result = fast.analyze(problem, data, print_to_console=False, seed=seed)
elif method == 'rbd-fast':
result = rbd_fast.analyze(problem,
samples,
data,
print_to_console=False,
seed=seed)
elif method == 'morris':
result = morris_analyze(problem,
samples,
data,
print_to_console=False,
seed=seed)
elif method == 'delta':
result = delta.analyze(problem,
samples,
data,
print_to_console=False,
seed=seed)
elif method == 'dgsm':
result = dgsm.analyze(problem,
samples,
data,
print_to_console=False,
seed=seed)
elif method == 'frac':
result = ff_analyze(problem,
samples,
data,
second_order=True,
print_to_console=False,
seed=seed)
else:
return 0
for key in result.keys():
result[key] = result[key].tolist()
with open('{:s}.json'.format(index), 'w') as outfile:
json.dump(result, outfile)
return 0
def fast(self):
"""FAST sensitivity analysis of the objective function.
This function estimates the sensitivity with the FAST method of the
objective function with changes in the parameters using SALib:
https://salib.readthedocs.io/en/latest/api.html#fast-fourier-amplitude-sensitivity-test
Returns:
dict: sensitivity values of parameters; dict has keys 'S1' and 'ST'
"""
X, y, problem = self._sensitivity_prep()
n_sample = 2000
param_values = fast_sampler.sample(problem, n_sample)
X_s, y_s = self._closest_points(problem, X, y, param_values)
Si = fast.analyze(problem, y_s)
return Si
def analyze(self, model, num_samples=10000):
Y = model.evaluate(self.sample(num_samples=num_samples))
Sis = list([
fast.analyze(self.problem, Y[:, i], print_to_console=False)
for i in range(Y.shape[1])
])
S1s = [s['S1'] for s in Sis]
STs = [s['ST'] for s in Sis]
result_dict = {
'S1': dict(zip(self.output_names, S1s)),
'ST': dict(zip(self.output_names, STs))
}
return result_dict
def analyze(self):
"""Initiate the analysis, and stores the result at data directory.
Generates:
Analysis result at 'acbm/data/output/fast.txt'.
"""
X = fast_sampler.sample(self.problem,
self.n_samples,
M=self.M,
seed=self.seed_sample)
Y = ACBM.evaluate(X)
si = fast.analyze(self.problem, Y, M=self.M, seed=self.seed_analyze)
pickle.dump(si, open(self.path_output + 'fast.txt', 'wb'))
def _analizar(símismo, vec_res, muestra, ops):
if símismo.método == 'sobol':
return sobol.analyze(problem=símismo.problema, Y=vec_res, **ops)
elif símismo.método == 'fast':
return fast.analyze(problem=símismo.problema, Y=vec_res, **ops)
elif símismo.método == 'morris':
return morris_anlz.analyze(problem=símismo.problema, X=muestra, Y=vec_res, **ops)
elif símismo.método == 'dmim':
return delta.analyze(problem=símismo.problema, X=muestra, Y=vec_res, **ops)
elif símismo.método == 'dgsm':
return dgsm.analyze(problem=símismo.problema, X=muestra, Y=vec_res, **ops)
elif símismo.método == 'ff':
return ff_anlz.analyze(problem=símismo.problema, X=muestra, Y=vec_res, **ops)
else:
raise ValueError('Método de análisis de sensibilidad "{}" no reconocido.'.format(símismo.método))
def perform_analysis(problem, Y_list, method):
S1_dic = OrderedDict()
S1_dic['mu_TGFB'] = []
S1_dic['beta_TGFB_M_A'] = []
S1_dic['beta_TGFB_FIBRO'] = []
S1_dic['mu_MA'] = []
S1_dic['phi_MRA'] = []
S1_dic['theta_ACH'] = []
S1_dic['mu_MR'] = []
S1_dic['Pmax_MR'] = []
S1_dic['Pmin_MR'] = []
S1_dic['Keq_CH'] = []
Y_list = np.array(Y_list)
print(Y_list.shape)
print('hi')
Y_list_trans = Y_list.transpose()
total = len(Y_list_trans)
count = 0
for Y in Y_list_trans:
count += 1
if method == 'FAST':
Si = fast.analyze(problem, Y, print_to_console=True)
elif method == 'Saltelli':
Si = sobol.analyze(problem, Y)
mu_TGFB, beta_TGFB_M_A, beta_TGFB_FIBRO, mu_MA, phi_MRA, theta_ACH, mu_MR, Pmax_MR, Pmin_MR, Keq_CH = Si[
'S1'] #Si['ST']# = Si['S1']
S1_dic['mu_TGFB'].append(mu_TGFB)
S1_dic['beta_TGFB_M_A'].append(beta_TGFB_M_A)
S1_dic['beta_TGFB_FIBRO'].append(beta_TGFB_FIBRO)
S1_dic['mu_MA'].append(mu_MA)
S1_dic['phi_MRA'].append(phi_MRA)
S1_dic['theta_ACH'].append(theta_ACH)
S1_dic['mu_MR'].append(mu_MR)
S1_dic['Pmax_MR'].append(Pmax_MR)
S1_dic['Pmin_MR'].append(Pmin_MR)
S1_dic['Keq_CH'].append(Keq_CH)
print(total, count)
return pd.DataFrame(S1_dic)
def _parallel_analyze(data):
seed = int(opts['seed'])
samples = population['problem', 'samples']
problem = population['problem', 'definition']
if opts['method'] == 'sobol':
return sobol.analyze(problem,
data,
calc_second_order=True,
print_to_console=False)
elif opts['method'] == 'fast':
return fast.analyze(problem, data, print_to_console=False, seed=seed)
elif opts['method'] == 'rbd-fast':
return rbd_fast.analyze(problem,
samples,
data,
print_to_console=False,
seed=seed)
elif opts['method'] == 'morris':
return morris_analyze(problem,
samples,
data,
print_to_console=False,
seed=seed)
elif opts['method'] == 'delta':
return delta.analyze(problem,
samples,
data,
print_to_console=False,
seed=seed)
elif opts['method'] == 'dgsm':
return dgsm.analyze(problem,
samples,
data,
print_to_console=False,
seed=seed)
elif opts['method'] == 'frac':
return ff_analyze(problem,
samples,
data,
second_order=True,
print_to_console=False,
seed=seed)
else:
return 0
def salib_wrapper(problem, y_val, x, analysis_type='sobol', **kwargs):
'''
Backend wrapper for sobol, fast and delta analysis.
:meta private:
'''
if analysis_type == 'sobol':
return sobol.analyze(problem, y_val, **kwargs)
elif analysis_type == 'fast':
return fast.analyze(problem, y_val, **kwargs)
elif analysis_type == 'delta':
return delta.analyze(problem, x, y_val, **kwargs)
elif analysis_type == 'rbd-fast':
return rbd_fast.analyze(problem, x, y_val, **kwargs)
else:
raise Exception(
'Could not find analyzer. analysis_type must be sobol, fast, rbd-fast or delta.'
)
def sensiAnal(model_results, Problem):
weather = []
X = []
Y = []
for row in model_results:
weather.append(row[0])
X.append(row[1:len(row) - 2])
Y.append(row[len(row) - 1])
climate = [
'1A', '2A', '2B', '3A', '3B', '3C', '4A', '4B', '4C', '5A', '5B', '6A',
'6B', '7A', '8A'
]
S1 = [] #first-order indices
ST = [] #total-order indices
Name = []
Clim = []
for x in climate:
X_clim = []
Y_clim = []
for ind, val in enumerate(weather):
if val == x:
X_clim.append(X[ind])
Y_clim.append(Y[ind])
for row in Problem:
if row[0] == x:
problem = row[1]
if len(X_clim) > 0:
Si = fast.analyze(problem,
np.array(Y_clim),
print_to_console=False)
s1_clim = Si['S1']
st_clim = Si['ST']
name_clim = problem['names']
S1.append(s1_clim)
ST.append(st_clim)
Name.append(name_clim)
Clim.append(x)
return Clim, Name, S1, ST
def sensiAnal(model_results,Problem):
weather = []
X = []
Y = []
for row in model_results:
weather.append(row[0])
X.append(row[1:len(row)-2])
Y.append(row[len(row)-1])
climate = ['1A','2A','2B','3A','3B','3C','4A','4B','4C','5A','5B','6A','6B','7A','8A']
S1 = []#first-order indices
ST = []#total-order indices
Name = []
Clim = []
for x in climate:
X_clim = []
Y_clim = []
for ind,val in enumerate(weather):
if val == x:
X_clim.append(X[ind])
Y_clim.append(Y[ind])
for row in Problem:
if row[0] == x:
problem = row[1]
if len(X_clim) > 0:
Si = fast.analyze(problem,np.array(Y_clim),print_to_console=False)
s1_clim = Si['S1']
st_clim = Si['ST']
name_clim = problem['names']
S1.append(s1_clim)
ST.append(st_clim)
Name.append(name_clim)
Clim.append(x)
return Clim,Name,S1,ST
def sa(model, response, policy={}, method="sobol", nsamples=1000, **kwargs):
if len(model.uncertainties) == 0:
raise ValueError("no uncertainties defined in model")
problem = {
'num_vars': len(model.uncertainties),
'names': model.uncertainties.keys(),
'bounds': [[0.0, 1.0] for u in model.uncertainties],
'groups': kwargs.get("groups", None)
}
# estimate the argument N passed to the sampler that produces the requested
# number of samples
N = _predict_N(method, nsamples, problem["num_vars"], kwargs)
# generate the samples
if method == "sobol":
samples = saltelli.sample(problem, N,
**_cleanup_kwargs(saltelli.sample, kwargs))
elif method == "morris":
samples = morris_sampler.sample(
problem, N, **_cleanup_kwargs(morris_sampler.sample, kwargs))
elif method == "fast":
samples = fast_sampler.sample(
problem, N, **_cleanup_kwargs(fast_sampler.sample, kwargs))
elif method == "ff":
samples = ff_sampler.sample(
problem, **_cleanup_kwargs(ff_sampler.sample, kwargs))
elif method == "dgsm":
samples = finite_diff.sample(
problem, N, **_cleanup_kwargs(finite_diff.sample, kwargs))
elif method == "delta":
if "samples" in kwargs:
samples = kwargs["samples"]
else:
samples = latin.sample(problem, N,
**_cleanup_kwargs(latin.sample, kwargs))
# convert from samples in [0, 1] to uncertainty domain
for i, u in enumerate(model.uncertainties):
samples[:, i] = u.ppf(samples[:, i])
# run the model and collect the responses
responses = np.empty(samples.shape[0])
for i in range(samples.shape[0]):
sample = {k: v for k, v in zip(model.uncertainties.keys(), samples[i])}
responses[i] = evaluate(model, overwrite(sample, policy))[response]
# run the sensitivity analysis method
if method == "sobol":
result = sobol.analyze(problem, responses,
**_cleanup_kwargs(sobol.analyze, kwargs))
elif method == "morris":
result = morris_analyzer.analyze(
problem, samples, responses,
**_cleanup_kwargs(morris_analyzer.analyze, kwargs))
elif method == "fast":
result = fast.analyze(problem, responses,
**_cleanup_kwargs(fast.analyze, kwargs))
elif method == "ff":
result = ff_analyzer.analyze(
problem, samples, responses,
**_cleanup_kwargs(ff_analyzer.analyze, kwargs))
elif method == "dgsm":
result = dgsm.analyze(problem, samples, responses,
**_cleanup_kwargs(dgsm.analyze, kwargs))
elif method == "delta":
result = delta.analyze(problem, samples, responses,
**_cleanup_kwargs(delta.analyze, kwargs))
# convert the SALib results into a form allowing pretty printing and
# lookups using the parameter name
pretty_result = SAResult(
list(result["names"] if "names" in result else problem["names"]))
if "S1" in result:
pretty_result["S1"] = {
k: float(v)
for k, v in zip(problem["names"], result["S1"])
}
if "S1_conf" in result:
pretty_result["S1_conf"] = {
k: float(v)
for k, v in zip(problem["names"], result["S1_conf"])
}
if "ST" in result:
pretty_result["ST"] = {
k: float(v)
for k, v in zip(problem["names"], result["ST"])
}
if "ST_conf" in result:
pretty_result["ST_conf"] = {
k: float(v)
for k, v in zip(problem["names"], result["ST_conf"])
}
if "S2" in result:
pretty_result["S2"] = _S2_to_dict(result["S2"], problem)
if "S2_conf" in result:
pretty_result["S2_conf"] = _S2_to_dict(result["S2_conf"], problem)
if "delta" in result:
pretty_result["delta"] = {
k: float(v)
for k, v in zip(problem["names"], result["delta"])
}
if "delta_conf" in result:
pretty_result["delta_conf"] = {
k: float(v)
for k, v in zip(problem["names"], result["delta_conf"])
}
if "vi" in result:
pretty_result["vi"] = {
k: float(v)
for k, v in zip(problem["names"], result["vi"])
}
if "vi_std" in result:
pretty_result["vi_std"] = {
k: float(v)
for k, v in zip(problem["names"], result["vi_std"])
}
if "dgsm" in result:
pretty_result["dgsm"] = {
k: float(v)
for k, v in zip(problem["names"], result["dgsm"])
}
if "dgsm_conf" in result:
pretty_result["dgsm_conf"] = {
k: float(v)
for k, v in zip(problem["names"], result["dgsm_conf"])
}
if "mu" in result:
pretty_result["mu"] = {
k: float(v)
for k, v in zip(result["names"], result["mu"])
}
if "mu_star" in result:
pretty_result["mu_star"] = {
k: float(v)
for k, v in zip(result["names"], result["mu_star"])
}
if "mu_star_conf" in result:
pretty_result["mu_star_conf"] = {
k: float(v)
for k, v in zip(result["names"], result["mu_star_conf"])
}
if "sigma" in result:
pretty_result["sigma"] = {
k: float(v)
for k, v in zip(result["names"], result["sigma"])
}
return pretty_result
counter = counter + 1
#plt.plot([1, 2, 5, 10], probabilities)
#plt.ylabel('Probability')
#plt.yscale('log')
#plt.legend()
#plt.xlabel('Number of Stop Codons')
#plt.savefig('prob_per_stop.png')
#Sensitivity Analysis - FAST
problem = {
'num_vars':
5,
'names': [
'stRNA_binding', 'rf1_binding', 'stRNA_unbinding', 'rf1_unbinding',
'initial_codons'
],
'bounds': [[stRNA_bindings.min(),
stRNA_bindings.max()],
[rf1_bindings.min(), rf1_bindings.max()],
[stRNA_unbindings.min(),
stRNA_unbindings.max()],
[rf1_unbindings.min(),
rf1_unbindings.max()], [200., 2000.]]
}
print('FAST')
Si = fast.analyze(problem, probabilities, print_to_console=False)
print('First order indices: ' + str(Si['S1']))
print('Total order indices: ' + str(Si['ST']))
def perform_analysis(problem, Y_list, method):
S1_dic = OrderedDict()
S1_dic['beta_CHMA'] = []
S1_dic['beta_CHNA'] = []
S1_dic['theta_ACH'] = []
S1_dic['beta_MANDA'] = []
S1_dic['lamb_ITMNDN'] = []
S1_dic['alpha_ITMNDN'] = []
S1_dic['Pmax_APE'] = []
S1_dic['Pmin_APE'] = []
S1_dic['rdistress'] = []
S1_dic['w_gauss_min'] = []
S1_dic['rinduce_peak'] = []
S1_dic['rinduce'] = []
S1_dic['r_AP'] = []
S1_dic['r_ITM'] = []
S1_dic['r_ITMpeak'] = []
S1_dic['r_NDN'] = []
S1_dic['lamb_MANDN'] = []
S1_dic['lamb_MANDA'] = []
S1_dic['mu_NDA'] = []
S1_dic['Keq_CH'] = []
S1_dic['r_Nhomeo'] = []
S1_dic['Pmax_NR'] = []
Y_list = np.array(Y_list)
print(Y_list.shape)
Y_list_trans = Y_list.transpose()
total = len(Y_list_trans)
count = 0
for Y in Y_list_trans:
count += 1
if method == 'FAST':
Si = fast.analyze(problem, Y, print_to_console=True)
elif method == 'Saltelli':
Si = sobol.analyze(problem, Y)
beta_CHMA, beta_CHNA, theta_ACH, beta_MANDA, lamb_ITMNDN, alpha_ITMNDN, Pmax_APE, Pmin_APE, rdistress, \
w_gauss_min, rinduce_peak, rinduce, r_AP, r_ITM, r_ITMpeak, r_NDN, lamb_MANDN, lamb_MANDA, mu_NDA, \
Keq_CH, r_Nhomeo, Pmax_NR = Si['S1'] #Si['ST']# = Si['S1']
S1_dic['beta_CHMA'].append(beta_CHMA)
S1_dic['beta_CHNA'].append(beta_CHNA)
S1_dic['theta_ACH'].append(theta_ACH)
S1_dic['beta_MANDA'].append(beta_MANDA)
S1_dic['w_gauss_min'].append(w_gauss_min)
S1_dic['lamb_ITMNDN'].append(lamb_ITMNDN)
S1_dic['alpha_ITMNDN'].append(alpha_ITMNDN)
S1_dic['Pmax_APE'].append(Pmax_APE)
S1_dic['Pmin_APE'].append(Pmin_APE)
S1_dic['rdistress'].append(rdistress)
S1_dic['rinduce_peak'].append(rinduce_peak)
S1_dic['rinduce'].append(rinduce)
S1_dic['r_ITM'].append(r_ITM)
S1_dic['r_ITMpeak'].append(r_ITMpeak)
S1_dic['r_NDN'].append(r_NDN)
S1_dic['r_AP'].append(r_AP)
S1_dic['lamb_MANDN'].append(lamb_MANDN)
S1_dic['lamb_MANDA'].append(lamb_MANDA)
S1_dic['mu_NDA'].append(mu_NDA)
S1_dic['Keq_CH'].append(Keq_CH)
S1_dic['r_Nhomeo'].append(r_Nhomeo)
S1_dic['Pmax_NR'].append(Pmax_NR)
print(total, count)
return pd.DataFrame(S1_dic)
param_values = saltelli.sample(problem, num_steps)
Points = np.zeros([param_values.shape[0]])
for i in range(len(param_values)):
x = param_values[i]
x_dot, y_dot, z_dot = lorenz(x[0], x[1], x[2], x[3])
a = np.array((x_dot, y_dot, z_dot))
Points[i] = distance(a, start_point)
# print(Points.shape)
sensitivity = sobol.analyze(problem, Points)
print("Sobol Sensitivity S1:")
print(sensitivity["S1"])
print("Sobol Sensitivity ST:")
print(sensitivity["ST"])
# Fast analysis
fast_param_values = fast_sampler.sample(problem, num_steps)
FastPoints = np.zeros([fast_param_values.shape[0]])
for i in range(len(fast_param_values)):
x = fast_param_values[i]
x_dot, y_dot, z_dot = lorenz(x[0], x[1], x[2], x[3])
a = np.array((x_dot, y_dot, z_dot))
FastPoints[i] = distance(a, start_point)
fast_sensitivity = fast.analyze(problem, FastPoints, print_to_console=True)
Si_con = dgsm.analyze(problem,
param_values,
Y_con,
conf_level=0.95,
print_to_console=False)
f1, (ax1, ax2) = plt.subplots(2, 1, sharex=True)
SS1 = (Si_con['dgsm'][1:]) / Si['dgsm'][1:]
SS2 = (Si_con['vi'][1:]) / Si['vi'][1:]
sns.barplot(np.arange(2, 22), np.abs(SS1), ax=ax1)
sns.barplot(np.arange(2, 22), np.abs(SS2), ax=ax2)
ax1.set_title('Sdgsm')
ax2.set_title('Svi')
ax2.set_xlabel('Sensitivity')
elif method_flag == 4:
Si = fast.analyze(problem, Y, print_to_console=False)
figure_keys = {
'ax1_title': 'S1',
'ax2_title': 'ST',
'ax2_lable': 'Parameter index',
}
Si_con = fast.analyze(problem, Y_con, print_to_console=False)
f1, (ax1, ax2) = plt.subplots(2, 1, sharex=True)
SS1 = (np.array(Si_con['S1'][1:])) / np.array(Si['S1'][1:])
SS2 = (np.array(Si_con['ST'][1:])) / np.array(Si['ST'][1:])
sns.barplot(np.arange(2, 22), np.abs(SS1), ax=ax1)
sns.barplot(np.arange(2, 22), np.abs(SS2), ax=ax2)
ax1.set_title('SS1')
ax2.set_title('SST')
ax2.set_xlabel('Sensitivity')
import sys
sys.path.append('../..')
from SALib.sample import fast_sampler
from SALib.analyze import fast
from SALib.test_functions import Ishigami
import numpy as np
# Read the parameter range file and generate samples
param_file = '../../SALib/test_functions/params/Ishigami.txt'
# Generate samples
param_values = fast_sampler.sample(1000, param_file)
# Run the "model" and save the output in a text file
# This will happen offline for external models
Y = Ishigami.evaluate(param_values)
np.savetxt("model_output.txt", Y, delimiter=' ')
# Perform the sensitivity analysis using the model output
# Specify which column of the output file to analyze (zero-indexed)
Si = fast.analyze(
param_file, 'model_output.txt', column=0, print_to_console=False)
# Returns a dictionary with keys 'S1' and 'ST'
# e.g. Si['S1'] contains the first-order index for each parameter, in the
# same order as the parameter file
def sa(model, response, policy={}, method="sobol", nsamples=1000, **kwargs):
if len(model.uncertainties) == 0:
raise ValueError("no uncertainties defined in model")
problem = { 'num_vars' : len(model.uncertainties),
'names' : model.uncertainties.keys(),
'bounds' : [[0.0, 1.0] for u in model.uncertainties],
'groups' : kwargs.get("groups", None) }
# estimate the argument N passed to the sampler that produces the requested
# number of samples
N = _predict_N(method, nsamples, problem["num_vars"], kwargs)
# generate the samples
if method == "sobol":
samples = saltelli.sample(problem, N, **_cleanup_kwargs(saltelli.sample, kwargs))
elif method == "morris":
samples = morris_sampler.sample(problem, N, **_cleanup_kwargs(morris_sampler.sample, kwargs))
elif method == "fast":
samples = fast_sampler.sample(problem, N, **_cleanup_kwargs(fast_sampler.sample, kwargs))
elif method == "ff":
samples = ff_sampler.sample(problem, **_cleanup_kwargs(ff_sampler.sample, kwargs))
elif method == "dgsm":
samples = finite_diff.sample(problem, N, **_cleanup_kwargs(finite_diff.sample, kwargs))
elif method == "delta":
if "samples" in kwargs:
samples = kwargs["samples"]
else:
samples = latin.sample(problem, N, **_cleanup_kwargs(latin.sample, kwargs))
# convert from samples in [0, 1] to uncertainty domain
for i, u in enumerate(model.uncertainties):
samples[:,i] = u.ppf(samples[:,i])
# run the model and collect the responses
responses = np.empty(samples.shape[0])
for i in range(samples.shape[0]):
sample = {k : v for k, v in zip(model.uncertainties.keys(), samples[i])}
responses[i] = evaluate(model, overwrite(sample, policy))[response]
# run the sensitivity analysis method
if method == "sobol":
result = sobol.analyze(problem, responses, **_cleanup_kwargs(sobol.analyze, kwargs))
elif method == "morris":
result = morris_analyzer.analyze(problem, samples, responses, **_cleanup_kwargs(morris_analyzer.analyze, kwargs))
elif method == "fast":
result = fast.analyze(problem, responses, **_cleanup_kwargs(fast.analyze, kwargs))
elif method == "ff":
result = ff_analyzer.analyze(problem, samples, responses, **_cleanup_kwargs(ff_analyzer.analyze, kwargs))
elif method == "dgsm":
result = dgsm.analyze(problem, samples, responses, **_cleanup_kwargs(dgsm.analyze, kwargs))
elif method == "delta":
result = delta.analyze(problem, samples, responses, **_cleanup_kwargs(delta.analyze, kwargs))
# convert the SALib results into a form allowing pretty printing and
# lookups using the parameter name
pretty_result = SAResult(result["names"] if "names" in result else problem["names"])
if "S1" in result:
pretty_result["S1"] = {k : float(v) for k, v in zip(problem["names"], result["S1"])}
if "S1_conf" in result:
pretty_result["S1_conf"] = {k : float(v) for k, v in zip(problem["names"], result["S1_conf"])}
if "ST" in result:
pretty_result["ST"] = {k : float(v) for k, v in zip(problem["names"], result["ST"])}
if "ST_conf" in result:
pretty_result["ST_conf"] = {k : float(v) for k, v in zip(problem["names"], result["ST_conf"])}
if "S2" in result:
pretty_result["S2"] = _S2_to_dict(result["S2"], problem)
if "S2_conf" in result:
pretty_result["S2_conf"] = _S2_to_dict(result["S2_conf"], problem)
if "delta" in result:
pretty_result["delta"] = {k : float(v) for k, v in zip(problem["names"], result["delta"])}
if "delta_conf" in result:
pretty_result["delta_conf"] = {k : float(v) for k, v in zip(problem["names"], result["delta_conf"])}
if "vi" in result:
pretty_result["vi"] = {k : float(v) for k, v in zip(problem["names"], result["vi"])}
if "vi_std" in result:
pretty_result["vi_std"] = {k : float(v) for k, v in zip(problem["names"], result["vi_std"])}
if "dgsm" in result:
pretty_result["dgsm"] = {k : float(v) for k, v in zip(problem["names"], result["dgsm"])}
if "dgsm_conf" in result:
pretty_result["dgsm_conf"] = {k : float(v) for k, v in zip(problem["names"], result["dgsm_conf"])}
if "mu" in result:
pretty_result["mu"] = {k : float(v) for k, v in zip(result["names"], result["mu"])}
if "mu_star" in result:
pretty_result["mu_star"] = {k : float(v) for k, v in zip(result["names"], result["mu_star"])}
if "mu_star_conf" in result:
pretty_result["mu_star_conf"] = {k : float(v) for k, v in zip(result["names"], result["mu_star_conf"])}
if "sigma" in result:
pretty_result["sigma"] = {k : float(v) for k, v in zip(result["names"], result["sigma"])}
return pretty_result
def analyze_fast(self):
# FAST - Fourier Amplitude Sensitivity Test
return fast.analyze(self.sa_problem,
self.samples_y,
print_to_console=self.options["print_to_console"])
import sys
sys.path.append('../..')
from SALib.sample import fast_sampler
from SALib.analyze import fast
from SALib.test_functions import Ishigami
import numpy as np
# Read the parameter range file and generate samples
param_file = '../../SALib/test_functions/params/Ishigami.txt'
# Generate samples
param_values = fast_sampler.sample(1000, param_file)
# Run the "model" and save the output in a text file
# This will happen offline for external models
Y = Ishigami.evaluate(param_values)
np.savetxt("model_output.txt", Y, delimiter=' ')
# Perform the sensitivity analysis using the model output
# Specify which column of the output file to analyze (zero-indexed)
Si = fast.analyze(param_file,
'model_output.txt',
column=0,
print_to_console=False)
#Returns a dictionary with keys 'S1' and 'ST'
# e.g. Si['S1'] contains the first-order index for each parameter, in the same order as the parameter file
# Write the output as a dataframe and into a file
saOutputDF = saOutput.to_df()
fnOutletSAOutput_Mu = os.path.join(fdSA, "oltSA_{}_{}.txt".format(outLetNo, sampleMethod))
saOutputDF.to_csv(fnOutletSAOutput_Mu)
elif ctrlSetting["saMethod"] == 3: # For FAST method
# SALib.analyze.fast.analyze(problem,
# Y, M=4, num_resamples=100,
# conf_level=0.95, print_to_console=False, seed=None)
# Returns a dictionary with keys ‘S1’ and ‘ST’,
# where each entry is a list of size D (the number of parameters)
# containing the indices in the same order as the parameter file.
saOutput = fast.analyze(parmForSA,
outLetAvgAnnList[outLetNo],
M=4,
num_resamples=100,
conf_level=0.95,
print_to_console = False)
# Write the output as a dataframe and into a file
saOutputDF = saOutput.to_df()
fnOutletSAOutput_Fast = os.path.join(fdSA, "oltSATotal_{}_{}.txt".format(outLetNo, sampleMethod))
saOutputDF.to_csv(fnOutletSAOutput_Fast)
calStatTime = datetime.datetime.now(timeZone)
print("Time for calculating statistics: {}; Total Time: {}". format(
calStatTime - runEndTime,
calStatTime - startTime))
print("=================================================================")
# End of for loop for total runs
elif method.lower() in ['sobol']:
param_values = saltelli.sample(problem, N_samples) #For Sobol Method
print("Sobol")
#Inputs are prob,N_Yrs,Tropp,PT_d,PT_f,C_Vant,PTopp,inf,v,R,A_m,L_m,Mpv,g,MW_NaCl,csv_name
#Tropp = 1 = transmission, 0 = no transmission
#PTopp: 0 - no pretreatment, 1 - Draw Pretreatment, 2 = Feed pretreatment, 3 = feed and draw pretreatment
Test = pse.comboUSA(param_values, N_Yrs, 0, Pt['MF'], Pt['MF'], C_Vant, 2, inf,
v, R, M_geometry, g, MW_NaCl, csv_title_output)
#%%#Run Analysis###############################################################
Y = Test[
'PV_net($)'].values #Currently, Y is set for Net Present Value. Can be changed as needed
if method.lower() in ['fast']:
Si = fast.analyze(problem, Y) #For Fourier Amplitude Sensitivity Test
elif method.lower() in ['rbd']:
Si = rbd_fast.analyze(problem, Y, param_values) #For RBD-FAST Method
elif method.lower() in ['sobol']:
Si = sobol.analyze(problem, Y) #For Sobol Method
#Type: input the analysis type, e.g. "sobol"
#Si = pse.SA_indices(problem,Si,Y,method,csv_title_SI)
csv_title_SI_UC = "".join(
(csv_title_SI,
'_PV_net')) #Configured For net present value - change as needed
Si_Var = pse.SA_indices(problem, Si, 'PV_net($)', method, csv_title_SI_UC,
Notes, N_samples)
#Placed at end so that files not unnecessarily generated for failed tests
sys_in = pse.SAin(problem, param_values, csv_title_input)
import sys
sys.path.append('../..')
from SALib.analyze import fast
from SALib.sample import fast_sampler
from SALib.test_functions import Ishigami
from SALib.util import read_param_file
# Read the parameter range file and generate samples
problem = read_param_file('../../src/SALib/test_functions/params/Ishigami.txt')
# Generate samples
param_values = fast_sampler.sample(problem, 1000)
# Run the "model" and save the output in a text file
# This will happen offline for external models
Y = Ishigami.evaluate(param_values)
# Perform the sensitivity analysis using the model output
# Specify which column of the output file to analyze (zero-indexed)
Si = fast.analyze(problem, Y, print_to_console=False)
# Returns a dictionary with keys 'S1' and 'ST'
# e.g. Si['S1'] contains the first-order index for each parameter, in the
# same order as the parameter file
def fast_analyze(
parameters: MutableMapping[str, Distribution],
model_output: Dict[int, Dict[str, RecordTransmitter]],
harmonics: Optional[int],
) -> Dict[int, Dict[str, Any]]:
"""
Perform a sensitivity analysis of parameters for a given model output.
The result of the sensitivity analysis is presented as a
dictionary with S1, ST, S1_conf, ST_conf and names
(described in https://salib.readthedocs.io/en/latest/api.html)
for each evaluation performed with a sample, i.e. a polynomial
is evaluated with a set of sample coefficients for 10 values of ``x``
ie. ``{0: {'S1': [0.3075(x), 0.4424(y), 4.531e-27(z)], ...,
'names': ['x', 'y', 'z']}, 1: ...}``
"""
# pylint: disable=too-many-branches
if len(parameters) == 0:
raise ValueError("Cannot study the sensitivity of no variables")
records = []
for transmitter_map in model_output.values():
if len(transmitter_map) > 1:
raise ValueError(
"Cannot analyze sensitivity with multiple outputs")
if len(transmitter_map) < 1:
raise ValueError("Cannot analyze sensitivity with no output")
for transmitter in transmitter_map.values():
records.append(get_event_loop().run_until_complete(
transmitter.load()))
ensemble_size = len(model_output)
if harmonics is None:
harmonics = 4
param_size = sum(dist.size for dist in parameters.values())
if ensemble_size % param_size == 0:
sample_size = int(ensemble_size / param_size)
else:
raise ValueError("The size of the model output must be "
"a multiple of the number of parameters")
assert (len(set(record.record_type for record in records)) == 1
), "Bug: Requires homogeneous model output records"
assert records[0].record_type in (
RecordType.LIST_FLOAT,
RecordType.SCALAR_FLOAT,
), "Bug: Model output must be scalar or lists"
if records[0].record_type in (RecordType.LIST_FLOAT):
record_size = len(records[0].data) # type: ignore
data = np.zeros([sample_size * param_size, record_size])
for i, record in enumerate(records):
for j in range(record_size):
data[i][j] = record.data[j] # type: ignore
elif records[0].record_type in (RecordType.SCALAR_FLOAT):
record_size = 1
data = np.zeros([sample_size * param_size, record_size])
for i, record in enumerate(records):
data[i][0] = record.data
problem = _build_salib_problem(parameters)
analysis = {}
for j in range(record_size):
analysis[j] = fast.analyze(problem, data[:, j], M=harmonics)
return analysis
for j in range(len(fast_param_values)):
x = fast_param_values[j]
xs = np.empty(num_steps + 1)
ys = np.empty(num_steps + 1)
zs = np.empty(num_steps + 1)
xs[0], ys[0], zs[0] = (x[0], x[1], x[2])
for i in range(num_steps):
x_dot, y_dot, z_dot = lorenz(xs[i], ys[i], zs[i], x[3])
xs[i + 1] = xs[i] + (x_dot * dt)
ys[i + 1] = ys[i] + (y_dot * dt)
zs[i + 1] = zs[i] + (z_dot * dt)
a = distance(np.array((x_dot, y_dot, z_dot)), Points[i])
FastPoints.append(a)
fast_sensitivity = fast.analyze(problem, np.asarray(FastPoints))
print("Fast Sensitivity Analysis: ")
print(fast_sensitivity)
# for j in range(morris_param_values):
# x = morris_param_values[j]
# xs = np.empty(num_steps + 1)
# ys = np.empty(num_steps + 1)
# zs = np.empty(num_steps + 1)
# xs[0], ys[0], zs[0] = (x[0], x[1], x[2])
# for i in range(num_steps):
# x_dot, y_dot, z_dot = lorenz(xs[i], ys[i], zs[i], x[3])
# xs[i + 1] = xs[i] + (x_dot * dt)
# ys[i + 1] = ys[i] + (y_dot * dt)
# zs[i + 1] = zs[i] + (z_dot * dt)
# a = distance(np.array((x_dot, y_dot, z_dot)), Points[i])
def cycle_3_sensitivity(parameters,
exponential_level,
parameter_base_values,
cycles=None,
verbose=False):
if cycles is None:
cycles = [3]
bounds = [[-exponential_level, exponential_level]] * len(parameters)
problem = {
'num_vars': len(parameters),
'names': parameters,
'bounds': bounds
}
N = 1000
param_exponents = fast_sampler.sample(problem, N)
t = np.linspace(0, 180, 1801)
Y = np.zeros([param_exponents.shape[0], t.shape[0]])
if 3 in cycles:
for i, X in enumerate(param_exponents):
if verbose:
print('Solving Equation', i + 1, '/', len(param_exponents))
param_values = np.asarray(parameter_base_values) * np.power(10, X)
Y[i] = evaluate_model(param_values, t, 3)
sensitivities1_3cycles = [None] * len(t)
sensitivitiesT_3cycles = [None] * len(t)
for i in range(0, len(t)):
if verbose:
print('Analysing Sensitivities at time', t[i], '/', t[-1])
Si = fast.analyze(problem, Y[:, i])
sensitivities1_3cycles[i] = Si['S1']
sensitivitiesT_3cycles[i] = Si['ST']
for i in range(0, len(parameters)):
plt.plot(t[:],
np.asarray(sensitivities1_3cycles)[:, i],
label=parameters[i])
plt.xlabel('t')
plt.ylabel('Sensitivity')
plt.savefig('images/Sensitivity1_3enzymes.pdf')
plt.show()
print('First Sensitivity peaks for 3 cycles:')
for i in range(0, len(parameters)):
print('\t', parameters[i], 'peaks:')
peak_list, _ = find_peaks(
np.asarray(sensitivities1_3cycles)[100:, i])
peak_list = np.sort(peak_list)
for peak in peak_list:
print('\t\t at t =', t[peak], 'for a sensitivity of',
np.asarray(sensitivities1_3cycles)[peak, i])
for i in range(0, len(parameters)):
plt.plot(t[:],
np.asarray(sensitivitiesT_3cycles)[:, i],
label=parameters[i])
plt.xlabel('t')
plt.ylabel('Sensitivity')
plt.savefig('images/SensitivityT_3enzymes.pdf')
plt.show()
print('Total Sensitivity peaks for 3 cycles:')
for i in range(0, len(parameters)):
print('\t', parameters[i], 'peaks:')
peak_list, _ = find_peaks(
np.asarray(sensitivitiesT_3cycles)[100:, i])
peak_list = np.sort(peak_list)
for peak in peak_list:
print('\t\t at t =', t[peak], 'for a sensitivity of',
np.asarray(sensitivitiesT_3cycles)[peak, i])
for i in range(0, len(parameters)):
plt.plot(t[:],
np.asarray(sensitivities1_3cycles)[:, i] /
max(np.asarray(sensitivities1_3cycles)[1:, i]),
label=parameters[i])
plt.xlabel('t')
plt.ylabel('sensitivity')
plt.yticks([])
plt.savefig('images/SensitivityScaled1_3enzymes.pdf')
plt.show()
if 4 in cycles:
for i, X in enumerate(param_exponents):
if verbose:
print('Solving Equation', i + 1, '/', len(param_exponents))
param_values = np.asarray(parameter_base_values) * np.power(10, X)
Y[i] = evaluate_model(param_values, t, 4)
sensitivities1_4cycles = [None] * len(t)
sensitivitiesT_4cycles = [None] * len(t)
for i in range(0, len(t)):
# print('Analysing Sensitivities at time', t[i], '/', t[-1])
Si = fast.analyze(problem, Y[:, i])
sensitivities1_4cycles[i] = Si['S1']
sensitivitiesT_4cycles[i] = Si['ST']
for i in range(0, len(parameters)):
plt.plot(t[:],
np.asarray(sensitivities1_4cycles)[:, i],
label=parameters[i])
plt.xlabel('t')
plt.ylabel('Sensitivity')
plt.savefig('images/Sensitivity1_4enzymes.pdf')
plt.show()
print('First Sensitivity peaks for 4 cycles:')
for i in range(0, len(parameters)):
print('\t', parameters[i], 'peaks:')
peak_list, _ = find_peaks(
np.asarray(sensitivities1_4cycles)[100:, i])
peak_list = np.sort(peak_list)
for peak in peak_list:
print('\t\t at t =', t[peak], 'for a sensitivity of',
np.asarray(sensitivities1_4cycles)[peak, i])
for i in range(0, len(parameters)):
plt.plot(t[:],
np.asarray(sensitivitiesT_4cycles)[:, i],
label=parameters[i])
plt.xlabel('t')
plt.ylabel('Sensitivity 4 cycle')
plt.savefig('images/SensitivityT_4enzymes.pdf')
plt.show()
print('Total Sensitivity peaks for 4 cycles:')
for i in range(0, len(parameters)):
print('\t', parameters[i], 'peaks:')
peak_list, _ = find_peaks(
np.asarray(sensitivitiesT_4cycles)[100:, i])
peak_list = np.sort(peak_list)
for peak in peak_list:
print('\t\t at t =', t[peak], 'for a sensitivity of',
np.asarray(sensitivitiesT_4cycles)[peak, i])
for i in range(0, len(parameters)):
plt.plot(t[:],
np.asarray(sensitivities1_4cycles)[:, i] /
max(np.asarray(sensitivities1_4cycles)[1:, i]),
label=parameters[i])
plt.xlabel('t')
plt.ylabel('sensitivity')
plt.yticks([])
plt.savefig('images/SensitivityScaled1_4enzymes.pdf')
plt.show()
if 2 in cycles:
t = np.linspace(0, 180, 1801)
Y = np.zeros([param_exponents.shape[0], t.shape[0]])
for i, X in enumerate(param_exponents):
if verbose:
print('Solving Equation', i + 1, '/', len(param_exponents))
param_values = np.asarray(parameter_base_values) * np.power(10, X)
Y[i] = evaluate_model(param_values, t, 2)
sensitivities1_2cycles = [None] * len(t)
sensitivitiesT_2cycles = [None] * len(t)
for i in range(0, len(t)):
# print('Analysing Sensitivities at time', t[i], '/', t[-1])
Si = fast.analyze(problem, Y[:, i])
sensitivities1_2cycles[i] = Si['S1']
sensitivitiesT_2cycles[i] = Si['ST']
for i in range(0, len(parameters)):
plt.plot(t[:],
np.asarray(sensitivities1_2cycles)[:, i],
label=parameters[i])
plt.xlabel('t')
plt.ylabel('Sensitivity')
plt.savefig('images/Sensitivity1_2enzymes.pdf')
plt.show()
print('First Sensitivity peaks for 2 cycles:')
for i in range(0, len(parameters)):
print('\t', parameters[i], 'peaks:')
peak_list, _ = find_peaks(
np.asarray(sensitivities1_2cycles)[100:, i])
peak_list = np.sort(peak_list)
for peak in peak_list:
print('\t\t at t =', t[peak], 'for a sensitivity of',
np.asarray(sensitivities1_2cycles)[peak, i])
for i in range(0, len(parameters)):
plt.plot(t[:],
np.asarray(sensitivitiesT_2cycles)[:, i],
label=parameters[i])
plt.xlabel('t')
plt.ylabel('Sensitivity')
plt.savefig('images/SensitivityT_2enzymes.pdf')
plt.show()
print('Total Sensitivity peaks for 2 cycles:')
for i in range(0, len(parameters)):
print('\t', parameters[i], 'peaks:')
peak_list, _ = find_peaks(
np.asarray(sensitivitiesT_2cycles)[100:, i])
peak_list = np.sort(peak_list)
for peak in peak_list:
print('\t\t at t =', t[peak], 'for a sensitivity of',
np.asarray(sensitivitiesT_2cycles)[peak, i])
print(np.asarray(sensitivities1_2cycles)[:, 0])
for i in range(0, len(parameters)):
plt.plot(t[:],
np.asarray(sensitivities1_2cycles)[:, i] /
max(np.asarray(sensitivities1_2cycles)[1:, i]),
label=parameters[i])
plt.legend(loc='center right')
plt.xlabel('t')
plt.ylabel('sensitivity')
plt.yticks([])
plt.savefig('images/SensitivityScaled1_2enzymes.pdf')
plt.show()
def run(self,
input_ids=None,
output_ids=None,
method=None,
calc_second_order=None,
conf_level=None,
**kwargs):
self._update_parameters(method, calc_second_order, conf_level)
self.other_parameters = kwargs
if input_ids is None:
input_ids = range(self.n_inputs)
self.problem = {
"num_vars": len(input_ids),
"names": np.array(self.input_names)[input_ids].tolist(),
"bounds": np.array(self.input_bounds)[input_ids].tolist()
}
if output_ids is None:
output_ids = range(self.n_outputs)
n_outputs = len(output_ids)
if self.method.lower() == "sobol":
self.logger.warning(
"'sobol' method requires 'saltelli' sampling scheme!")
# Additional keyword parameters and their defaults:
# calc_second_order (bool): Calculate second-order sensitivities (default True)
# num_resamples (int): The number of resamples used to compute the confidence intervals (default 1000)
# conf_level (float): The confidence interval level (default 0.95)
# print_to_console (bool): Print results directly to console (default False)
# parallel: False,
# n_processors: None
self.analyzer = lambda output: sobol.analyze(
self.problem,
output,
calc_second_order=self.calc_second_order,
conf_level=self.conf_level,
num_resamples=self.other_parameters.get("num_resamples", 1000),
parallel=self.other_parameters.get("parallel", False),
n_processors=self.other_parameters.get("n_processors", None),
print_to_console=self.other_parameters.get(
"print_to_console", False))
elif np.in1d(self.method.lower(), ["latin", "delta"]):
self.logger.warning(
"'latin' sampling scheme is recommended for 'delta' method!")
# Additional keyword parameters and their defaults:
# num_resamples (int): The number of resamples used to compute the confidence intervals (default 1000)
# conf_level (float): The confidence interval level (default 0.95)
# print_to_console (bool): Print results directly to console (default False)
self.analyzer = lambda output: delta.analyze(
self.problem,
self.input_samples[:, input_ids],
output,
conf_level=self.conf_level,
num_resamples=self.other_parameters.get("num_resamples", 1000),
print_to_console=self.other_parameters.get(
"print_to_console", False))
elif np.in1d(self.method.lower(), ["fast", "fast_sampler"]):
self.logger.warning(
"'fast' method requires 'fast_sampler' sampling scheme!")
# Additional keyword parameters and their defaults:
# M (int): The interference parameter,
# i.e., the number of harmonics to sum in the Fourier series decomposition (default 4)
# print_to_console (bool): Print results directly to console (default False)
self.analyzer = lambda output: fast.analyze(
self.problem,
output,
M=self.other_parameters.get("M", 4),
print_to_console=self.other_parameters.get(
"print_to_console", False))
elif np.in1d(self.method.lower(), ["ff", "fractional_factorial"]):
# Additional keyword parameters and their defaults:
# second_order (bool, default=False): Include interaction effects
# print_to_console (bool, default=False): Print results directly to console
self.logger.warning(
"'fractional_factorial' method requires 'fractional_factorial' sampling scheme!"
)
self.analyzer = lambda output: ff.analyze(
self.problem,
self.input_samples[:, input_ids],
output,
calc_second_order=self.calc_second_order,
conf_level=self.conf_level,
num_resamples=self.other_parameters.get("num_resamples", 1000),
print_to_console=self.other_parameters.get(
"print_to_console", False))
elif self.method.lower().lower() == "morris":
self.logger.warning(
"'morris' method requires 'morris' sampling scheme!")
# Additional keyword parameters and their defaults:
# num_resamples (int): The number of resamples used to compute the confidence intervals (default 1000)
# conf_level (float): The confidence interval level (default 0.95)
# print_to_console (bool): Print results directly to console (default False)
# grid_jump (int): The grid jump size, must be identical to the value passed to
# SALib.sample.morris.sample() (default 2)
# num_levels (int): The number of grid levels, must be identical to the value passed to
# SALib.sample.morris (default 4)
self.analyzer = lambda output: morris.analyze(
self.problem,
self.input_samples[:, input_ids],
output,
conf_level=self.conf_level,
grid_jump=self.other_parameters.get("grid_jump", 2),
num_levels=self.other_parameters.get("num_levels", 4),
num_resamples=self.other_parameters.get("num_resamples", 1000),
print_to_console=self.other_parameters.get(
"print_to_console", False))
elif self.method.lower() == "dgsm":
# num_resamples (int): The number of resamples used to compute the confidence intervals (default 1000)
# conf_level (float): The confidence interval level (default 0.95)
# print_to_console (bool): Print results directly to console (default False)
self.analyzer = lambda output: dgsm.analyze(
self.problem,
self.input_samples[:, input_ids],
output,
conf_level=self.conf_level,
num_resamples=self.other_parameters.get("num_resamples", 1000),
print_to_console=self.other_parameters.get(
"print_to_console", False))
else:
raise_value_error("Method " + str(self.method) +
" is not one of the available methods " +
str(METHODS) + " !")
output_names = []
results = []
for io in output_ids:
output_names.append(self.output_names[io])
results.append(self.analyzer(self.output_values[:, io]))
# TODO: Adjust list_of_dicts_to_dicts_of_ndarrays to handle ndarray concatenation
results = list_of_dicts_to_dicts_of_ndarrays(results)
results.update({"output_names": output_names})
return results
# load problem definition
with open(f"{txtinout}/sens_def.stb", "rb") as f:
sens_def = pickle.load(f)
# Perform analysis
if sensitivity_method == "RBD_FAST":
with open(f"{txtinout}/sample_def.stb", "rb") as f:
sample = pickle.load(f)
Si = rbd_fast.analyze(sens_def,
sample,
par_performance,
print_to_console=True)
if sensitivity_method == "DMIM":
with open(f"{txtinout}/sample_def.stb", "rb") as f:
sample = pickle.load(f)
Si = delta.analyze(sens_def,
sample,
par_performance,
print_to_console=True)
if sensitivity_method == "FAST":
Si = fast.analyze(sens_def, par_performance, print_to_console=True)
if sensitivity_method == "sobol":
Si = sobol.analyze(sens_def, par_performance, print_to_console=False)
# Save the first-order sensitivity indices
numpy.savetxt(f"{txtinout}/s1_sensitivity.stb",
Si['S1'],
delimiter=",",
newline="\n")
# numpy.savetxt(f"{txtinout}/s2_sensitivity.stb", Si['S2'], delimiter=",", newline="\n")
problem = {
'num_vars':
12,
'names': ['b3', 'D', 'F', 'f', 'n', 'P', 'p', 'R3', 'V', 'Ad', 'k', 'N'],
'bounds': [[6000, 10000], [540, 900], [18.75, 31.25], [2.25, 3.75],
[15, 25], [810, 1350], [270, 450], [93750000, 156250000],
[1.69925485921, 2.83209143201], [0.15, 0.25],
[0.000375, 0.000625], [375, 625]]
}
param_values = fast_sampler.sample(problem, 100)
Y = np.zeros(param_values.shape[0])
for i, vals in enumerate(param_values):
X = Simulation(contactRadius=vals[0]**(1 / 3),
numDCells=int(vals[1]),
freePathMean=vals[2],
freePathStDev=vals[3],
tCellActivationThreshold=int(vals[4]),
firstDCArrival=vals[5],
DCArrivalDuration=vals[6],
radius=vals[7]**(1 / 3),
tGammaShape=vals[8],
cogAgInDermis=vals[9],
antigenDecayRate=vals[10],
numAntigenInContactArea=int(vals[11]))
Y[i] = X.simulate()
Si = fast.analyze(problem, Y)
log = open("SensitivityAnalysis.log", "a")
sys.stdout = log
print(Si)
