def test_confidenceintervals(self):
# NOTE: stata rounds residuals (at least) to sig digits so approx_equal
conf1 = self.res1.conf_int()
conf2 = self.res2.conf_int()
for i in range(len(conf1)):
assert_approx_equal(conf1[i][0], conf2[i][0], self.decimal_confidenceintervals)
assert_approx_equal(conf1[i][1], conf2[i][1], self.decimal_confidenceintervals)
def test_masked_background():
data = 0.1 * np.ones((6,6))
data[1,1] = 1.
data[4,1] = 1.
data[1,4] = 1.
data[4,4] = 1.
mask = np.zeros((6,6), dtype=np.bool)
# Background array without mask
sky = sep.Background(data, bw=3, bh=3, fw=1, fh=1)
bkg1 = sky.back()
# Background array with all False mask
sky = sep.Background(data, mask=mask, bw=3, bh=3, fw=1, fh=1)
bkg2 = sky.back()
# All False mask should be the same
assert_allclose(bkg1, bkg2)
# Masking high pixels should give a flat background
mask[1, 1] = True
mask[4, 1] = True
mask[1, 4] = True
mask[4, 4] = True
sky = sep.Background(data, mask=mask, bw=3, bh=3, fw=1, fh=1)
assert_approx_equal(sky.globalback, 0.1)
assert_allclose(sky.back(), 0.1 * np.ones((6, 6)))
def test_HC0_errors(self):
# They are split up because the copied results do not have any
# DECIMAL_4 places for the last place.
assert_almost_equal(self.res1.HC0_se[:-1],
self.res2.HC0_se[:-1], DECIMAL_4)
assert_approx_equal(np.round(self.res1.HC0_se[-1]),
self.res2.HC0_se[-1])
def test_tica_score_1():
X = random.randn(100, 5)
for n in range(1, 5):
tica = tICA(n_components=n, shrinkage=0)
tica.fit([X])
assert_approx_equal(tica.score([X]), tica.eigenvalues_.sum())
assert_approx_equal(tica.score([X]), tica.score_)
def test_dec2dec():
"""Test dec2dec against astropy conversion"""
# Test against the astropy calculations
for dec in ['+14:21:45.003', '-99 04 22', '-00 01 23.456', '00 01']:
ans = at.dec2dec(dec)
desired = Angle(dec, unit=u.degree).degree
assert_approx_equal(ans, desired, err_msg="{0} != {1}".format(ans, desired))
def test_symmetry(self):
# Test that a basic V-cycle yields a symmetric linear operator. Common
# reasons for failure are problems with using the same rho for the
# pres/post-smoothers and using the same block_D_inv for
# pre/post-smoothers.
n = 500
A = poisson((n,), format='csr')
smoothers = [('gauss_seidel', {'sweep': 'symmetric'}),
('schwarz', {'sweep': 'symmetric'}),
('block_gauss_seidel', {'sweep': 'symmetric'}),
'jacobi', 'block_jacobi']
Bs = [np.ones((n, 1)),
sp.hstack((np.ones((n, 1)),
np.arange(1, n + 1, dtype='float').reshape(-1, 1)))]
for smoother in smoothers:
for B in Bs:
ml = rootnode_solver(A, B, max_coarse=10,
presmoother=smoother,
postsmoother=smoother)
P = ml.aspreconditioner()
x = sp.rand(n,)
y = sp.rand(n,)
assert_approx_equal(np.dot(P * x, y), np.dot(x, P * y))
def test_cuboid(self):
self.geo.add_model(propname='throat.perimeter',
model=mods.cuboid,
regen_mode='normal')
a = np.array([0.4])
b = np.unique(self.geo['throat.perimeter'])
assert_approx_equal(a, b)
def test_normalization(self):
# set up
x = arange(12).reshape((3,4))
result = analysis.discrete_trunc_t_logpdf(x, 4, range(12))
# make sure normalized
assert_approx_equal(sum(exp(result)), 1)
def test_create_Background_dict_1(self):
# name of file in tests directory
sample_background_1 = "sample_background_data.csv"
# joins absolute path of tests directory with "sample_background_data.csv"
sample_background_1 = os.path.join(os.path.dirname(os.path.abspath(__file__)),sample_background_1)
twit = Twords()
twit.background_path = sample_background_1
twit.create_Background_dict()
# read in sample background data manually to compare
def read_data(data):
with open(data, 'r') as f:
data = [row for row in csv.reader(f.read().splitlines())]
return data
background_data = read_data(sample_background_1)
background_data = background_data[1:]
background_dict = {unicode(line[0]): (float(line[2]), int(line[1]))
for line in background_data}
for key in background_dict.keys():
# compare frequency rate - a float
assert_approx_equal(background_dict[key][0], twit.background_dict[key][0], 10)
# compare occurrences - an integer
assert background_dict[key][1] == twit.background_dict[key][1]
def test_circle(self):
self.geo.add_model(propname='pore.volume',
model=mods.circle,
regen_mode='normal')
a = np.array([3.14159265/4*1.05**2])
b = np.unique(self.geo['pore.volume'])
assert_approx_equal(a, b)
def test_square(self):
self.geo.add_model(propname='pore.volume',
model=mods.square,
regen_mode='normal')
a = np.array([1.0*1.05**2])
b = np.unique(self.geo['pore.volume'])
assert_approx_equal(a, b)
def test_del_operate_on_gaussian_returns_s_orbital_2(self):
primitive_gaussian = PrimitiveBasis(0.15432897, 3.42525091, (0, 0, 0.7316), (0, 0, 0))
array = PrimitiveBasisFactory.del_operator(primitive_gaussian)
testing.assert_approx_equal(array[1].contraction, -23.46468759, 7)
self.assertEquals(array[1].exponent, 3.42525091)
self.assertEquals(array[1].integral_exponents, (2, 0, 0))
self.assertEquals(array[1].coordinates, (0, 0, 0.7316))
def check_We_model(D, rho_gas, Q_gas, mu_gas, sigma_gas, rho_oil, Q_oil,
mu_oil, sigma_oil, rho, de_gas, de_oil):
"""
Check the solution for a modified We-number model
"""
# Get the mass fluxes of gas and oil
md_gas = Q_gas * rho_gas
md_oil = Q_oil * rho_oil
# Compute the sizes from the model
d50_gas, d50_oil = sintef.modified_We_model(D, rho_gas, md_gas, mu_gas,
sigma_gas, rho_oil, md_oil, mu_oil, sigma_oil, rho)
# Check the model result
assert d50_gas == de_gas
if d50_gas:
assert_approx_equal(d50_gas, de_gas, significant=6)
else:
assert d50_gas == None
if d50_oil:
assert_approx_equal(d50_oil, de_oil, significant=6)
else:
assert d50_oil == None
def __init__(self, distr):
self.total = distr.old_total
self.context = distr.context
probs = distr.values()
assert_approx_equal(sum(probs), 1.)
self.entropy = -1. * sum([p * np.log(p) for p in probs])
def case(chan1, chan2, expected, significant=4):
# We again take a generous tolerance so that we don't kill off
# SCS solvers.
assert_approx_equal(
dnorm(chan1, chan2), expected,
significant=significant
)
def test_normalize(self):
# Test normalize option of Lomb-Scarge.
# Input parameters
ampl = 2.
w = 1.
phi = 0.5 * np.pi
nin = 100
nout = 1000
p = 0.7 # Fraction of points to select
# Randomly select a fraction of an array with timesteps
np.random.seed(2353425)
r = np.random.rand(nin)
t = np.linspace(0.01*np.pi, 10.*np.pi, nin)[r >= p]
# Plot a sine wave for the selected times
x = ampl * np.sin(w*t + phi)
# Define the array of frequencies for which to compute the periodogram
f = np.linspace(0.01, 10., nout)
# Calculate Lomb-Scargle periodogram
pgram = lombscargle(t, x, f)
pgram2 = lombscargle(t, x, f, normalize=True)
# check if normalization works as expected
assert_allclose(pgram * 2 / np.dot(x, x), pgram2)
assert_approx_equal(np.max(pgram2), 1.0, significant=2)
def get_profile(data, z_col, z_start, p_col, P, z_min, z_max, nr, nc):
"""
Run the ambient.extract_profile function and test that the data are
correctly parsed per the inputs given above.
"""
# Apply the profile extraction function
prof_data = ambient.extract_profile(data, z_col=z_col, z_start=z_start,
p_col=p_col, P_atm=P)
# Check that the returned profile extends to the free surface
assert prof_data[0,z_col] == 0.0
# Check that the profile is clipped at the expected depths
assert_approx_equal(prof_data[1,z_col], z_min, significant = 6)
assert_approx_equal(prof_data[-1,z_col], z_max, significant = 6)
# Check that the returned profile is the right shape and data type
assert prof_data.shape[0] == nr
if nc is not None:
assert prof_data.shape[1] == nc
assert isinstance(prof_data, np.ndarray)
# Check the that returned profile is in ascending order
for i in range(1, prof_data.shape[0]):
assert prof_data[i,z_col] > prof_data[i-1,z_col]
# Send back the extracted profile
return prof_data
def test_modelparams_obj():
"""
Test the behavior of the `ModelParams` object
Test the instantiation and attribute data for the `ModelParams object of
the `stratified_plume_model` module.
"""
# Get the ambient CTD data
profile = get_profile()
# Initialize the ModelParams object
p = stratified_plume_model.ModelParams(profile)
# Check if the attributes are set correctly
assert_approx_equal(p.rho_r, 1031.035855535142, significant=6)
assert p.alpha_1 == 0.055
assert p.alpha_2 == 0.110
assert p.alpha_3 == 0.110
assert p.lambda_2 == 1.00
assert p.epsilon == 0.015
assert p.qdis_ic == 0.1
assert p.c1 == 0.
assert p.c2 == 1.
assert p.fe == 0.1
assert p.gamma_i == 1.10
assert p.gamma_o == 1.10
assert p.Fr_0 == 1.6
assert p.Fro_0 == 0.1
assert p.nwidths == 1
assert p.naverage == 1
assert p.g == 9.81
assert p.Ru == 8.314510
def test_cylinder(self):
self.geo.add_model(propname='throat.perimeter',
model=mods.cylinder,
regen_mode='normal')
a = np.array([0.31415927])
b = np.unique(self.geo['throat.perimeter'])
assert_approx_equal(a, b)
def test_ra2dec():
"""Test ra2dec against astropy conversion"""
# Test against the astropy calculations
for ra in ['14:21:45.003', '-12 04 22', '-00 01 12.003']:
ans = at.ra2dec(ra)
desired = Angle(ra, unit=u.hourangle).hour * 15
assert_approx_equal(ans, desired, "{0} != {1}".format(ans, desired))
def test_rectangle(self):
self.geo.add_model(propname='throat.perimeter',
model=mods.rectangle,
regen_mode='normal')
a = np.array([1.0])
b = np.unique(self.geo['throat.perimeter'])
assert_approx_equal(a, b)
def test_EllipsoidRadius():
np = Nanoparticle()
np.setEllipsoidRadius(30.0, 30.0)
assert_approx_equal(30.0, np.getEllipsoidZRadius())
assert_approx_equal(30.0, np.getEllipsoidXYRadius())
with raises(ValueError):
np.setEllipsoidRadius(0.0, 0.0)
def test_circle(self):
self.geo.add_model(propname='pore.area',
model=mods.circle,
regen_mode='normal')
a = np.array([1.0])
b = np.unique(self.geo['pore.area'])
assert_approx_equal(a, b)
def test_amplitude(self):
"""Test if height of peak in normalized Lomb-Scargle periodogram
corresponds to amplitude of the generated input signal.
"""
# Input parameters
ampl = 2.
w = 1.
phi = 0.5 * np.pi
nin = 100
nout = 1000
p = 0.7 # Fraction of points to select
# Randomly select a fraction of an array with timesteps
np.random.seed(2353425)
r = np.random.rand(nin)
t = np.linspace(0.01*np.pi, 10.*np.pi, nin)[r >= p]
# Plot a sine wave for the selected times
x = ampl * np.sin(w*t + phi)
# Define the array of frequencies for which to compute the periodogram
f = np.linspace(0.01, 10., nout)
# Calculate Lomb-Scargle periodogram
pgram = lombscargle(t, x, f)
# Normalize
pgram = np.sqrt(4 * pgram / t.shape[0])
# Check if difference between found frequency maximum and input
# frequency is less than accuracy
assert_approx_equal(np.max(pgram), ampl, significant=2)
def test_create_evoked_physio_signal(self):
import pyhrf.paradigm
phy_params = phy.PHY_PARAMS_FRISTON00
tr = 1.
duration = 20.
ne = np.array([[10., 5.]])
nb_conds, nb_vox = ne.shape
# one single stimulation at the begining
paradigm = pyhrf.paradigm.Paradigm({'c': [np.array([0.])]}, [duration],
{'c': [np.array([1.])]})
s, f, hbr, cbv = phy.create_evoked_physio_signals(phy_params, paradigm,
ne, tr)
# shape of a signal: (nb_vox, nb_scans)
if 0:
import matplotlib.pyplot as plt
t = np.arange(f[0].size) * tr
plt.plot(t, f[0])
plt.title('inflow')
plt.show()
self.assertEqual(s.shape, (paradigm.get_rastered(tr)['c'][0].size,
nb_vox))
# check signal causality:
self.assertEqual(f[0, 0], 1.)
npt.assert_approx_equal(f[-1, 0], 1., significant=2)
# non-regression test:
self.assertEqual(np.argmax(f[:, 0]) * tr, 2)
def testcompare(m1, m2):
from numpy.testing import assert_almost_equal, assert_approx_equal
decimal = 12
#inv
assert_almost_equal(m1.minv, m2.minv, decimal=decimal)
#matrix half and invhalf
#fix sign in test, should this be standardized
s1 = np.sign(m1.mhalf.sum(1))[:,None]
s2 = np.sign(m2.mhalf.sum(1))[:,None]
scorr = s1/s2
assert_almost_equal(m1.mhalf, m2.mhalf * scorr, decimal=decimal)
assert_almost_equal(m1.minvhalf, m2.minvhalf, decimal=decimal)
#eigenvalues, eigenvectors
evals1, evecs1 = m1.meigh
evals2, evecs2 = m2.meigh
assert_almost_equal(evals1, evals2, decimal=decimal)
#normalization can be different: evecs in columns
s1 = np.sign(evecs1.sum(0))
s2 = np.sign(evecs2.sum(0))
scorr = s1/s2
assert_almost_equal(evecs1, evecs2 * scorr, decimal=decimal)
#determinant
assert_approx_equal(m1.mdet, m2.mdet, significant=13)
assert_approx_equal(m1.mlogdet, m2.mlogdet, significant=13)
def test_calculate_log_ratios_calculates_correct_values():
tpms = _get_test_tpms()
t.calculate_log_ratios(tpms)
for index, row in tpms.iterrows():
val = np.log10(CALC_TPMS_VALS[index]/float(REAL_TPMS_VALS[index]))
npt.assert_approx_equal(row[t.LOG10_RATIO], val)
def test_laminar():
for Re in [1, 10, 100, 1000]:
assert_approx_equal(
friction_factor(Re, 1),
64./Re,
significant=2
)
def test_ntc_resistance(self):
# Values arbitrarily from Murata NCP15WB473D03RC
assert_approx_equal(ntc_resistance("47k", "4050K", "25°C"), 47000)
assert_approx_equal(ntc_resistance("47k", "4050K", "0°C"), 162942.79)
assert_approx_equal(ntc_resistance("47k", "4050K", "-18°C"), 463773.791)
assert_approx_equal(ntc_resistance("47k", "4050K", "5°C"), 124819.66)
assert_approx_equal(ntc_resistance("47k", "4050K", "60°C"), 11280.407)
def test_model_obj():
"""
Test the object behavior for the `Model` object
Test the instantiation and attribute data for the `Model` object of
the `single_bubble_model` module.
Notes
-----
This test function only tests instantiation from a netCDF file of ambient
CTD data and does not test any of the object methods. Instantiation
from simulation data and testing of the object methods is done in the
remaining test functions.
See Also
--------
test_simulation
"""
# Get the ambient profile data
profile = get_profile()
# Initialize a Model object
sbm = single_bubble_model.Model(profile)
# Check the model attributes
assert_approx_equal(sbm.p.rho_r, 1031.035855535142, significant=6)
(T, S, P) = profile.get_values(1000., ['temperature', 'salinity',
'pressure'])
(Tp, Sp, Pp) = sbm.profile.get_values(1000., ['temperature', 'salinity',
'pressure'])
assert Tp == T
assert Sp == S
assert Pp == P
def test_model_perf(self):
np_testing.assert_approx_equal(
self.exercise.classifier.history.history['val_accuracy'][0],
self.classifier.history.history['val_accuracy'][0],
significant=1)
def test_from_txt():
"""
Test the ambient data methods on simple text files.
This unit test reads in the text files ./data/C.dat and
./data/T.dat using `numpy.loadtxt` and then uses this data to test
the data manipulation and storage methods in ambient.py.
"""
cdat_file = os.path.join(DATA_DIR, 'C.dat')
tdat_file = os.path.join(DATA_DIR, 'T.dat')
# Load in the raw data using np.loadtxt
C_raw = np.loadtxt(cdat_file, comments='%')
T_raw = np.loadtxt(tdat_file, comments='%')
# Clean the profile to remove depth reversals
C_data = get_profile(C_raw, 1, 25, None, 0., 1.0256410e+01, 8.0000000e+02,
34, 2)
T_data = get_profile(T_raw, 1, 25, None, 0., 1.0831721e+01, 7.9922631e+02,
34, 2)
# Convert the data to standard units
C_data, C_units = get_units(C_data, ['psu', 'm'], 34, 2, ['psu', 'm'])
T_data, T_units = get_units(T_data, ['deg C', 'm'], 34, 2, ['K', 'm'])
# Create an empty netCDF4-classic dataset to store the CTD information
nc_file = os.path.join(OUTPUT_DIR, 'test_DS.nc')
summary = 'Py.Test test file'
source = 'Profiles from the SINTEF DeepSpill Report'
sea_name = 'Norwegian Sea'
p_lat = 64.99066
p_lon = 4.84725
p_time = date2num(datetime(2000, 6, 27, 12, 0, 0),
units='seconds since 1970-01-01 00:00:00 0:00',
calendar='julian')
nc = check_nc_db(nc_file, summary, source, sea_name, p_lat, p_lon, p_time)
# Fill the netCDF4-classic dataset with the data in the salinity profile
symbols = ['salinity', 'z']
comments = ['measured', 'measured']
long_names = ['Practical salinity', 'depth below the water surface']
std_names = ['salinity', 'depth']
nc = get_filled_nc_db(nc, C_data, symbols, C_units, comments, 1,
long_names, std_names)
# Because the temperature data will be interpolated to the vertical
# coordinates in the salinity profile, insert the data and test that
# insertion worked correctly by hand
symbols = ['temperature', 'z']
comments = ['measured', 'measured']
long_names = ['Absolute temperature', 'depth below the water surface']
std_names = ['temperature', 'depth']
nc = ambient.fill_nc_db(nc, T_data, symbols, T_units, comments, 1)
assert_array_almost_equal(nc.variables['z'][:], C_data[:, 1], decimal=6)
z = nc.variables['z'][:]
T = nc.variables['temperature'][:]
f = interp1d(z, T)
for i in range(T_data.shape[0]):
assert_approx_equal(T_data[i, 0], f(T_data[i, 1]), significant=5)
assert nc.variables['temperature'].comment == comments[0]
# Calculate and insert the pressure data
z = nc.variables['z'][:]
T = nc.variables['temperature'][:]
S = nc.variables['salinity'][:]
P = ambient.compute_pressure(z, T, S, 0)
P_data = np.vstack((z, P)).transpose()
nc = ambient.fill_nc_db(nc, P_data, ['z', 'pressure'], ['m', 'Pa'],
['measured', 'computed'], 0)
# Test the Profile object
ds = get_profile_obj(nc, [], [])
# Close down the pipes to the netCDF dataset files
ds.nc.close()
return ds
def test_all(self):
d = macrodata.load_pandas().data
#import datasetswsm.greene as g
#d = g.load('5-1')
#growth rates
gs_l_realinv = 400 * np.diff(np.log(d['realinv'].values))
gs_l_realgdp = 400 * np.diff(np.log(d['realgdp'].values))
#simple diff, not growthrate, I want heteroscedasticity later for testing
endogd = np.diff(d['realinv'])
exogd = add_constant(np.c_[np.diff(d['realgdp'].values),
d['realint'][:-1].values])
endogg = gs_l_realinv
exogg = add_constant(np.c_[gs_l_realgdp, d['realint'][:-1].values])
res_ols = OLS(endogg, exogg).fit()
#print res_ols.params
mod_g1 = GLSAR(endogg, exogg, rho=-0.108136)
res_g1 = mod_g1.fit()
#print res_g1.params
mod_g2 = GLSAR(endogg, exogg, rho=-0.108136) #-0.1335859) from R
res_g2 = mod_g2.iterative_fit(maxiter=5)
#print res_g2.params
rho = -0.108136
# coefficient std. error t-ratio p-value 95% CONFIDENCE INTERVAL
partable = np.array([
[-9.50990, 0.990456, -9.602, 3.65e-018, -11.4631, -7.55670], # ***
[4.37040, 0.208146, 21.00, 2.93e-052, 3.95993, 4.78086], # ***
[-0.579253, 0.268009, -2.161, 0.0319, -1.10777, -0.0507346]
]) # **
#Statistics based on the rho-differenced data:
result_gretl_g1 = dict(endog_mean=("Mean dependent var", 3.113973),
endog_std=("S.D. dependent var", 18.67447),
ssr=("Sum squared resid", 22530.90),
mse_resid_sqrt=("S.E. of regression", 10.66735),
rsquared=("R-squared", 0.676973),
rsquared_adj=("Adjusted R-squared", 0.673710),
fvalue=("F(2, 198)", 221.0475),
f_pvalue=("P-value(F)", 3.56e-51),
resid_acf1=("rho", -0.003481),
dw=("Durbin-Watson", 1.993858))
#fstatistic, p-value, df1, df2
reset_2_3 = [5.219019, 0.00619, 2, 197, "f"]
reset_2 = [7.268492, 0.00762, 1, 198, "f"]
reset_3 = [5.248951, 0.023, 1, 198, "f"]
#LM-statistic, p-value, df
arch_4 = [7.30776, 0.120491, 4, "chi2"]
#multicollinearity
vif = [1.002, 1.002]
cond_1norm = 6862.0664
determinant = 1.0296049e+009
reciprocal_condition_number = 0.013819244
#Chi-square(2): test-statistic, pvalue, df
normality = [20.2792, 3.94837e-005, 2]
#tests
res = res_g1 #with rho from Gretl
#basic
assert_almost_equal(res.params, partable[:, 0], 4)
assert_almost_equal(res.bse, partable[:, 1], 6)
assert_almost_equal(res.tvalues, partable[:, 2], 2)
assert_almost_equal(res.ssr, result_gretl_g1['ssr'][1], decimal=2)
#assert_almost_equal(res.llf, result_gretl_g1['llf'][1], decimal=7) #not in gretl
#assert_almost_equal(res.rsquared, result_gretl_g1['rsquared'][1], decimal=7) #FAIL
#assert_almost_equal(res.rsquared_adj, result_gretl_g1['rsquared_adj'][1], decimal=7) #FAIL
assert_almost_equal(np.sqrt(res.mse_resid),
result_gretl_g1['mse_resid_sqrt'][1],
decimal=5)
assert_almost_equal(res.fvalue,
result_gretl_g1['fvalue'][1],
decimal=4)
assert_approx_equal(res.f_pvalue,
result_gretl_g1['f_pvalue'][1],
significant=2)
#assert_almost_equal(res.durbin_watson, result_gretl_g1['dw'][1], decimal=7) #TODO
#arch
#sm_arch = smsdia.acorr_lm(res.wresid**2, maxlag=4, autolag=None)
sm_arch = smsdia.het_arch(res.wresid, maxlag=4)
assert_almost_equal(sm_arch[0], arch_4[0], decimal=4)
assert_almost_equal(sm_arch[1], arch_4[1], decimal=6)
#tests
res = res_g2 #with estimated rho
#estimated lag coefficient
assert_almost_equal(res.model.rho, rho, decimal=3)
#basic
assert_almost_equal(res.params, partable[:, 0], 4)
assert_almost_equal(res.bse, partable[:, 1], 3)
assert_almost_equal(res.tvalues, partable[:, 2], 2)
assert_almost_equal(res.ssr, result_gretl_g1['ssr'][1], decimal=2)
#assert_almost_equal(res.llf, result_gretl_g1['llf'][1], decimal=7) #not in gretl
#assert_almost_equal(res.rsquared, result_gretl_g1['rsquared'][1], decimal=7) #FAIL
#assert_almost_equal(res.rsquared_adj, result_gretl_g1['rsquared_adj'][1], decimal=7) #FAIL
assert_almost_equal(np.sqrt(res.mse_resid),
result_gretl_g1['mse_resid_sqrt'][1],
decimal=5)
assert_almost_equal(res.fvalue,
result_gretl_g1['fvalue'][1],
decimal=0)
assert_almost_equal(res.f_pvalue,
result_gretl_g1['f_pvalue'][1],
decimal=6)
#assert_almost_equal(res.durbin_watson, result_gretl_g1['dw'][1], decimal=7) #TODO
c = oi.reset_ramsey(res, degree=2)
compare_ftest(c, reset_2, decimal=(2, 4))
c = oi.reset_ramsey(res, degree=3)
compare_ftest(c, reset_2_3, decimal=(2, 4))
#arch
#sm_arch = smsdia.acorr_lm(res.wresid**2, maxlag=4, autolag=None)
sm_arch = smsdia.het_arch(res.wresid, maxlag=4)
assert_almost_equal(sm_arch[0], arch_4[0], decimal=1)
assert_almost_equal(sm_arch[1], arch_4[1], decimal=2)
'''
Performing iterative calculation of rho...
ITER RHO ESS
1 -0.10734 22530.9
2 -0.10814 22530.9
Model 4: Cochrane-Orcutt, using observations 1959:3-2009:3 (T = 201)
Dependent variable: ds_l_realinv
rho = -0.108136
coefficient std. error t-ratio p-value
-------------------------------------------------------------
const -9.50990 0.990456 -9.602 3.65e-018 ***
ds_l_realgdp 4.37040 0.208146 21.00 2.93e-052 ***
realint_1 -0.579253 0.268009 -2.161 0.0319 **
Statistics based on the rho-differenced data:
Mean dependent var 3.113973 S.D. dependent var 18.67447
Sum squared resid 22530.90 S.E. of regression 10.66735
R-squared 0.676973 Adjusted R-squared 0.673710
F(2, 198) 221.0475 P-value(F) 3.56e-51
rho -0.003481 Durbin-Watson 1.993858
'''
'''
RESET test for specification (squares and cubes)
Test statistic: F = 5.219019,
with p-value = P(F(2,197) > 5.21902) = 0.00619
RESET test for specification (squares only)
Test statistic: F = 7.268492,
with p-value = P(F(1,198) > 7.26849) = 0.00762
RESET test for specification (cubes only)
Test statistic: F = 5.248951,
with p-value = P(F(1,198) > 5.24895) = 0.023:
'''
'''
Test for ARCH of order 4
coefficient std. error t-ratio p-value
--------------------------------------------------------
alpha(0) 97.0386 20.3234 4.775 3.56e-06 ***
alpha(1) 0.176114 0.0714698 2.464 0.0146 **
alpha(2) -0.0488339 0.0724981 -0.6736 0.5014
alpha(3) -0.0705413 0.0737058 -0.9571 0.3397
alpha(4) 0.0384531 0.0725763 0.5298 0.5968
Null hypothesis: no ARCH effect is present
Test statistic: LM = 7.30776
with p-value = P(Chi-square(4) > 7.30776) = 0.120491:
'''
'''
Variance Inflation Factors
Minimum possible value = 1.0
Values > 10.0 may indicate a collinearity problem
ds_l_realgdp 1.002
realint_1 1.002
VIF(j) = 1/(1 - R(j)^2), where R(j) is the multiple correlation coefficient
between variable j and the other independent variables
Properties of matrix X'X:
1-norm = 6862.0664
Determinant = 1.0296049e+009
Reciprocal condition number = 0.013819244
'''
'''
Test for ARCH of order 4 -
Null hypothesis: no ARCH effect is present
Test statistic: LM = 7.30776
with p-value = P(Chi-square(4) > 7.30776) = 0.120491
Test of common factor restriction -
Null hypothesis: restriction is acceptable
Test statistic: F(2, 195) = 0.426391
with p-value = P(F(2, 195) > 0.426391) = 0.653468
Test for normality of residual -
Null hypothesis: error is normally distributed
Test statistic: Chi-square(2) = 20.2792
with p-value = 3.94837e-005:
'''
#no idea what this is
'''
Augmented regression for common factor test
OLS, using observations 1959:3-2009:3 (T = 201)
Dependent variable: ds_l_realinv
coefficient std. error t-ratio p-value
---------------------------------------------------------------
const -10.9481 1.35807 -8.062 7.44e-014 ***
ds_l_realgdp 4.28893 0.229459 18.69 2.40e-045 ***
realint_1 -0.662644 0.334872 -1.979 0.0492 **
ds_l_realinv_1 -0.108892 0.0715042 -1.523 0.1294
ds_l_realgdp_1 0.660443 0.390372 1.692 0.0923 *
realint_2 0.0769695 0.341527 0.2254 0.8219
Sum of squared residuals = 22432.8
Test of common factor restriction
Test statistic: F(2, 195) = 0.426391, with p-value = 0.653468
'''
################ with OLS, HAC errors
#Model 5: OLS, using observations 1959:2-2009:3 (T = 202)
#Dependent variable: ds_l_realinv
#HAC standard errors, bandwidth 4 (Bartlett kernel)
#coefficient std. error t-ratio p-value 95% CONFIDENCE INTERVAL
#for confidence interval t(199, 0.025) = 1.972
partable = np.array([
[-9.48167, 1.17709, -8.055, 7.17e-014, -11.8029, -7.16049], # ***
[4.37422, 0.328787, 13.30, 2.62e-029, 3.72587, 5.02258], #***
[-0.613997, 0.293619, -2.091, 0.0378, -1.19300, -0.0349939]
]) # **
result_gretl_g1 = dict(endog_mean=("Mean dependent var", 3.257395),
endog_std=("S.D. dependent var", 18.73915),
ssr=("Sum squared resid", 22799.68),
mse_resid_sqrt=("S.E. of regression", 10.70380),
rsquared=("R-squared", 0.676978),
rsquared_adj=("Adjusted R-squared", 0.673731),
fvalue=("F(2, 199)", 90.79971),
f_pvalue=("P-value(F)", 9.53e-29),
llf=("Log-likelihood", -763.9752),
aic=("Akaike criterion", 1533.950),
bic=("Schwarz criterion", 1543.875),
hqic=("Hannan-Quinn", 1537.966),
resid_acf1=("rho", -0.107341),
dw=("Durbin-Watson", 2.213805))
linear_logs = [1.68351, 0.430953, 2, "chi2"]
#for logs: dropping 70 nan or incomplete observations, T=133
#(res_ols.model.exog <=0).any(1).sum() = 69 ?not 70
linear_squares = [7.52477, 0.0232283, 2, "chi2"]
#Autocorrelation, Breusch-Godfrey test for autocorrelation up to order 4
lm_acorr4 = [1.17928, 0.321197, 4, 195, "F"]
lm2_acorr4 = [4.771043, 0.312, 4, "chi2"]
acorr_ljungbox4 = [5.23587, 0.264, 4, "chi2"]
#break
cusum_Harvey_Collier = [0.494432, 0.621549, 198,
"t"] #stats.t.sf(0.494432, 198)*2
#see cusum results in files
break_qlr = [3.01985, 0.1, 3, 196,
"maxF"] #TODO check this, max at 2001:4
break_chow = [13.1897, 0.00424384, 3, "chi2"] # break at 1984:1
arch_4 = [3.43473, 0.487871, 4, "chi2"]
normality = [23.962, 0.00001, 2, "chi2"]
het_white = [33.503723, 0.000003, 5, "chi2"]
het_breusch_pagan = [1.302014, 0.521520, 2,
"chi2"] #TODO: not available
het_breusch_pagan_konker = [0.709924, 0.701200, 2, "chi2"]
reset_2_3 = [5.219019, 0.00619, 2, 197, "f"]
reset_2 = [7.268492, 0.00762, 1, 198, "f"]
reset_3 = [5.248951, 0.023, 1, 198, "f"] #not available
cond_1norm = 5984.0525
determinant = 7.1087467e+008
reciprocal_condition_number = 0.013826504
vif = [1.001, 1.001]
names = 'date residual leverage influence DFFITS'.split(
)
cur_dir = os.path.abspath(os.path.dirname(__file__))
fpath = os.path.join(cur_dir,
'results/leverage_influence_ols_nostars.txt')
lev = np.genfromtxt(fpath,
skip_header=3,
skip_footer=1,
converters={0: lambda s: s})
#either numpy 1.6 or python 3.2 changed behavior
if np.isnan(lev[-1]['f1']):
lev = np.genfromtxt(fpath,
skip_header=3,
skip_footer=2,
converters={0: lambda s: s})
lev.dtype.names = names
res = res_ols #for easier copying
cov_hac = sw.cov_hac_simple(res, nlags=4, use_correction=False)
bse_hac = sw.se_cov(cov_hac)
assert_almost_equal(res.params, partable[:, 0], 5)
assert_almost_equal(bse_hac, partable[:, 1], 5)
#TODO
assert_almost_equal(res.ssr, result_gretl_g1['ssr'][1], decimal=2)
assert_almost_equal(res.llf, result_gretl_g1['llf'][1],
decimal=4) #not in gretl
assert_almost_equal(res.rsquared,
result_gretl_g1['rsquared'][1],
decimal=6) #FAIL
assert_almost_equal(res.rsquared_adj,
result_gretl_g1['rsquared_adj'][1],
decimal=6) #FAIL
assert_almost_equal(np.sqrt(res.mse_resid),
result_gretl_g1['mse_resid_sqrt'][1],
decimal=5)
#f-value is based on cov_hac I guess
#res2 = res.get_robustcov_results(cov_type='HC1')
# TODO: fvalue differs from Gretl, trying any of the HCx
#assert_almost_equal(res2.fvalue, result_gretl_g1['fvalue'][1], decimal=0) #FAIL
#assert_approx_equal(res.f_pvalue, result_gretl_g1['f_pvalue'][1], significant=1) #FAIL
#assert_almost_equal(res.durbin_watson, result_gretl_g1['dw'][1], decimal=7) #TODO
c = oi.reset_ramsey(res, degree=2)
compare_ftest(c, reset_2, decimal=(6, 5))
c = oi.reset_ramsey(res, degree=3)
compare_ftest(c, reset_2_3, decimal=(6, 5))
linear_sq = smsdia.linear_lm(res.resid, res.model.exog)
assert_almost_equal(linear_sq[0], linear_squares[0], decimal=6)
assert_almost_equal(linear_sq[1], linear_squares[1], decimal=7)
hbpk = smsdia.het_breuschpagan(res.resid, res.model.exog)
assert_almost_equal(hbpk[0], het_breusch_pagan_konker[0], decimal=6)
assert_almost_equal(hbpk[1], het_breusch_pagan_konker[1], decimal=6)
hw = smsdia.het_white(res.resid, res.model.exog)
assert_almost_equal(hw[:2], het_white[:2], 6)
#arch
#sm_arch = smsdia.acorr_lm(res.resid**2, maxlag=4, autolag=None)
sm_arch = smsdia.het_arch(res.resid, maxlag=4)
assert_almost_equal(sm_arch[0], arch_4[0], decimal=5)
assert_almost_equal(sm_arch[1], arch_4[1], decimal=6)
vif2 = [
oi.variance_inflation_factor(res.model.exog, k) for k in [1, 2]
]
infl = oi.OLSInfluence(res_ols)
#print np.max(np.abs(lev['DFFITS'] - infl.dffits[0]))
#print np.max(np.abs(lev['leverage'] - infl.hat_matrix_diag))
#print np.max(np.abs(lev['influence'] - infl.influence)) #just added this based on Gretl
#just rough test, low decimal in Gretl output,
assert_almost_equal(lev['residual'], res.resid, decimal=3)
assert_almost_equal(lev['DFFITS'], infl.dffits[0], decimal=3)
assert_almost_equal(lev['leverage'], infl.hat_matrix_diag, decimal=3)
assert_almost_equal(lev['influence'], infl.influence, decimal=4)
def test_parse_angle(dim, expected_out):
actual_out = vizier.core._parse_angle(dim)
actual_unit, actual_value = actual_out
expected_unit, expected_value = expected_out
assert actual_unit == expected_unit
npt.assert_approx_equal(actual_value, expected_value, significant=2)
def testCTerPhi(self):
assert_approx_equal(174.160, calcPhi(UBI_CTER), 2)
def testCalcPhi(self):
assert_approx_equal(87.723, calcPhi(UBI_GLY10), 2)
def test_HC0_errors(self):
#They are split up because the copied results do not have any DECIMAL_4
#places for the last place.
assert_almost_equal(self.res1.HC0_se[:-1],
self.res2.HC0_se[:-1], DECIMAL_4)
assert_approx_equal(np.round(self.res1.HC0_se[-1]), self.res2.HC0_se[-1])
def test_rectangle(self):
self.geo.add_model(propname='throat.volume', model=mods.rectangle)
a = np.array([0.1])
b = np.unique(self.geo['throat.volume'])
assert_approx_equal(a, b)
def test_cube(self):
self.geo.add_model(propname='throat.volume', model=mods.cuboid)
a = np.array([0.01])
b = np.unique(self.geo['throat.volume'])
assert_approx_equal(a, b)
def test_split():
v1 = 3
v2 = 5
x1, x2 = split(v_left=v1, v_right=v2)
nt.assert_allclose(np.array([x1, x2]), np.array([5.0, 3.0]) / 8.0)
nt.assert_approx_equal(x1 + x2, 1.0)
def check_from_roms():
"""
Test the ambient data methods on data read from ROMS.
this unit test reads in a ROMS netCDF output file, extracts the profile
information, and creates a new netCDF dataset and Profile class object
for use by the TAMOC modeling suite.
TODO (S. Socolofsky 7/15/2013): After fixing the octant.roms module to
have monotonically increasing depth, try to reinstate this test by
changing the function name from check_from_roms() to test_from_roms().
I was also having problems with being allowed to use the THREDDS netCDF
file with py.test. I could run the test under ipython, but not under
py.test.
"""
# Get a path to a ROMS dataset on a THREDDS server
nc_roms = 'http://barataria.tamu.edu:8080/thredds/dodsC/' + \
'ROMS_Daily/08122012/ocean_his_08122012_24.nc'
# Prepare the remaining inputs to the get_nc_db_from_roms() function
# call
nc_file = os.path.join(OUTPUT_DIR, 'test_roms.nc')
t_idx = 0
j_idx = 400
i_idx = 420
chem_names = ['dye_01', 'dye_02']
(nc, nc_roms) = ambient.get_nc_db_from_roms(nc_roms, nc_file, t_idx, j_idx,
i_idx, chem_names)
# Check the data are inserted correctly from ROMS into the new netCDF
# dataset
assert nc.summary == 'ROMS Simulation Data'
assert nc.sea_name == 'ROMS'
assert nc.variables['z'][:].shape[0] == 51
assert nc.variables['z'][0] == nc.variables['z'].valid_min
assert nc.variables['z'][-1] == nc.variables['z'].valid_max
assert_approx_equal(nc.variables['temperature'][0],
303.24728393554688,
significant=6)
assert_approx_equal(nc.variables['salinity'][0],
36.157352447509766,
significant=6)
assert_approx_equal(nc.variables['pressure'][0], 101325.0, significant=6)
assert_approx_equal(nc.variables['dye_01'][0],
3.4363944759034656e-22,
significant=6)
assert_approx_equal(nc.variables['dye_02'][0],
8.8296093939330156e-21,
significant=6)
assert_approx_equal(nc.variables['temperature'][-1],
290.7149658203125,
significant=6)
assert_approx_equal(nc.variables['salinity'][-1],
35.829414367675781,
significant=6)
assert_approx_equal(nc.variables['pressure'][-1],
3217586.2927573984,
significant=6)
assert_approx_equal(nc.variables['dye_01'][-1],
8.7777050221856635e-22,
significant=6)
assert_approx_equal(nc.variables['dye_02'][-1],
4.0334050451121613e-20,
significant=6)
# Create a Profile object from this netCDF dataset and test the Profile
# methods
roms = get_profile_obj(nc, chem_names, ['kg/m^3', 'kg/m^3'])
# Close the pipe to the netCDF dataset
roms.nc.close()
nc_roms.close()
def test_results_bootstrapped(self):
results = cbook.boxplot_stats(self.data, bootstrap=10000)
res = results[0]
for key, value in self.known_bootstrapped_ci.items():
assert_approx_equal(res[key], value)
def testCalcPsi(self):
assert_approx_equal(14.386, calcPsi(UBI_GLY10), 2)
def test_HC3_errors(self):
assert_almost_equal(self.res1.HC3_se[:-1],
self.res2.HC3_se[:-1], DECIMAL_4)
assert_approx_equal(self.res1.HC3_se[-1], self.res2.HC3_se[-1])
def testNTerPsi(self):
assert_approx_equal(153.553, calcPsi(UBI_NTER), 2)
def test_aic(self):
assert_approx_equal(self.res1.aic+2, self.res2.aic, 3)
def nominal_case_returns_expected_values(self):
preflare_irradiance = determine_preflare_irradiance(
self.light_curve.copy(),
estimated_time_of_peak_start=self.flare_peak_time)
assert_approx_equal(preflare_irradiance, 5.85e-5, significant=3)
def test_bic(self):
assert_approx_equal(self.res1.bic, self.res2.bic, 2)
def assert_approx_equal(self, *args, **kwargs):
"""
Check if two items are not equal up to significant digits.
"""
return assert_approx_equal(*args, **kwargs)
def get_profile_obj(nc, chem_names, chem_units):
"""
Check that an ambient.Profile object is created correctly and that the
methods operate as expected.
"""
if isinstance(chem_names, str):
chem_names = [chem_names]
if isinstance(chem_units, str):
chem_units = [chem_units]
# Create the profile object
prf = ambient.Profile(nc, chem_names=chem_names)
# Check the chemical names and units are correct
for i in range(len(chem_names)):
assert prf.chem_names[i] == chem_names[i]
assert prf.nchems == len(chem_names)
# Check the error criteria on the interpolator
assert prf.err == 0.01
# Check the get_units method
name_list = ['temperature', 'salinity', 'pressure'] + chem_names
unit_list = ['K', 'psu', 'Pa'] + chem_units
for i in range(len(name_list)):
assert prf.get_units(name_list[i])[0] == unit_list[i]
units = prf.get_units(name_list)
for i in range(len(name_list)):
assert units[i] == unit_list[i]
# Check the interpolator function ...
# Pick a point in the middle of the raw dataset and read off the depth
# and the values of all the variables
nz = prf.nc.variables['z'].shape[0] // 2
z = prf.z[nz]
y = prf.y[nz, :]
# Get an interpolated set of values at this same elevation
yp = prf.f(z)
# Check if the results are within the level of error expected by err
for i in range(len(name_list)):
assert np.abs((yp[i] - y[i]) / yp[i]) <= prf.err
# Next, check that the variables returned by the get_values function are
# the variables we expect
Tp, Sp, Pp = prf.get_values(z, ['temperature', 'salinity', 'pressure'])
T = prf.nc.variables['temperature'][nz]
S = prf.nc.variables['salinity'][nz]
P = prf.nc.variables['pressure'][nz]
assert np.abs((Tp - T) / T) <= prf.err
assert np.abs((Sp - S) / S) <= prf.err
assert np.abs((Pp - P) / P) <= prf.err
if prf.nchems > 0:
c = np.zeros(prf.nchems)
cp = np.zeros(prf.nchems)
for i in range(prf.nchems):
c[i] = prf.nc.variables[chem_names[i]][nz]
cp[i] = prf.get_values(z, chem_names[i])
assert np.abs((cp[i] - c[i]) / c[i]) <= prf.err
# Test the append() method by inserting the temperature data as a new
# profile, this time in degrees celsius using the variable name temp
n0 = prf.nchems
z = prf.nc.variables['z'][:]
T = prf.nc.variables['temperature'][:]
T_degC = T - 273.15
assert_array_almost_equal(T_degC + 273.15, T, decimal=6)
data = np.vstack((z, T_degC)).transpose()
symbols = ['z', 'temp']
units = ['m', 'deg C']
comments = ['measured', 'identical to temperature, but in deg C']
prf.append(data, symbols, units, comments, 0)
# Check that the data were inserted correctly
Tnc = prf.nc.variables['temp'][:]
assert_array_almost_equal(Tnc, T_degC, decimal=6)
assert prf.nc.variables['temp'].units == 'deg C'
# Check that get_values works correctly with vector inputs for depth
depths = np.linspace(prf.nc.variables['z'].valid_min,
prf.nc.variables['z'].valid_max, 100)
Temps = prf.get_values(depths, ['temperature', 'temp'])
for i in range(len(depths)):
assert_approx_equal(Temps[i, 0], Temps[i, 1] + 273.15, significant=6)
# Make sure the units are returned correctly
assert prf.get_units('temp')[0] == 'deg C'
assert prf.nc.variables['temp'].units == 'deg C'
# Check that temp is now listed as a chemical
assert prf.nchems == n0 + 1
assert prf.chem_names[-1] == 'temp'
# Test the API for calculating the buoyancy frequency (note that we do
# not check the result, just that the function call does not raise an
# error)
N = prf.buoyancy_frequency(depths)
N = prf.buoyancy_frequency(depths[50], h=0.1)
# Send back the Profile object
return prf
def test_johnson_nyquist_noise_voltage(self):
v = johnson_nyquist_noise_voltage("20 MΩ", "Δ10000 Hz", "20 °C")
assert_equal(
auto_format(johnson_nyquist_noise_voltage, "20 MΩ", "Δ10000 Hz",
"20 °C"), "56.9 µV")
assert_approx_equal(v, 56.9025e-6, significant=5)
def check_net_numpy(net_ds, num_ds, currents):
"""
Check that an ambient.Profile object is created correctly and that the
methods operate as expected.
"""
chem_names = net_ds.f_names
chem_units = net_ds.f_units
# Check the chemical names and units are correct
for i in range(3):
assert num_ds.f_names[i] == chem_names[i]
assert num_ds.f_units[i] == chem_units[i]
assert num_ds.nchems == 2
# Check the error criteria on the interpolator
assert num_ds.err == 0.01
# Check the get_units method
name_list = ['temperature', 'salinity', 'pressure'] + chem_names[0:3]
unit_list = ['K', 'psu', 'Pa'] + chem_units[0:3]
for i in range(3):
assert num_ds.get_units(name_list[i])[0] == unit_list[i]
units = num_ds.get_units(name_list)
for i in range(3):
assert units[i] == unit_list[i]
# Check the interpolator function ...
z = np.linspace(num_ds.z_min, num_ds.z_max, 100)
# Next, check that the variables returned by the get_values function are
# the variables we expect
for depth in z:
assert num_ds.get_values(depth, 'temperature') == \
net_ds.get_values(depth, 'temperature')
assert num_ds.get_values(depth, 'salinity') == \
net_ds.get_values(depth, 'salinity')
assert num_ds.get_values(depth, 'pressure') == \
net_ds.get_values(depth, 'pressure')
# Test the append() method by inserting the temperature data as a new
# profile, this time in degrees celsius using the variable name temp
n0 = num_ds.nchems
z = num_ds.data[:, 0]
T = num_ds.data[:, 1]
T_degC = T - 273.15
data = np.vstack((z, T_degC)).transpose()
symbols = ['z', 'temp']
units = ['m', 'deg C']
comments = ['measured', 'identical to temperature, but in deg C']
num_ds.append(data, symbols, units, comments, 0)
# Check that the data were inserted correctly
Tnc = num_ds.data[:, num_ds.chem_names.index('temp') + 7]
assert_array_almost_equal(Tnc, T_degC, decimal=6)
assert num_ds.get_units('temp')[0] == 'deg C'
# Check that get_values works correctly with vector inputs for depth
Temps = num_ds.get_values(z, ['temperature', 'temp'])
for i in range(len(z)):
assert_approx_equal(Temps[i, 0], Temps[i, 1] + 273.15, significant=6)
# Make sure the units are returned correctly
assert num_ds.get_units('temp')[0] == 'deg C'
# Check that temp is now listed as a chemical
assert num_ds.nchems == n0 + 1
assert num_ds.chem_names[-1] == 'temp'
# Test the API for calculating the buoyancy frequency (note that we do
# not check the result, just that the function call does not raise an
# error)
N_num = num_ds.buoyancy_frequency(z)
N_net = num_ds.buoyancy_frequency(z)
assert_array_almost_equal(N_num, N_net, decimal=6)
def test_valid_telemetry():
telemetry = csim_parser.parse_packet()
assert isinstance(telemetry, dict)
assert len(telemetry) == 27
assert telemetry['FlightModel'] == 1
assert telemetry['CommandAcceptCount'] == 2691
assert telemetry['SpacecraftMode'] == 4
assert telemetry['PointingMode'] == 1
assert telemetry['Eclipse'] == 0
assert telemetry['EnableX123'] == 1
assert telemetry['EnableSps'] == 1
assert_approx_equal(telemetry['SpsX'], -0.36, significant=2)
assert_approx_equal(telemetry['SpsY'], 0.16, significant=2)
assert telemetry['Xp'] == 153.0
assert_approx_equal(telemetry['CdhBoardTemperature'], 12.25, significant=4)
assert_approx_equal(telemetry['CommBoardTemperature'], 8.56, significant=3)
assert_approx_equal(telemetry['MotherboardTemperature'],
8.62,
significant=3)
assert_approx_equal(telemetry['EpsBoardTemperature'], 31.56, significant=4)
assert_approx_equal(telemetry['SolarPanelMinusYTemperature'],
52.23,
significant=4)
assert_approx_equal(telemetry['SolarPanelPlusXTemperature'],
53.80,
significant=4)
assert_approx_equal(telemetry['SolarPanelPlusYTemperature'],
46.82,
significant=4)
assert_approx_equal(telemetry['BatteryTemperature'], 12.34, significant=4)
assert_approx_equal(telemetry['BatteryVoltage'], 7.97, significant=3)
assert_approx_equal(telemetry['BatteryChargeCurrent'],
347.4,
significant=4)
assert_approx_equal(telemetry['BatteryDischargeCurrent'],
9.54,
significant=3)
assert_approx_equal(telemetry['SolarPanelMinusYCurrent'],
134,
significant=3)
assert_approx_equal(telemetry['SolarPanelPlusXCurrent'],
536,
significant=3)
assert_approx_equal(telemetry['SolarPanelPlusYCurrent'],
136,
significant=3)
assert_approx_equal(telemetry['SolarPanelMinusYVoltage'],
16.9,
significant=3)
assert_approx_equal(telemetry['SolarPanelPlusXVoltage'],
9.77,
significant=3)
assert_approx_equal(telemetry['SolarPanelPlusYVoltage'],
16.5,
significant=3)
def test_inductive_reactance(self):
assert_approx_equal(inductive_reactance("100 µH", "3.2 MHz"), 2010.619)
assert_approx_equal(inductive_reactance(100e-6, 3.2e6), 2010.619)
self.assertEqual(auto_format(inductive_reactance, "100 µH", "3.2 MHz"),
"2.01 kΩ")
def test_johnson_nyquist_noise_current(self):
v = johnson_nyquist_noise_current("20 MΩ", "Δ10000 Hz", "20 °C")
assert_approx_equal(v, 2.84512e-12, significant=5)
assert_equal(
auto_format(johnson_nyquist_noise_current, "20 MΩ", "Δ10000 Hz",
"20 °C"), "2.85 pA")
def test_exponential_atmosphere_scalar(self):
h = 712345 # [m] altitude
h /= 1000 # convert to [km]
rho = atmos.exponential_density_model(h)
npt.assert_approx_equal(rho, 3.144284600e-14)
def test_f_vs_efunda():
assert_approx_equal(
friction_factor(reynolds_number(U, D, nu), D),
0.0263,
significant=2
)
def test_location_stats_scalars(location, attr):
expected = {
"useros": {
True: True,
False: False
},
"cov": {
True: 0.5887644,
False: 0.5280314
},
"geomean": {
True: 8.0779865,
False: 8.8140731
},
"geostd": {
True: 1.8116975,
False: 1.7094616
},
"logmean": {
True: 2.0891426,
False: 2.1763497
},
"logstd": {
True: 0.5942642,
False: 0.5361785
},
"mean": {
True: 9.5888515,
False: 10.120571
},
"median": {
True: 7.5000000,
False: 8.7100000
},
"pctl10": {
True: 4.0460279,
False: 5.0000000
},
"pctl25": {
True: 5.6150000,
False: 5.8050000
},
"pctl75": {
True: 11.725000,
False: 11.725000
},
"pctl90": {
True: 19.178000,
False: 19.178000
},
"skew": {
True: 0.8692107,
False: 0.8537566
},
"std": {
True: 5.6455746,
False: 5.3439797
},
}
nptest.assert_approx_equal(getattr(location, attr),
expected[attr][location.useros],
significant=5)
def test_profile_deeper():
"""
Test the methods to compute buoyancy_frequency and to extend a CTD profile
to greater depths. We just test the data from ctd_bm54.cnv since these
methods are independent of the source of data.
"""
# Make sure the netCDF file for the ctd_BM54.cnv is already created by
# running the test file that creates it.
test_from_ctd()
# Get a Profile object from this dataset
nc_file = os.path.join(OUTPUT_DIR, 'test_BM54.nc')
ctd = ambient.Profile(nc_file, chem_names=['oxygen'])
# Compute the buoyancy frequency at 1500 m and verify that the result is
# correct
N = ctd.buoyancy_frequency(1529.789, h=0.01)
assert_approx_equal(N, 0.00061463758327116565, significant=6)
# Record a few values to check after running the extension method
T0, S0, P0, o20 = ctd.get_values(
1000., ['temperature', 'salinity', 'pressure', 'oxygen'])
z0 = ctd.data[:, 0]
# Extend the profile to 2500 m
nc_file = os.path.join(OUTPUT_DIR, 'test_BM54_deeper.nc')
ctd.extend_profile_deeper(2500., nc_file)
# Check if the original data is preserved
T1, S1, P1, o21 = ctd.get_values(
1000., ['temperature', 'salinity', 'pressure', 'oxygen'])
z1 = ctd.data[:, 0]
# Make sure the results are still right
assert_approx_equal(T1, T0, significant=6)
assert_approx_equal(S1, S0, significant=6)
assert_approx_equal(P1, P0, significant=6)
assert_approx_equal(o21, o20, significant=6)
assert z1.shape[0] > z0.shape[0]
assert z1[-1] == 2500.
# Note that the buoyancy frequency shifts very slightly because density
# is not linearly proportional to salinity. Nonetheless, the results are
# close to what we want, so this method of extending the profile works
# adequately.
N = ctd.buoyancy_frequency(1500.)
assert_approx_equal(N, 0.0006377576016247663, significant=6)
N = ctd.buoyancy_frequency(2500.)
assert_approx_equal(N, 0.0006146292892002274, significant=6)
ctd.close_nc()
def test_psm_Model():
"""
Test the `Model` class
Test all of the functionality in the `Model` class. This class uses fluid
property values computed by the `dbm` module. The main thing that needs
to be tested is that the connections to the `BaseModel` class are
implemented correctly.
"""
# Get the TAMOC objects for a typical spill
profile, oil, mass_flux, z0, Tj = get_blowout_model()
# Create a psm.Model object
spill = psm.Model(profile, oil, mass_flux, z0, Tj)
# Simulate breakup from a blowout ----------------------------------------
d0 = 0.15
spill.simulate(d0, model_gas='wang_etal', model_oil='sintef')
# Create the particle size distributions
nbins_gas = 10
nbins_oil = 15
de_gas_model, vf_gas_model, de_oil_model, vf_oil_model = \
spill.get_distributions(nbins_gas, nbins_oil)
de_max_gas = 0.031667073026852774
de_max_oil = 0.019433783423489368
d50_gas = 0.004757196250447496
d50_oil = 0.004183783481056991
de_gas = np.array([
0.00239291, 0.00274617, 0.00315159, 0.00361687, 0.00415083, 0.00476362,
0.00546688, 0.00627396, 0.0072002, 0.00826317
])
vf_gas = np.array([
0.01545088, 0.0432876, 0.09350044, 0.15570546, 0.19990978, 0.19788106,
0.15101303, 0.08885147, 0.04030462, 0.01409565
])
de_oil = np.array([
0.0004472, 0.00056405, 0.00071143, 0.00089732, 0.00113177, 0.00142749,
0.00180047, 0.00227091, 0.00286426, 0.00361265, 0.00455658, 0.00574714,
0.00724879, 0.00914279, 0.01153166
])
vf_oil = np.array([
0.00522565, 0.00788413, 0.01185467, 0.01773296, 0.02631885, 0.03859967,
0.05559785, 0.07791868, 0.10476347, 0.13228731, 0.15193437, 0.15128424,
0.12160947, 0.0710618, 0.02592687
])
assert_approx_equal(spill.get_de_max(0), de_max_gas)
assert_approx_equal(spill.get_de_max(1), de_max_oil)
assert_approx_equal(spill.get_d50(0), d50_gas)
assert_approx_equal(spill.get_d50(1), d50_oil)
assert_array_almost_equal(spill.de_gas, de_gas, decimal=6)
assert_array_almost_equal(spill.vf_gas, vf_gas, decimal=6)
assert_array_almost_equal(spill.de_oil, de_oil, decimal=6)
assert_array_almost_equal(spill.vf_oil, vf_oil, decimal=6)
# Switch oil model to li_etal --------------------------------------------
spill.simulate(d0, model_gas='wang_etal', model_oil='li_etal')
# Create the particle size distributions
nbins_gas = 10
nbins_oil = 15
de_gas_model, vf_gas_model, de_oil_model, vf_oil_model = \
spill.get_distributions(nbins_gas, nbins_oil)
d50_oil = 0.0022201887727817814
de_oil = np.array([
0.00023732, 0.00029932, 0.00037753, 0.00047618, 0.00060059, 0.00075752,
0.00095545, 0.00120509, 0.00151996, 0.00191711, 0.00241802, 0.00304981,
0.00384668, 0.00485176, 0.00611945
])
vf_oil = np.array([
0.00522565, 0.00788413, 0.01185467, 0.01773296, 0.02631885, 0.03859967,
0.05559785, 0.07791868, 0.10476347, 0.13228731, 0.15193437, 0.15128424,
0.12160947, 0.0710618, 0.02592687
])
assert_approx_equal(spill.get_de_max(0), de_max_gas)
assert_approx_equal(spill.get_de_max(1), de_max_oil)
assert_approx_equal(spill.get_d50(0), d50_gas)
assert_approx_equal(spill.get_d50(1), d50_oil)
assert_array_almost_equal(spill.de_gas, de_gas, decimal=6)
assert_array_almost_equal(spill.vf_gas, vf_gas, decimal=6)
assert_array_almost_equal(spill.de_oil, de_oil, decimal=6)
assert_array_almost_equal(spill.vf_oil, vf_oil, decimal=6)
# Switch gas model to li_etal --------------------------------------------
spill.simulate(d0, model_gas='li_etal')
# Create the particle size distributions
nbins_gas = 10
nbins_oil = 15
de_gas_model, vf_gas_model, de_oil_model, vf_oil_model = \
spill.get_distributions(nbins_gas, nbins_oil)
de_max_gas = 0.031667073026852774
d50_gas = 0.00042029308524755096
d50_oil = 0.004183783481056991
de_gas = np.array([
0.00011944, 0.00015369, 0.00019776, 0.00025447, 0.00032744, 0.00042133,
0.00054215, 0.00069762, 0.00089766, 0.00115507
])
vf_gas = np.array([
0.02515921, 0.06286577, 0.12110766, 0.17987423, 0.20597111, 0.18183759,
0.12376591, 0.0649469, 0.02627579, 0.00819583
])
de_oil = np.array([
0.0004472, 0.00056405, 0.00071143, 0.00089732, 0.00113177, 0.00142749,
0.00180047, 0.00227091, 0.00286426, 0.00361265, 0.00455658, 0.00574714,
0.00724879, 0.00914279, 0.01153166
])
vf_oil = np.array([
0.00522565, 0.00788413, 0.01185467, 0.01773296, 0.02631885, 0.03859967,
0.05559785, 0.07791868, 0.10476347, 0.13228731, 0.15193437, 0.15128424,
0.12160947, 0.0710618, 0.02592687
])
assert_approx_equal(spill.get_de_max(0), de_max_gas)
assert_approx_equal(spill.get_de_max(1), de_max_oil)
assert_approx_equal(spill.get_d50(0), d50_gas)
assert_approx_equal(spill.get_d50(1), d50_oil)
assert_array_almost_equal(spill.de_gas, de_gas, decimal=6)
assert_array_almost_equal(spill.vf_gas, vf_gas, decimal=6)
assert_array_almost_equal(spill.de_oil, de_oil, decimal=6)
assert_array_almost_equal(spill.vf_oil, vf_oil, decimal=6)
# Try a case with no gas -------------------------------------------------
spill.update_z0(1000.)
spill.simulate(d0, model_gas='wang_etal', model_oil='sintef')
# Create the particle size distributions
nbins_gas = 10
nbins_oil = 15
de_gas_model, vf_gas_model, de_oil_model, vf_oil_model = \
spill.get_distributions(nbins_gas, nbins_oil)
de_max_oil = 0.017327034580027646
d50_gas = 0.0
d50_oil = 0.007683693892124441
de_gas = np.array([
np.nan, np.nan, np.nan, np.nan, np.nan, np.nan, np.nan, np.nan, np.nan,
np.nan
])
vf_gas = np.array([0., 0., 0., 0., 0., 0., 0., 0., 0., 0.])
de_oil = np.array([
0.00082131, 0.00103591, 0.00130657, 0.00164796, 0.00207855, 0.00262164,
0.00330664, 0.00417061, 0.00526033, 0.00663478, 0.00836835, 0.01055487,
0.0133127, 0.01679111, 0.02117837
])
vf_oil = np.array([
0.00522565, 0.00788413, 0.01185467, 0.01773296, 0.02631885, 0.03859967,
0.05559785, 0.07791868, 0.10476347, 0.13228731, 0.15193437, 0.15128424,
0.12160947, 0.0710618, 0.02592687
])
assert_approx_equal(spill.get_de_max(1), de_max_oil)
assert_approx_equal(spill.get_d50(0), d50_gas)
assert_approx_equal(spill.get_d50(1), d50_oil)
assert_array_almost_equal(spill.de_gas, de_gas, decimal=6)
assert_array_almost_equal(spill.vf_gas, vf_gas, decimal=6)
assert_array_almost_equal(spill.de_oil, de_oil, decimal=6)
assert_array_almost_equal(spill.vf_oil, vf_oil, decimal=6)
return spill