def denoise(nblck,filename,mode='sym', wv='sym5' ):
from statsmodels.robust import mad
#noisy_coefs = pywt.wavedec(nblck, 'sym5', level=5, mode='per')
noisy_coefs = pywt.wavedec(nblck, wavelet=wv, mode=mode) #level=5, #dwt is for single level decomposition; wavedecoding is for more levels
sigma = mad(noisy_coefs[-1])
#uthresh=np.std(ca)/2
uthresh = sigma*np.sqrt(2*np.log(len(nblck)))
denoised = noisy_coefs[:]
denoised[1:] = [pywt.threshold(i, value=uthresh,mode='soft') for i in denoised[1:]]
signal = pywt.waverec(denoised, wavelet=wv, mode=mode)
from matplotlib import pyplot as plt
fig, axes = plt.subplots(1, 2, sharey=True, sharex=True,figsize=(8,4))
ax1, ax2 = axes
ax1.plot(signal)
#ax1.set_xlim(0,2**10)
ax1.set_title("Recovered Signal")
ax1.margins(.1)
ax2.plot(nblck)
ax2.set_title("Noisy Signal")
for ax in fig.axes:
ax.tick_params(labelbottom=False, top=False, bottom=False, left=False, right=False)
fig.tight_layout()
fig.savefig(filename+'_'+wv+'.pdf')
plt.clf()
return signal
def task_mad(data):
"""
http://statsmodels.sourceforge.net/devel/generated/statsmodels.robust.scale.mad.html
"""
mad_value = mad(data)
return mad_value
def _guerrero_cv(self, x, bounds, window_length=4, scale='sd',
options={'maxiter': 25}):
"""
Computes lambda using guerrero's coefficient of variation. If no
seasonality is present in the data, window_length is set to 4 (as
per Guerrero and Perera, (2004)).
NOTE: Seasonality-specific auxiliaries *should* provide their own
seasonality parameter.
Parameters
----------
x : array_like
bounds : tuple
Numeric 2-tuple, that indicate the solution space for the lambda
parameter.
window_length : int
Seasonality/grouping parameter. Default 4, as per Guerrero and
Perera (2004). NOTE: this indicates the length of the individual
groups, not the total number of groups!
scale : {'sd', 'mad'}
The dispersion measure to be used. 'sd' indicates the sample
standard deviation, but the more robust 'mad' is also available.
options : dict
The options (as a dict) to be passed to the optimizer.
"""
nobs = len(x)
groups = int(nobs / window_length)
# remove the first n < window_length observations from consideration.
grouped_data = np.reshape(x[nobs - (groups * window_length): nobs],
(groups, window_length))
mean = np.mean(grouped_data, 1)
scale = scale.lower()
if scale == 'sd':
dispersion = np.std(grouped_data, 1, ddof=1)
elif scale == 'mad':
dispersion = mad(grouped_data, axis=1)
else:
raise ValueError("Scale '{0}' not understood.".format(scale))
def optim(lmbda):
rat = np.divide(dispersion, np.power(mean, 1 - lmbda)) # eq 6, p 40
return np.std(rat, ddof=1) / np.mean(rat)
res = minimize_scalar(optim,
bounds=bounds,
method='bounded',
options=options)
return res.x
def madnormalize(vector):
"""
Parameters
----------
vector
Returns
-------
"""
demedianed = vector - np.median(vector)
sigmad = mad(demedianed)
if sigmad > 0.0:
return demedianed / sigmad
else:
return demedianed
for lst in [k for k in pickedSubjects.iterkeys() if k.startswith('sr')]:
subjects += pickedSubjects[lst]
poss = np.zeros((len(subjects), 3))
for ii, subj in enumerate(subjects):
raw_file = glob.glob(
op.join(study_dir, 'bad_%s' % subj, 'raw_fif', '*mmn_raw.fif'))[0]
raw = mne.io.read_raw_fif(raw_file, allow_maxshield='yes')
poss[ii] = raw.info['dev_head_t']['trans'][:3, 3]
np.savez_compressed(op.join(study_dir, 'initial_head_poss.npz'),
poss=poss,
subjects=subjects)
poss = np.load(op.join(study_dir, 'initial_head_poss.npz'))['poss']
poss_norm = LA.norm(poss, axis=1)
mad_poss_norm = mad(poss_norm)
'''
Median Absolute deviation
R-blboggers - Absolute Deviation Around the Median
https://www.r-bloggers.com/absolute-deviation-around-the-median/
Boris Iglewicz and David Hoaglin (1993), "Volume 16: How to Detect and
Handle Outliers", The ASQC Basic References in Quality Control:
Statistical Techniques, Edward F. Mykytka, Ph.D., Editor.
'''
# Outliers defined as >/< +/- 3 * MAD
mask = ~np.logical_or(poss_norm > np.median(poss_norm) + 2.5 * mad_poss_norm,
poss_norm < np.median(poss_norm) - 2.5 * mad_poss_norm)
# Figure window dressing
sns.set(style="white", palette="colorblind", color_codes=True)
colors = sns.color_palette()
import numpy as np
import seaborn as sns
import pandas as pd
import matplotlib.pyplot as plt
import math
from statsmodels import robust
col = ['sepal_length', 'sepal_width', 'petal_length', 'petal_width', 'type']
iris = pd.read_csv("iris.xlsx", names=col)
#print(iris)
iris_setosa = iris.loc[iris["type"] == "Iris-setosa"]
iris_virginica = iris.loc[iris["type"] == "Iris-virginica"]
iris_versicolor = iris.loc[iris["type"] == "Iris-versicolor"]
print("Meadian absolute deviations")
print("setosa", robust.mad(iris_setosa["petal_length"]))
print("viriginica", robust.mad(iris_virginica["petal_length"]))
print("versicolor", robust.mad(iris_versicolor["petal_length"]))
def mad(X):
X = np.array(X).astype('float64')
return robust.mad(X)
def make_selection_lookups(
all_series: np.ndarray, pattern_lookups: Dict[int, PatternLookup],
subseries_lookups: Dict[int, Dict[int, SubSeriesLookup]],
sub_clusters: SubClusters, sub_mrfs: SubMRFs
) -> Tuple[Dict[Tuple, np.ndarray], Dict[Tuple, np.ndarray]]:
"""
:param all_series:
:param pattern_lookups:
:param subseries_lookups:
:param sub_clusters:
:param sub_mrfs:
:return:
"""
dispersions: Dict[Tuple, np.ndarray] = {}
modes: Dict[Tuple, np.ndarray] = {}
print("computing selection criteria")
for k in pattern_lookups:
print("k =", k)
for cid in {p.cid for p in pattern_lookups[k]["base"]}:
print(" cid", cid)
ss = [
all_series[p.start_idx:p.end_idx]
for p in pattern_lookups[k]["base"] if p.cid == cid
]
ubiqs = np.array([[
len([x for x in s[:, i] if x > 0]) / len(s)
for i in range(s.shape[1])
] for s in ss])
dispersions[(k, cid, 0)] = np.mean(robust.mad(ubiqs, axis=0))
modes[(k, cid, 0)] = stats.mode(np.round(ubiqs, 1)).mode
if cid not in sub_clusters[k]:
continue
idx_lookup = subseries_lookups[k][cid].idx_lookup
ser = subseries_lookups[k][cid].series
for sub_k in sub_clusters[k][cid]:
if not any(
is_null_cluster(mrf) for mrf in sub_mrfs[k][cid]
[sub_k].values()) or len(idx_lookup) <= sub_k:
continue
ps = pattern_lookups[k][cid][sub_k]
for sub_cid in {p.cid for p in ps}:
ss = [
ser[p.start_idx:p.end_idx] for p in ps
if p.cid == sub_cid
]
ubiqs = np.array([[
len([x for x in s[:, i] if x > 0]) / len(s)
for i in range(s.shape[1])
] for s in ss])
dispersions[(k, cid, sub_k,
sub_cid)] = np.mean(robust.mad(ubiqs, axis=0))
modes[(k, cid, sub_k,
sub_cid)] = stats.mode(np.round(ubiqs, 1)).mode
dispersion_lookup = {
tag: [x[1] for x in sorted(xs)]
for tag, xs in groupby(sorted(dispersions.items()), lambda x: x[0][:3])
}
mode_lookup = {
tag: [x[1] for x in sorted(xs)]
for tag, xs in groupby(sorted(modes.items()), lambda x: x[0][:3])
}
return dispersion_lookup, mode_lookup
def wave(data, wavelet='haar', mode='soft'): #, pyr=0, wav = 0):
"""Wavelet coefficients of the input data, and subsequent pyramide plotting
build using pywt.
threshold is using universal thresholding. Refer to jseabold wavelet regression
http://jseabold.net/blog/2012/02/23/wavelet-regression-in-python/
SYNTAX:
[true_coef, signal, denoised] = wavelets.wave(ava['101'], mode='hard')
INPUT:
data: 1D-array or list with values for wavelets.
wavelet: the mother wavelet. default = 'Haar', refer to pywt.wavelist() for wavelets.
mode: 'hard', 'soft', 'less', refer to pywt.threshold for details.
Output:
true_coef: the coefficients for the original signal.
signal: wavelet transformed data.
denoised: the denoised coefficients.
Ex.
[tr, signal, dn] = wavelets.wave(ava['101'], wavelet='coif16', mode='hard')
"""
true_coefs = pywt.wavedec(data, wavelet, mode='per')
#Evaluate data
#Pyramid plot
'''
if pyr ==1:
fig = cpp.coef_pyramid_plot(true_coefs[1:])
fig.show()
'''
#Calculating Mean-absolute-deviation
sigma = mad(true_coefs[-1])
#Calculating the universal thresholding.
uthresh = sigma * np.sqrt(2 * np.log(len(data)))
#uthresh = sigma*np.sqrt(2*np.log(len(data))/len(data))
#denoising data using universal thresholding, resulting in denoised signal.
denoised = true_coefs[:]
denoised[1:] = (pywt.threshold(i, value=uthresh, mode=mode, substitute=0)
for i in denoised[1:])
signal = pywt.waverec(denoised, wavelet, mode='per')
return true_coefs, signal, denoised
'''
#Number of coefficients
comp = cmpt(denoised)
#Evaluate Chosen Wavelet
#let = pywt.Wavelet(wavelet)
#sca, wave, x = let.wavefun()
'''
'''
def gamma(x, z):
changes = np.empty(T)
for t in range(T):
changes[t] = np.linalg.norm(V_color(x, t) - V_color(z, t))
mad = robust.mad(changes)
return 1 / (1 + (LAMBDA_S * mad))
def prepare_features(window_data):
# trimming
window_data_x = window_data.x[:]
window_data_y = window_data.y[:]
window_data_z = window_data.z[:]
window_data_x[window_data_x > MAX_VAL] = MAX_VAL
window_data_x[window_data_x < MIN_VAL] = MIN_VAL
window_data_y[window_data_y > MAX_VAL] = MAX_VAL
window_data_y[window_data_y < MIN_VAL] = MIN_VAL
window_data_z[window_data_z > MAX_VAL] = MAX_VAL
window_data_z[window_data_z < MIN_VAL] = MIN_VAL
assert np.sum(window_data_x[window_data_x > MAX_VAL]) == 0
assert np.sum(window_data_x[window_data_x < MIN_VAL]) == 0
assert np.sum(window_data_y[window_data_y > MAX_VAL]) == 0
assert np.sum(window_data_y[window_data_y < MIN_VAL]) == 0
assert np.sum(window_data_z[window_data_z > MAX_VAL]) == 0
assert np.sum(window_data_z[window_data_z < MIN_VAL]) == 0
magnitude = np.sqrt(window_data_x**2 + window_data_y**2 + window_data_z**2)
# min
x_min = np.min(window_data_x)
y_min = np.min(window_data_y)
z_min = np.min(window_data_z)
overall_min = np.min(magnitude)
# max
x_max = np.max(window_data_x)
y_max = np.max(window_data_y)
z_max = np.max(window_data_z)
overall_max = np.max(magnitude)
# mean
x_mean = np.mean(window_data_x)
y_mean = np.mean(window_data_y)
z_mean = np.mean(window_data_z)
overall_mean = np.mean(magnitude)
# standard deviation
x_stdev = np.std(window_data_x)
y_stdev = np.std(window_data_y)
z_stdev = np.std(window_data_z)
overall_stdev = np.std(magnitude)
# mean average deviation
x_mad = mad(window_data_x)
y_mad = mad(window_data_y)
z_mad = mad(window_data_z)
overall_mad = mad(magnitude)
# skewness
x_skewness = skew(window_data_x)
y_skewness = skew(window_data_y)
z_skewness = skew(window_data_z)
overall_skewness = skew(magnitude)
# kurtosis
x_kurtosis = kurtosis(window_data_x)
y_kurtosis = kurtosis(window_data_y)
z_kurtosis = kurtosis(window_data_z)
overall_kurtosis = kurtosis(magnitude)
# root mean square amplitude
x_rms_amplitude = np.sqrt(np.abs(np.mean(window_data_x)))
y_rms_amplitude = np.sqrt(np.abs(np.mean(window_data_y)))
z_rms_amplitude = np.sqrt(np.abs(np.mean(window_data_z)))
overall_rms_amplitude = np.sqrt(np.abs(np.mean(magnitude)))
covariance_matrix = np.cov(window_data[['x', 'y', 'z']])
# covariance of two values
x_y_covariance = covariance_matrix[0, 1]
x_z_covariance = covariance_matrix[0, 2]
y_z_covariance = covariance_matrix[1, 2]
# min covariance of two values
min_covariance = np.min([x_y_covariance, x_z_covariance, y_z_covariance])
# max covariance of two values
max_covariance = np.max([x_y_covariance, x_z_covariance, y_z_covariance])
# window energy
x_window_energy = np.sum(window_data_x)
y_window_energy = np.sum(window_data_y)
z_window_energy = np.sum(window_data_z)
overall_window_energy = np.sum(magnitude)
# window entropy
# x_window_entropy = entropy(window_data.x)
# y_window_entropy = entropy(window_data.y)
# z_window_entropy = entropy(window_data.z)
# min_window_entropy = np.min([
# x_window_entropy, y_window_entropy, z_window_entropy])
# max_window_entropy = np.max([
# x_window_entropy, y_window_entropy, z_window_entropy])
# overall_window_entropy = entropy(magnitude)
# Fourier transform
frequency_component_amplitudes = np.fft.fft(magnitude).real
# spectral centroid
x_spectral_centroid = spectral_centroid(window_data_x)
y_spectral_centroid = spectral_centroid(window_data_y)
z_spectral_centroid = spectral_centroid(window_data_z)
overall_spectral_centroid = spectral_centroid(magnitude)
# spectral energy
x_spectral_energy = np.sum(np.fft.fft(window_data_x).real)
y_spectral_energy = np.sum(np.fft.fft(window_data_y).real)
z_spectral_energy = np.sum(np.fft.fft(window_data_z).real)
overall_spectral_energy = np.sum(frequency_component_amplitudes)
# spectral entropy
# x_spectral_entropy = entropy(np.fft.fft(window_data.x).real)
# y_spectral_entropy = entropy(np.fft.fft(window_data.y).real)
# z_spectral_entropy = entropy(np.fft.fft(window_data.z).real)
# overall_spectral_entropy = entropy(frequency_component_amplitudes)
features = (
x_min,
y_min,
z_min,
overall_min,
x_max,
y_max,
z_max,
overall_max,
x_mean,
y_mean,
z_mean,
overall_mean,
x_stdev,
y_stdev,
z_stdev,
overall_stdev,
x_mad,
y_mad,
z_mad,
overall_mad,
x_skewness,
y_skewness,
z_skewness,
overall_skewness,
x_kurtosis,
y_kurtosis,
z_kurtosis,
overall_kurtosis,
x_rms_amplitude,
y_rms_amplitude,
z_rms_amplitude,
overall_rms_amplitude,
x_y_covariance,
x_z_covariance,
y_z_covariance,
min_covariance,
max_covariance,
x_window_energy,
y_window_energy,
z_window_energy,
overall_window_energy,
# x_window_entropy, y_window_entropy, z_window_entropy,
# min_window_entropy, max_window_entropy,
# overall_window_entropy,
x_spectral_centroid,
y_spectral_centroid,
z_spectral_centroid,
overall_spectral_centroid,
x_spectral_energy,
y_spectral_energy,
z_spectral_energy,
overall_spectral_energy,
# x_spectral_entropy, y_spectral_entropy, z_spectral_entropy,
# overall_spectral_entropy
)
features += tuple(frequency_component_amplitudes)
return features
def add_robust_features(df):
df['X_95_quantile'] = np.array(
[np.quantile(df.iloc[i].X, 0.95) for i in range(len(df))])
df['X_mad'] = np.array([robust.mad(df.iloc[i].X) for i in range(len(df))])
return df
def dev_func(vector, parametric=False):
if parametric:
return np.std(vector)
else:
return mad(vector, c=1)
def get_sta_median(v_APs):
sta = np.median(v_APs, 0)
sta_mad = mad(v_APs, axis=0)
return sta, sta_mad
def fit(self,X,*args,**kwargs):
"""
Fit a projection pursuit dimension reduction model.
Required input argument: X data as matrix or data frame
Optinal input arguments:
arg or kwarg:
y data as vector or 1D matrix
kwargs:
h, int: option to overrule class's n_components parameter in fit.
Convenient command line, yet should not be used in automated
loops, e.g. cross-validation.
dmetric, str: distance metric used internally. Defaults to 'euclidean'
mixing, bool: to estimate mixing matrix (only relevant for ICA)
Further parameters to the regression methods can be passed on
here as well as kwargs, e.g. quantile=0.8 for quantile regression.
kwargs only relevant if y specified:
"""
# Collect optional fit arguments
biascorr = kwargs.pop('biascorr',False)
if 'h' not in kwargs:
h = self.n_components
else:
h = kwargs.pop('h')
self.n_components = h
if 'dmetric' not in kwargs:
dmetric = 'euclidean'
else:
dmetric = kwargs.get('dmetric')
if 'mixing' not in kwargs:
mixing = False
else:
mixing = kwargs.get('mixing')
if 'y' not in kwargs:
na = len(args)
if na > 0: #Use of *args makes it sklearn consistent
flag = 'two-block'
y = args[0]
else:
flag = 'one-block'
y = 0 # to allow calls with 'y=y' in spit of no real y argument present
else:
flag = 'two-block'
y = kwargs.get('y')
if 'quantile' not in kwargs:
quantile = .5
else:
quantile = kwargs.get('quantile')
if self.regopt == 'robust':
if 'fun' not in kwargs:
fun = 'Hampel'
else:
fun = kwargs.get('fun')
if 'probp1' not in kwargs:
probp1 = 0.95
else:
probp1 = kwargs.get('probp1')
if 'probp2' not in kwargs:
probp2 = 0.975
else:
probp2 = kwargs.get('probp2')
if 'probp3' not in kwargs:
probp3 = 0.99
else:
probp3 = kwargs.get('probp3')
if self.projection_index == dicomo:
if self.pi_arguments['mode'] in ('M3','cos','c*k'):
if 'option' not in kwargs:
option = 1
else:
option = kwargs.get('option')
if option > 3:
print('Option value >3 will compute results, but meaning may be questionable')
# Initiate projection index
self.most = self.projection_index(**self.pi_arguments)
# Initiate some parameters and data frames
if self.copy:
X0 = copy.deepcopy(X)
self.X0 = X0
else:
X0 = X
X = convert_X_input(X0)
n,p = X0.shape
trimming = self.trimming
# Check dimensions
if h > min(n,p):
raise(MyException('number of components cannot exceed number of samples'))
if (self.projection_index == dicomo and self.pi_arguments['mode'] == 'kurt' and self.whiten_data==False):
warnings.warn('Whitening step is recommended for ICA')
# Pre-processing adjustment if whitening
if self.whiten_data:
self.center_data = True
self.scale_data = False
self.compression = False
print('All results produced are for whitened data')
# Centring and scaling
if self.scale_data:
if self.center=='mean':
scale = 'std'
elif ((self.center=='median')|(self.center=='l1median')):
scale = 'mad'
else:
scale = 'None'
warnings.warn('Without scaling, convergence to optima is not given')
# Data Compression for flat tables if required
if ((p>n) and self.compression):
V,S,U = np.linalg.svd(X.T,full_matrices=False)
X = np.matmul(U.T,np.diag(S))
n,p = X.shape
if (srs.mad(X)==0).any():
warnings.warn('Due to low scales in data, compression would induce zero scales.'
+ '\n' + 'Proceeding without compression.')
dimensions = False
if copy:
X = copy.deepcopy(X0)
else:
X = X0
else:
dimensions = True
else:
dimensions = False
# Initiate centring object and scale X data
centring = VersatileScaler(center=self.center,scale=scale,trimming=trimming)
if self.center_data:
Xs = centring.fit_transform(X)
mX = centring.col_loc_
sX = centring.col_sca_
else:
Xs = X
mX = np.zeros((1,p))
sX = np.ones((1,p))
fit_arguments = {}
# Data whitening (best practice for ICA)
if self.whiten_data:
V,S,U = np.linalg.svd(Xs.T,full_matrices=False)
del U
K = (V/S)[:,:p]
del V,S
Xs = np.matmul(Xs, K)
Xs *= np.sqrt(p)
# Presently, X and y need to be matrices
# Will be changed to use regular np.ndarray
Xs = np.matrix(Xs)
# Pre-process y data when available
if flag != 'one-block':
ny = y.shape[0]
y = convert_y_input(y)
if len(y.shape) < 2:
y = np.matrix(y).reshape((ny,1))
# py = y.shape[1]
if ny != n:
raise(MyException('X and y number of rows must agree'))
if self.copy:
y0 = copy.deepcopy(y)
self.y0 = y0
if self.center_data:
ys = centring.fit_transform(y)
my = centring.col_loc_
sy = centring.col_sca_
else:
ys = y
my = 0
sy = 1
ys = np.matrix(ys).astype('float64')
else:
ys = None
# Initializing output matrices
W = np.zeros((p,h))
T = np.zeros((n,h))
P = np.zeros((p,h))
B = np.zeros((p,h))
R = np.zeros((p,h))
B_scaled = np.zeros((p,h))
C = np.zeros((h,1))
Xev = np.zeros((h,1))
assovec = np.zeros((h,1))
Maxobjf = np.zeros((h,1))
# Initialize deflation matrices
E = copy.deepcopy(Xs)
f = ys
bi = np.zeros((p,1))
opt_args = {
'alpha': self.alpha,
'trimming': self.trimming,
'biascorr': biascorr,
'dmetric' : 'euclidean',
}
if self.optimizer=='grid':
# Define grid optimization ranges
if 'ndir' not in self.optimizer_options:
self.optimizer_options['ndir'] = 1000
optrange = np.sign(self.optrange)
optmax = self.optrange[1]
stop0s = np.arcsin(optrange[0])
stop1s = np.arcsin(optrange[1])
stop1c = np.arccos(optrange[0])
stop0c = np.arccos(optrange[1])
anglestart = max(stop0c,stop0s)
anglestop = max(stop1c,stop1s)
nangle = np.linspace(anglestart,anglestop,self.optimizer_options['ndir'],endpoint=False)
alphamat = np.matrix([np.cos(nangle), np.sin(nangle)])
opt_args['_stop0c'] = stop0c
opt_args['_stop0s'] = stop0s
opt_args['_stop1c'] = stop1c
opt_args['_stop1s'] = stop1s
opt_args['optmax'] = optmax
opt_args['optrange'] = self.optrange
opt_args['square_pi'] = self.square_pi
if optmax != 1:
alphamat *= optmax
if p>2:
anglestart = min(opt_args['_stop0c'],opt_args['_stop0s'])
anglestop = min(opt_args['_stop1c'],opt_args['_stop1s'])
nangle = np.linspace(anglestart,anglestop,self.optimizer_options['ndir'],endpoint=True)
alphamat2 = np.matrix([np.cos(nangle), np.sin(nangle)])
if optmax != 1:
alphamat2 *= opt_args['optmax']
# Arguments for grid plane
opt_args['alphamat'] = alphamat,
opt_args['ndir'] = self.optimizer_options['ndir'],
opt_args['maxiter'] = self.optimizer_options['maxiter']
if type(opt_args['ndir'] is tuple):
opt_args['ndir'] = opt_args['ndir'][0]
# Arguments for grid plane #2
grid_args_2 = {
'alpha': self.alpha,
'alphamat': alphamat2,
'ndir': self.optimizer_options['ndir'],
'trimming': self.trimming,
'biascorr': biascorr,
'dmetric' : 'euclidean',
'_stop0c' : stop0c,
'_stop0s' : stop0s,
'_stop1c' : stop1c,
'_stop1s' : stop1s,
'optmax' : optmax,
'optrange' : self.optrange,
'square_pi' : self.square_pi
}
if flag=='two-block':
grid_args_2['y'] = f
if flag=='two-block':
opt_args['y'] = f
# Itertive coefficient estimation
for i in range(0,h):
if self.optimizer=='grid':
if p==2:
wi,maximo = gridplane(E,self.most,
pi_arguments=opt_args
)
elif p>2:
afin = np.zeros((p,1)) # final parameters for linear combinations
Z = copy.deepcopy(E)
# sort variables according to criterion
meas = [self.most.fit(E[:,k],
**opt_args)
for k in np.arange(0,p)]
if self.square_pi:
meas = np.square(meas)
wi,maximo = gridplane(Z[:,0:2],self.most,opt_args)
Zopt = Z[:,0:2]*wi
afin[0:2]=wi
for j in np.arange(2,p):
projmat = np.matrix([np.array(Zopt[:,0]).reshape(-1),
np.array(Z[:,j]).reshape(-1)]).T
wi,maximo = gridplane(projmat,self.most,
opt_args
)
Zopt = Zopt*float(wi[0]) + Z[:,j]*float(wi[1])
afin[0:(j+1)] = afin[0:(j+1)]*float(wi[0])
afin[j] = float(wi[1])
tj = Z*afin
objf = self.most.fit(tj,
**{**fit_arguments,**opt_args}
)
if self.square_pi:
objf *= objf
# outer loop to run until convergence
objfold = copy.deepcopy(objf)
objf = -1000
afinbest = afin
ii = 0
maxiter_2j = 2**round(np.log2(self.optimizer_options['maxiter']))
while ((ii < self.optimizer_options['maxiter'] + 1) and (abs(objfold - objf)/abs(objf) > 1e-4)):
for j in np.arange(0,p):
projmat = np.matrix([np.array(Zopt[:,0]).reshape(-1),
np.array(Z[:,j]).reshape(-1)]).T
if j > 16:
divv = maxiter_2j
else:
divv = min(2**j,maxiter_2j)
wi,maximo = gridplane_2(projmat,
self.most,
q=afin[j],
div=divv,
pi_arguments=grid_args_2
)
Zopt = Zopt*float(wi[0,0]) + Z[:,j]*float(wi[1,0])
afin *= float(wi[0,0])
afin[j] += float(wi[1,0])
# % evaluate the objective function:
tj = Z*afin
objfold = copy.deepcopy(objf)
objf = self.most.fit(tj,
q=afin,
**opt_args
)
if self.square_pi:
objf *= objf
if objf!=objfold:
if self.constraint == 'norm':
afinbest = afin/np.sqrt(np.sum(np.square(afin)))
else:
afinbest = afin
ii +=1
if self.verbose:
print(str(ii))
#endwhile
afinbest = afin
wi = np.zeros((p,1))
wi = afinbest
Maxobjf[i] = objf
# endif;%if p>2;
else: # do not optimize by the grid algorithm
if self.trimming > 0:
warnings.warn('Optimization that involves a trimmed objective is not a quadratic program. The scipy-optimize result will be off!!')
if 'center' in self.pi_arguments:
if (self.pi_arguments['center']=='median'):
warnings.warn('Optimization that involves a median in the objective is not a quadratic program. The scipy-optimize result will be off!!')
constraint = {'type':'eq',
'fun': lambda x: np.linalg.norm(x) -1,
}
if len(self.optimizer_constraints)>0:
constraint = [constraint,self.optimizer_constraints]
wi = minimize(pp_objective,
E[0,:].transpose(),
args=(self.most,E,opt_args),
method=self.optimizer,
constraints=constraint,
options=self.optimizer_options).x
wi = np.matrix(wi).reshape((p,1))
wi /= np.sqrt(np.sum(np.square(wi)))
# Computing projection weights and scores
ti = E*wi
if self.optimizer != 'grid':
Maxobjf[i] = self.most.fit(E*wi,**opt_args)
nti = np.linalg.norm(ti)
pi = E.T*ti / (nti**2)
if self.whiten_data:
wi /= np.sqrt((wi**2).sum())
wi = K*wi
wi0 = wi
wi = np.array(wi)
if len(W[:,i].shape) == 1:
wi = wi.reshape(-1)
W[:,i] = wi
T[:,i] = np.array(ti).reshape(-1)
P[:,i] = np.array(pi).reshape(-1)
if flag != 'one-block':
criteval = self.most.fit(E*wi0,
**opt_args
)
if self.square_pi:
criteval *= criteval
assovec[i] = criteval
# Deflation of the datamatrix guaranteeing orthogonality restrictions
E -= ti*pi.T
# Calculate R-Weights
R = np.dot(W[:,0:(i+1)],pinv2(np.dot(P[:,0:(i+1)].T,W[:,0:(i+1)]),check_finite=False))
# Execute regression y~T if y is present. Generate regression estimates.
if flag != 'one-block':
if self.regopt=='OLS':
ci = np.dot(ti.T,ys)/(nti**2)
elif self.regopt == 'robust':
linfit = rm(fun=fun,probp1=probp1,probp2=probp2,probp3=probp3,
centre=self.center,scale=scale,
start_cutoff_mode='specific',verbose=self.verbose)
linfit.fit(ti,ys)
ci = linfit.coef_
elif self.regopt == 'quantile':
linfit = QuantReg(y,ti)
model = linfit.fit(q=quantile)
ci = model.params
# end regression if
C[i] = ci
bi = np.dot(R,C[0:(i+1)])
bi_scaled = bi
bi = np.multiply(np.reshape(sy/sX,(p,1)),bi)
B[:,i] = bi[:,0]
B_scaled[:,i] = bi_scaled[:,0]
# endfor; Loop for latent dimensions
# Re-adjust estimates to original dimensions if data have been compressed
if dimensions:
B = np.matmul(V[:,0:p],B)
B_scaled = np.matmul(V[:,0:p],B_scaled)
R = np.matmul(V[:,0:p],R)
W = np.matmul(V[:,0:p],W)
P = np.matmul(V[:,0:p],P)
bi = B[:,h-1]
if self.center_data:
Xs = centring.fit_transform(X0)
mX = centring.col_loc_
sX = centring.col_sca_
else:
Xs = X0
mX = np.zeros((1,p))
sX = np.ones((1,p))
bi = bi.astype("float64")
if flag != 'one-block':
# Calculate scaled and unscaled intercepts
if dimensions:
X = convert_X_input(X0)
if(self.center == "mean"):
intercept = sps.trim_mean(y - np.matmul(X,bi),trimming)
else:
intercept = np.median(np.reshape(y - np.matmul(X,bi),(-1)))
yfit = np.matmul(X,bi) + intercept
if not(scale == 'None'):
if (self.center == "mean"):
b0 = np.mean(ys - np.matmul(Xs.astype("float64"),bi))
else:
b0 = np.median(np.array(ys.astype("float64") - np.matmul(Xs.astype("float64"),bi)))
else:
b0 = intercept
# Calculate fit values and residuals
yfit = yfit
r = y - yfit
setattr(self,"coef_",B)
setattr(self,"intercept_",intercept)
setattr(self,"coef_scaled_",B_scaled)
setattr(self,"intercept_scaled_",b0)
setattr(self,"residuals_",r)
setattr(self,"fitted_",yfit)
setattr(self,"y_loadings_",C)
setattr(self,"y_loc_",my)
setattr(self,"y_sca_",sy)
setattr(self,"x_weights_",W)
setattr(self,"x_loadings_",P)
setattr(self,"x_rotations_",R)
setattr(self,"x_scores_",T)
setattr(self,"x_ev_",Xev)
setattr(self,"crit_values_",assovec)
setattr(self,"Maxobjf_",Maxobjf)
if self.whiten_data:
setattr(self,"whitening_",K)
if mixing:
setattr(self,"mixing_",np.linalg.pinv(W))
setattr(self,"x_loc_",mX)
setattr(self,"x_sca_",sX)
setattr(self,'scaling',scale)
if self.return_scaling_object:
setattr(self,'scaling_object_',centring)
return(self)
from statsmodels import robust
url = "winequality-red.csv"
names = [
'Fixed Acidity', 'Volatile Acidity', 'Citric Acid', 'Residual Sugar',
'Chlorides', 'Free SO2', 'Total SO2', 'Density', 'pH', 'Sulphates',
'ALC by Vol', 'Quality'
]
data = pandas.read_csv(url, names=names)
print np.mean(data)
print "\n"
print "Median of all Attributes:"
print(np.median(data, axis=0))
print "\n"
print "Standard Deviation of all Attributes:"
print np.std(data, axis=0)
print "\n"
mad = robust.mad(data, axis=0)
print "MAD of the attributes given is: "
print mad
print "\n"
max_data = np.max(data, axis=0)
min_data = np.min(data, axis=0)
print "Maximum and minimum data points are given below:"
print max_data
print "\n"
print min_data
print data['Quality']
def lcStats(F_fileName, Fstat_fileName, S_fileName=None, filter=True):
fPhot = open(F_fileName)
fStat = open(Fstat_fileName, 'w')
eof = False
activeField = 0
activeTile = 0
lcDict = {}
if S_fileName is not None:
starData = np.loadtxt(S_fileName, delimiter=';', dtype=str)
sTile = starData[:, 1].astype(int)
sSeq = starData[:, 2].astype(int)
sRchunk = starData[:, 7].astype(int)
raDecPat = re.compile('\(([0-9-\.]+),([0-9-\.]+)\)')
while not eof:
photLine = fPhot.readline()
if photLine == '':
eof = True
else:
photFields = string.split(photLine, ';')
field = int(photFields[1])
tile = int(photFields[2])
seq = int(photFields[3])
rmag = float(photFields[9])
rerr = float(photFields[10])
bmag = float(photFields[24])
berr = float(photFields[25])
if filter:
if rmag <= -15 or bmag <= -15 or rmag > -2 or bmag > -2 or rerr < 0 or berr < 0:
continue
if field != activeField or tile != activeTile:
if activeField == 0:
activeField = field
activeTile = tile
else:
# error exit
sys.exit('Input not all same field and tile')
if lcDict.has_key(seq):
lc = lcDict[seq]
lc[0].append(rmag)
lc[1].append(bmag)
lc[2].append(rerr)
lc[3].append(berr)
lcDict[seq] = lc
else:
lcDict[seq] = [[rmag], [bmag], [rerr], [berr]]
if debug:
print lcDict
if S_fileName is not None:
fStat.write(
'# F T S Rchunk RA DEC Rmed Rmad RmeanErr Vmed Vmad VmeanErr WScoeff WScoeffp\n'
)
else:
fStat.write(
'# F T S Rmed Rmad RmeanErr Vmed Vmad VmeanErr WScoeff WScoeffp\n')
for seq in lcDict.keys():
lc = lcDict[seq]
lcr = np.array(lc[0])
lcb = np.array(lc[1])
lcrerr = lc[2]
lcberr = lc[3]
lcrMedian = np.median(lcr)
lcrStdev = mad(lcr, center=lcrMedian)
lcrAverr = np.median(lcrerr)
lcbMedian = np.median(lcb)
lcbStdev = mad(lcb, center=lcbMedian)
lcbAverr = np.median(lcberr)
bMinusR = lcb - lcr
wsCoeff, wsCoeffp = pearsonr(lcb - lcbMedian, lcr - lcrMedian)
if S_fileName is not None:
idStar = np.where((sTile == tile) & (sSeq == seq))
if len(idStar[0]) == 0:
print 'Star fts %d %d %d not found in Star file' % (field,
tile, seq)
raise ValueError
thisStar = starData[idStar, :][0][0]
redChunk = int(thisStar[7])
raHMS = Angle(thisStar[3] + ' hours')
decDMS = Angle(thisStar[4] + ' degrees')
raDeg = raHMS.degree
decDeg = decDMS.degree
outputLine = '%d %d %d %d %.5f %.5f %.3f %.3f %.3f %.3f %.3f %.3f %.3f %.3f\n' % (
field, tile, seq, redChunk, raDeg, decDeg, lcrMedian, lcrStdev,
lcrAverr, lcbMedian, lcbStdev, lcbAverr, wsCoeff, wsCoeffp)
else:
outputLine = '%d %d %d %.3f %.3f %.3f %.3f %.3f %.3f %.3f %.3f\n' % (
field, tile, seq, lcrMedian, lcrStdev, lcrAverr, lcbMedian,
lcbStdev, lcbAverr, wsCoeff, wsCoeffp)
fStat.write(outputLine)
fStat.close()
usedur[idx] = 5.0
ts = fed.timeseries(uowStart, uowEnd)
skylineData = np.zeros_like(ts.ephemCentral, dtype=np.int64)
print('alpha')
for i in range(len(alltic)):
curTic = alltic[i]
curper = useper[i]
curepc = useepc[i]
curdur = usedur[i]
ts = ts.makeEphemVector(curper,curepc,curdur)
skylineData = skylineData + np.copy(ts.ephemFull)
medSkyline = np.median(skylineData)
madSkyline = robust.mad(skylineData)
tmp = np.arange(len(skylineData))
plt.plot(tmp, skylineData, '.')
idxBad = np.where((skylineData-medSkyline)/madSkyline > 2.75)[0]
plt.plot(tmp[idxBad], skylineData[idxBad], '.r')
plt.show()
for j in idxBad:
fout.write('{:11.5f}\n'.format(ts.ts[j]))
fout.close()
print('hello world')
def tpf_resamp(file, fileOut, RESAMP, lcFile):
""" Resample TESS target pixel file and save as h5d format
resamp - Resample factor just make it odd okay"""
hdulist = fits.open(file)
arr = hdulist[1].data[0]['FLUX']
nImage = len(hdulist[1].data[:]['CADENCENO'])
shp = arr.shape
nx = shp[0]
ny = shp[1]
saturate_pixel = np.zeros((nx, ny), dtype=int)
median_image = np.zeros((nx, ny))
# Get header information that we should keep
keepprihdr = ['TICID','SECTOR','CAMERA','CCD','PXTABLE','RA_OBJ', \
'DEC_OBJ','PMRA','PMDEC','PMTOTAL','TESSMAG','TEFF', \
'LOGG','RADIUS']
formatprihdr = [np.uint32, int, int, int,int, \
float,float,float,float,float, \
float,float,float,float,float]
keep1hdr = ['1CRV4P', '2CRV4P', '1CRPX4', '2CRPX4']
format1hdr = [int, int, float, float]
cadenceNo = hdulist[1].data[:]['CADENCENO']
timetbjd = hdulist[1].data[:]['TIME']
flux_array = hdulist[1].data[:]['FLUX']
flux_bkg_array = hdulist[1].data[:]['FLUX_BKG']
dq_flag = hdulist[1].data[:]['QUALITY']
f = h5py.File(lcFile, 'r')
cadNo = np.array(f['cadenceNo'])
cadNoBeg = np.array(f['cadenceNoBeg'])
cadNoEnd = np.array(f['cadenceNoEnd'])
ia, ib = cjb.intersect(cadNoBeg, cadenceNo)
# In rare instances the light curve data doesnt exist for this sector and
# ib will be empty causeing error if so
# just return and do nothing for this sector
try:
frstIdx = ib[0]
except:
return
ia, ib = cjb.intersect(cadNoEnd, cadenceNo)
endIdx = ib[-1]
#Make a fix for Sector 3 where not all cadences were used
# in the backend DV
#idx = np.where((cadenceNo>=114115) & (cadenceNo<=128706))[0]
#nImage = len(idx)
#cadenceNo, timetbjd, dq_flag = idx_filter(idx, cadenceNo, timetbjd, dq_flag)
#flux_array = flux_array[idx, :, :]
#flux_bkg_array = flux_bkg_array[idx, :, :]
# trim off the excess images not integral into resamp
cadenceNo = cadenceNo[frstIdx:endIdx + 1]
timetbjd = timetbjd[frstIdx:endIdx + 1]
flux_array = flux_array[frstIdx:endIdx + 1, :, :]
flux_bkg_array = flux_bkg_array[frstIdx:endIdx + 1, :, :]
dq_flag = dq_flag[frstIdx:endIdx + 1]
newNImage = len(cadenceNo) // RESAMP
# Do downsampling of data stream
cadenceNo = np.mean(np.reshape(cadenceNo, (newNImage, RESAMP)),
axis=1,
dtype=int)
timetbjd = np.mean(np.reshape(timetbjd, (newNImage, RESAMP)), axis=1)
flux_array = np.sum(np.reshape(flux_array, (newNImage, RESAMP, nx, ny)),
axis=1)
flux_bkg_array = np.sum(np.reshape(flux_bkg_array,
(newNImage, RESAMP, nx, ny)),
axis=1)
dq_flag = np.sum(np.reshape(dq_flag, (newNImage, RESAMP)),
axis=1,
dtype=int)
# Identify data that is missing or NaN
idx = np.where((np.isfinite(timetbjd))
& (np.isfinite(np.squeeze(flux_array[:, 0, 0])))
& (np.isfinite(np.squeeze(flux_bkg_array[:, 0, 0]))))[0]
valid_data_flag = np.zeros((newNImage, ), dtype=np.bool_)
valid_data_flag[idx] = True
# Identify saturated pixels
for i in range(nx):
for j in range(ny):
curflux = flux_array[:, i, j]
diff_flux = np.diff(curflux[valid_data_flag])
robmad = robust.mad(diff_flux)
medval = np.median(curflux[valid_data_flag])
median_image[i, j] = medval
if medval > 1000.0 and np.log10(robmad / medval) < -3.5:
saturate_pixel[i, j] = 1
# print("Saturated Pixel detected x: {0:d} y: {1:d}".format(i, j))
# Now save data as h5py
epic = hdulist[0].header['TICID']
sec = hdulist[0].header['SECTOR']
# fileoutput = os.path.join(make_data_dirs(dirOut,sec,epic), 'tess_tpf_{0:016d}.h5d'.format(epic))
f = h5py.File(fileOut, 'w')
tmp = f.create_dataset('cadenceNo', data=cadenceNo, compression='gzip')
tmp = f.create_dataset('timetbjd', data=timetbjd, compression='gzip')
tmp = f.create_dataset('flux_array', data=flux_array, compression='gzip')
tmp = f.create_dataset('flux_bkg_array',
data=flux_bkg_array,
compression='gzip')
tmp = f.create_dataset('dq_flag', data=dq_flag, compression='gzip')
tmp = f.create_dataset('valid_data_flag',
data=valid_data_flag,
compression='gzip')
tmp = f.create_dataset('saturate_pixel',
data=saturate_pixel,
compression='gzip')
tmp = f.create_dataset('median_image',
data=median_image,
compression='gzip')
# Now make many datasets from the header parameters
for i in range(len(keepprihdr)):
curval = hdulist[0].header[keepprihdr[i]]
if np.isscalar(curval):
tmp = f.create_dataset(keepprihdr[i],
data=np.array(
[hdulist[0].header[keepprihdr[i]]],
dtype=formatprihdr[i]))
else:
tmp = f.create_dataset(keepprihdr[i],
data=np.array([-1], dtype=formatprihdr[i]))
for i in range(len(keep1hdr)):
curval = hdulist[1].header[keep1hdr[i]]
if np.isscalar(curval):
tmp = f.create_dataset(keep1hdr[i],
data=np.array(
[hdulist[1].header[keep1hdr[i]]],
dtype=format1hdr[i]))
else:
tmp = f.create_dataset(keep1hdr[i],
data=np.array([-1], dtype=format1hdr[i]))
f.close()
Asimetria_Colombia = []
MAD_Colombia = []
TriMd = []
YK_Colombia = []
for i in range(len(time)):
Mapa_Colombia = precip[i, Colombia_Lat, :]
Mapa_Colombia = Mapa_Colombia[:, Colombia_Lon]
Mapa_NoNaN_Colombia = Mapa_Colombia[np.isfinite(Mapa_Colombia)]
Media_Colombia.append(np.mean(Mapa_NoNaN_Colombia))
Mediana_Colombia.append(np.median(Mapa_NoNaN_Colombia))
Desviacion_Colombia.append(np.std(Mapa_NoNaN_Colombia))
Curtosis_Colombia.append(scipy.stats.kurtosis(Mapa_NoNaN_Colombia))
Asimetria_Colombia.append(stats.skew(Mapa_NoNaN_Colombia))
MAD_Colombia.append(robust.mad(Mapa_NoNaN_Colombia))
#TriMd_Colombia.append(np.median(Mapa_NoNaN_Colombia))
#YK_Colombia.append(np.median(Mapa_NoNaN_Colombia))
Media_Colombia = np.array(Media_Colombia)
Mediana_Colombia = np.array(Mediana_Colombia)
Desviacion_Colombia = np.array(Desviacion_Colombia)
Curtosis_Colombia = np.array(Curtosis_Colombia)
Asimetria_Colombia = np.array(Asimetria_Colombia)
MAD_Colombia = np.array(MAD_Colombia)
Meses = np.array([fechas[i].month for i in range(len(fechas))])
Colombia_Media_mensual = np.zeros([12]) * np.NaN
Colombia_Mediana_mensual = np.zeros([12]) * np.NaN
Colombia_Desviacion_mensual = np.zeros([12]) * np.NaN
def _mad(x):
return smrb.mad(x)
def normalize_mad(x):
x = np.array(x, dtype=np.float32)
med = np.median(x, axis=0)
mad = robust.mad(x, axis=0)
return (x - med) / (mad * 2) # 2 is for having smaller values
print('Airbone:', numpy.median(Airborne))
print('Aquatic:', numpy.median(Aquatic))
print('Predator:', numpy.median(Predator))
print('Toothed:', numpy.median(Toothed))
print('Backbone:', numpy.median(Backbone))
print('Breathes:', numpy.median(Breathes))
print('Venomous:', numpy.median(Venomous))
print('Fins:', numpy.median(Fins))
print('Legs:', numpy.median(Legs))
print('Tail:', numpy.median(Tail))
print('Domestic:', numpy.median(Domestic))
print('Catsize:', numpy.median(Catsize))
print('Type:', numpy.median(Type))
print('\n')
print('MAD:')
print('Hair:', robust.mad(Hair))
print('Feather:', robust.mad(Feather))
print('Eggs:', robust.mad(Eggs))
print('Milk:', robust.mad(Milk))
print('Airbone:', robust.mad(Airborne))
print('Aquatic:', robust.mad(Aquatic))
print('Predator:', robust.mad(Predator))
print('Toothed:', robust.mad(Toothed))
print('Backbone:', robust.mad(Backbone))
print('Breathes:', robust.mad(Breathes))
print('Venomous:', robust.mad(Venomous))
print('Fins:', robust.mad(Fins))
print('Legs:', robust.mad(Legs))
print('Tail:', robust.mad(Tail))
print('Domestic:', robust.mad(Domestic))
print('Catsize:', robust.mad(Catsize))
def find_noisy_channels(raw, linenoise):
""" High-pass filters, detrends, and removes line noise from the EEG data. Additionally
finds channels having Nans, no data, unusually high amplitudes poor correlation,
high-frequency noise, and bad correlation in the low frequency portion of the signal
using RANSAC.
Inspired by the PREP pipleine [1]. Fischler and Bolles RANSAC method was used for
finding outlier channels [2].
Parameters
__________
raw: raw mne object
contains the EEG data and other information related to it
linenoise: int
line frequency that needs to be removed by notch filtering
Raises
______
IOE error
If too few channels are present to perfom RANSAC
Returns
_______
noisy_channels: list of string
list of the names of all the bad channels
References
__________
[1] Bigdely-Shamlo, N., Mullen, T., Kothe, C., Su, K., & Robbins, K. (2015).
The PREP pipeline: standardized preprocessing for large-scale EEG analysis.
Frontiers In Neuroinformatics, 9. doi: 10.3389/fninf.2015.00016
[2] Fischler, M., & Bolles, R. (1981). Random sample consensus: a paradigm
for model fitting with applications to image analysis and automated
cartography. Communications Of The ACM, 24(6), 381-395. doi: 10.1145/358669.358692
"""
EEGData = raw.get_data()
ch_names_original = raw.info["ch_names"]
sample_rate = raw.info["sfreq"]
mne.filter.filter_data(EEGData,sample_rate, 1, None, picks=None,
filter_length="auto", l_trans_bandwidth="auto",
h_trans_bandwidth="auto", n_jobs=1,
method="fir", iir_params=None,
copy=True,phase="zero",fir_window="hamming",
fir_design="firwin",pad="reflect_limited",
verbose=None)
EEGData = signal.detrend(EEGData)
# removing line noise
mne.filter.notch_filter(EEGData,sample_rate,linenoise,filter_length="auto",
notch_widths=None,trans_bandwidth=1,method="fir",
iir_params=None,mt_bandwidth=None,
p_value=0.05,picks=None,n_jobs=1,copy=True,phase="zero",
fir_window="hamming",ir_design="firwin",pad="reflect_limited",
verbose=None)
# finding channels with NaNs or constant values for long periods of time
original_dimensions = np.shape(EEGData)
original_channels = np.arange(original_dimensions[0])
channels_interpolate = original_channels
nan_channel_mask = [False] * original_dimensions[0]
no_signal_channel_mask = [False] * original_dimensions[0]
for i in range(0, original_dimensions[0]):
nan_channel_mask[i] = np.sum(np.isnan(EEGData[i, :])) > 0
for i in range(0, original_dimensions[0]):
no_signal_channel_mask[i] = robust.mad(EEGData[i, :]) < 10 ** (-10) or np.std(
EEGData[i, :]) < 10 ** (-10)
nan_channels = channels_interpolate[nan_channel_mask]
no_data_channels = channels_interpolate[no_signal_channel_mask]
for i in range(0, original_dimensions[0]):
if nan_channel_mask[i] == True or no_signal_channel_mask[i] == True:
EEGData = np.delete(EEGData, i, axis=0)
nans_no_data_channels = np.union1d(nan_channels, no_data_channels)
channels_interpolate = np.setdiff1d(
channels_interpolate, nans_no_data_channels)
nans_no_data_ChannelName = list()
ch_names = raw.info["ch_names"]
for i in range(0, len(nans_no_data_channels)):
nans_no_data_ChannelName.append(ch_names[nans_no_data_channels[i]])
raw.drop_channels(nans_no_data_ChannelName)
evaluation_channels = channels_interpolate
new_dimension = np.shape(EEGData)
# find channels that have abnormally high or low amplitude
robust_channel_deviation = np.zeros(original_dimensions[0])
deviation_channel_mask = [False] * (new_dimension[0])
channel_deviation = np.zeros(new_dimension[0])
for i in range(0, new_dimension[0]):
channel_deviation[i] = 0.7413 * iqr(EEGData[i, :])
channel_deviationSD = 0.7413 * iqr(channel_deviation)
channel_deviationMedian = np.nanmedian(channel_deviation)
robust_channel_deviation[evaluation_channels] = np.divide(
np.subtract(channel_deviation, channel_deviationMedian), channel_deviationSD
)
for i in range(0, new_dimension[0]):
deviation_channel_mask[i] = abs(robust_channel_deviation[i]) > 5 or np.isnan(
robust_channel_deviation[i]
)
deviation_channels = evaluation_channels[deviation_channel_mask]
# finding channels with high frequency noise
EEGData = np.transpose(EEGData)
dimension = np.shape(EEGData)
if sample_rate > 100:
new_EEG = np.zeros((dimension[0], dimension[1]))
bandpass_filter = filter_design(
N_order=100,
amp=np.array([1, 1, 0, 0]),
freq=np.array([0, 0.36, 0.4, 1]),
sample_rate=sample_rate)
for i in range(0, dimension[1]):
new_EEG[:, i] = signal.filtfilt(bandpass_filter, 1, EEGData[:, i])
noisiness = np.divide(robust.mad(np.subtract(EEGData, new_EEG)),
robust.mad(new_EEG))
noisiness_median = np.nanmedian(noisiness)
noiseSD = (np.median(np.absolute(np.subtract(noisiness, np.median(noisiness))))
* 1.4826)
zscore_HFNoise = np.divide(np.subtract(noisiness, noisiness_median), noiseSD)
HFnoise_channel_mask = [False] * new_dimension[0]
for i in range(0, new_dimension[0]):
HFnoise_channel_mask[i] = zscore_HFNoise[i] > 5 or np.isnan(
zscore_HFNoise[i])
else:
new_EEG = EEGData
noisiness_median = 0
noisinessSD = 1
zscore_HFNoise = np.zeros(dimension[1], 1)
HFNoise_channels = []
HFNoise_channels = evaluation_channels[HFnoise_channel_mask]
# finding channels by correlation
CORRELATION_SECONDS = 1 # default value
CORRELATION_FRAMES = CORRELATION_SECONDS * sample_rate
correlation_window = np.arange(CORRELATION_FRAMES)
correlation_offsets = np.arange(1, dimension[0] - CORRELATION_FRAMES,
CORRELATION_FRAMES)
w_correlation = len(correlation_offsets)
maximum_correlations = np.ones((original_dimensions[0], w_correlation))
drop_out = np.zeros((dimension[1], w_correlation))
channel_correlation = np.ones((w_correlation, dimension[1]))
noiselevels = np.zeros((w_correlation, dimension[1]))
channel_deviations = np.zeros((w_correlation, dimension[1]))
drop = np.zeros((w_correlation, dimension[1]))
len_correlation_window = len(correlation_window)
EEG_new_win = np.reshape(
np.transpose(new_EEG[0: len_correlation_window * w_correlation, :]),
(dimension[1], len_correlation_window, w_correlation),
order="F")
data_win = np.reshape(
np.transpose(EEGData[0: len_correlation_window * w_correlation, :]),
(dimension[1], len_correlation_window, w_correlation),
order="F")
for k in range(0, w_correlation):
eeg_portion = np.transpose(np.squeeze(EEG_new_win[:, :, k]))
data_portion = np.transpose(np.squeeze(data_win[:, :, k]))
window_correlation = np.corrcoef(np.transpose(eeg_portion))
abs_corr = np.abs(
np.subtract(window_correlation, np.diag(np.diag(window_correlation))))
channel_correlation[k, :] = np.quantile(
abs_corr, 0.98, axis=0) # problem is here is solved
noiselevels[k, :] = np.divide(
robust.mad(np.subtract(data_portion, eeg_portion)), robust.mad(eeg_portion))
channel_deviations[k, :] = 0.7413 * iqr(data_portion, axis=0)
for i in range(0, w_correlation):
for j in range(0, dimension[1]):
drop[i, j] = np.int(
np.isnan(channel_correlation[i, j]) or np.isnan(noiselevels[i, j]))
if drop[i, j] == 1:
channel_deviations[i, j] = 0
noiselevels[i, j] = 0
maximum_correlations[evaluation_channels, :] = np.transpose(channel_correlation)
drop_out[:] = np.transpose(drop)
noiselevels_out = np.transpose(noiselevels)
channel_deviations_out = np.transpose(channel_deviations)
thresholded_correlations = maximum_correlations < 0.4
thresholded_correlations = thresholded_correlations.astype(int)
fraction_BadCorrelationWindows = np.mean(thresholded_correlations, axis=1)
fraction_BadDropOutWindows = np.mean(drop_out, axis=1)
badCorrelation_channels = np.where(fraction_BadCorrelationWindows > 0.01)
badCorrelation_channels_out = badCorrelation_channels[:]
dropout_channels = np.where(fraction_BadDropOutWindows > 0.01)
dropout_channels_out = dropout_channels[:]
# medianMaxCorrelation = np.median(maximumCorrelations, 2);
badSNR_channels = np.union1d(badCorrelation_channels_out, HFNoise_channels)
noisy_channels = np.union1d(np.union1d(np.union1d(deviation_channels,
np.union1d(badCorrelation_channels_out, dropout_channels_out)),
badSNR_channels), np.union1d(nan_channels, no_data_channels))
# performing ransac
bads = list()
for i in range(0, len(noisy_channels)):
bads.append(ch_names[noisy_channels[i]])
SAMPLES = 50
FRACTION_GOOD = 0.25
CORR_THRESH = 0.75
FRACTION_BAD = (0.4,)
CORR_WIN_SEC = 4
chn_pos = raw._get_channel_positions()
raw.info["bads"] = bads
good_chn_labs = list()
good_idx = mne.pick_channels(ch_names, include=[], exclude=raw.info["bads"])
for i in range(0, len(good_idx)):
good_chn_labs.append(ch_names[good_idx[i]])
n_chans_good = good_idx.shape[0]
chn_pos_good = chn_pos[good_idx, :]
n_pred_chns = int(np.ceil(FRACTION_GOOD * n_chans_good))
EEGData_filtered = np.transpose(new_EEG)
if n_pred_chns <= 3:
raise IOError("Too few channels available to reliably perform ransac.")
# Make the ransac predictions
ransac_eeg = run_ransac(chn_pos=chn_pos, chn_pos_good=chn_pos_good,
good_chn_labs=good_chn_labs, n_pred_chns=n_pred_chns,
data=EEGData_filtered, n_samples=SAMPLES, raw=raw)
signal_len = original_dimensions[1]
n_chans = len(chn_pos)
correlation_frames = CORR_WIN_SEC * raw.info["sfreq"]
correlation_window = np.arange(correlation_frames)
n = correlation_window.shape[0]
correlation_offsets = np.arange(
0, (signal_len - correlation_frames), correlation_frames)
w_correlation = correlation_offsets.shape[0]
data_window = EEGData_filtered[:n_chans, : n * w_correlation]
data_window = data_window.reshape(n_chans, n, w_correlation)
pred_window = ransac_eeg[:n_chans, : n * w_correlation]
pred_window = pred_window.reshape(n_chans, n, w_correlation)
channel_correlations = np.ones((w_correlation, n_chans))
for k in range(w_correlation):
data_portion = data_window[:, :, k]
pred_portion = pred_window[:, :, k]
corr = np.corrcoef(data_portion, pred_portion)
corr = np.diag(corr[0:n_chans, n_chans:])
channel_correlations[k, :] = corr
thresholded_correlations = channel_correlations < CORR_THRESH
frac_bad_corr_windows = np.mean(thresholded_correlations, axis=0)
# find the corresponding channel names and return
bad_idxs_bool = frac_bad_corr_windows > FRACTION_BAD
bad_idxs = np.argwhere(bad_idxs_bool)
bad_by_ransac = list()
noisy_channels = np.union1d(noisy_channels, bad_idxs[0: len(bad_idxs)][0])
ransac_channel_correlations = channel_correlations
noisy_channels_list = list()
for i in range(0, len(noisy_channels)):
noisy_channels_list.append(ch_names_original[noisy_channels[i]])
print(noisy_channels_list)
return noisy_channels_list
DecilesS3.append(np.percentile(S3, i))
DecilesS4.append(np.percentile(S4, i))
DecilesS5.append(np.percentile(S5, i))
#Rango intercuartil
IQR1 = S1_perc_75 - S1_perc_25
IQR2 = S2_perc_75 - S2_perc_25
IQR3 = S3_perc_75 - S3_perc_25
IQR4 = S4_perc_75 - S4_perc_25
IQR5 = S5_perc_75 - S5_perc_25
from statsmodels import robust
#Desviacion absoluta media
MAD1 = robust.mad(S1)
MAD2 = robust.mad(S2)
MAD3 = robust.mad(S3)
MAD4 = robust.mad(S4)
MAD5 = robust.mad(S5)
#Trimedia
def Trimd(percentil25, mediana, percentil75):
Trimedia = ((percentil25) + (2 * mediana) + (percentil75)) / 4
return Trimedia
TriM1 = Trimd(S1_perc_25, S1_medi, S1_perc_75)
TriM2 = Trimd(S2_perc_25, S2_medi, S2_perc_75)
needD = 1
while(norm(y_dwtD[dwtD_sort_id[0:needD]]) / norm(y_dwtD) < (compressed_percentage/100)):
needD = needD + 1
print needD, compressed_percentage/100
#zero the coeff that is not really doing contribution to compressed_percentage% of y (thresholding)
y_dwtD[dwtD_sort_id[needD+1:]] = 0
#y_dwtD = np.reshape(y_dwtD, (len(y_dwtD), 1))
#y_cmp = np.concatenate((y_dwtA, y_dwtD),axis=1)
#print np.shape(y_cmp)
#get compressed signal by inverse dwt the finalized coeffs
y_cmp = idwt(y_dwtA, y_dwtD, 'db4')
'''
sigma = mad(coeff[-1])
threshold = sigma * np.sqrt(2 * np.log(len(y_data)))
#coeff[1:] = (pywt.threshold(i, value=threshold, mode="soft") for i in coeff[1:])
coeff[1:] = (pywt.threshold(i, value=threshold, mode="hard")
for i in coeff[1:])
y_cmp = pywt.waverec(coeff, "db20", mode="per")
#print np.shape(y_cmp)
'''
output_file("legend.html", title="legend.py example")
p1 = figure(title="Original", tools=TOOLS, plot_width=800, plot_height=400)
p2 = figure(title="After dwt", tools=TOOLS, plot_width=800, plot_height=400)
#p1.circle(x, y, legend="Control points", color="red", alpha=0.5)
p1.line(x, y_data, legend="Control Points", color="blue", alpha=0.8)
#p2.line(x, fft_y, legend="Control points", color="red", alpha=0.5)
# Median, Percentile, quantile, MAD
print("Median:")
print(np.median(haber_1["nodes"]))
print(np.median(haber_2["nodes"]))
print("\nQuantiles:")
print(np.percentile(haber_1["nodes"], np.arange(0, 100, 25)))
print(np.percentile(haber_2["nodes"], np.arange(0, 100, 25)))
print("\n20th Percentile range")
print(np.percentile(haber_1["nodes"], np.arange(0, 100, 20)))
print(np.percentile(haber_2["nodes"], np.arange(0, 100, 20)))
from statsmodels import robust
print("\nMedian Absolute Deviation:")
print(robust.mad(haber_1["nodes"]))
print(robust.mad(haber_2["nodes"]))
# Box plot and Whiskers
# Setting handles for the legend.
import matplotlib.patches as mpatches
blue_patch = mpatches.Patch(color="steelblue", label="1")
orange_patch = mpatches.Patch(color="orange", label="2")
# Box plot and whiskers for nodes
sns.boxplot(x="status", y="nodes", data=haber)
plt.title("Box plot for Nodes")
plt.legend(title="status", handles=[blue_patch, orange_patch])
plt.show()
# Box plot and whiskers for age
sns.boxplot(x="status", y="age", data=haber)
def check_station_residual(self, instaxml, period, runid = 0, discard = False, usemad = True, madfactor = 3., crifactor = 0.5, crilimit = 10.,\
plot = True, projection = 'merc', cmap = 'surf', vmin = None, vmax = None, clabel = 'average absolute'):
stainv = obspy.read_inventory(instaxml)
lats = []
lons = []
staids = []
for network in stainv:
for station in network:
stlo = float(station.longitude)
if stlo < 0.:
stlo += 360.
if station.latitude <= self.maxlat and station.latitude >= self.minlat\
and stlo <= self.maxlon and stlo >= self.minlon:
lats.append(station.latitude)
lons.append(stlo)
staids.append(network.code + '.' + station.code)
smoothgroup = self['smooth_run_' + str(runid)]
try:
residdset = smoothgroup['%g_sec' % (period) + '/residual']
# id fi0 lam0 f1 lam1 vel_obs weight res_tomo res_mod delta
residual = residdset[()]
except:
raise AttributeError('Residual data: ' + str(period) +
' sec does not exist!')
if discard:
res_tomo = residual[:, 7]
# quality control to discard data with large misfit
if usemad:
from statsmodels import robust
mad = robust.mad(res_tomo)
cri_res = madfactor * mad
else:
cri_res = min(crifactor * per, crilimit)
residual = residual[np.abs(res_tomo) < cri_res, :]
lats = np.asarray(lats, dtype=np.float64)
lons = np.asarray(lons, dtype=np.float64)
Ncounts, absres, res = _tomo_funcs._station_residual(
np.float64(lats), np.float64(lons), np.float64(residual))
# plot
#-----------
# plot data
#-----------
m = self._get_basemap(projection=projection)
x, y = m(lons, lats)
try:
import pycpt
if os.path.isfile(cmap):
cmap = pycpt.load.gmtColormap(cmap)
# cmap = cmap.reversed()
elif os.path.isfile(cpt_path + '/' + cmap + '.cpt'):
cmap = pycpt.load.gmtColormap(cpt_path + '/' + cmap + '.cpt')
except:
pass
values = res / Ncounts
im = m.scatter(x,
y,
marker='^',
s=50,
c=values,
cmap=cmap,
vmin=vmin,
vmax=vmax)
cb = m.colorbar(
im, "bottom", size="5%", pad='2%'
) #, ticks=[20., 25., 30., 35., 40., 45., 50., 55., 60., 65., 70.])
cb.set_label(clabel, fontsize=20, rotation=0)
plt.suptitle(str(period) + ' sec', fontsize=20)
cb.ax.tick_params(labelsize=40)
cb.set_alpha(1)
cb.draw_all()
# # cb.solids.set_rasterized(True)
cb.solids.set_edgecolor("face")
plt.show()
return Ncounts, absres, res, staids
def baseline_als(x,
y,
lam=None,
p=None,
niter=10,
return_baseline=False,
offset_correction=False):
"""Baseline Correction with Asymmetric Least Squares Smoothing.
Parameters
----------
x : array-like
the sample time/number/position
y : array-like
the data series corresponding to ``x``
lam : float
the lambda parameter of the ALS method. This control how much the
baseline can adapt to local changes. A higher value corresponds to a
stiffer baseline
p : float
the asymmetry parameter of the ALS method. This controls the overall
slope tolerated for the baseline. A higher value correspond to a
higher possible slope
Other Parameters
----------------
niter : int
The number of iterations to perform
return_baseline : bool
return the baseline?
offset_correction : bool
also correct for an offset to align with the running mean of the scan
Returns
-------
y_subtracted : array-like, same size as ``y``
The initial time series, subtracted from the trend
baseline : array-like, same size as ``y``
Fitted baseline. Only returned if return_baseline is ``True``
Examples
--------
>>> x = np.arange(0, 10, 0.01)
>>> y = np.zeros_like(x) + 10
>>> ysub = baseline_als(x, y)
>>> np.all(ysub < 0.001)
True
"""
if lam is None:
lam = 1e11
if p is None:
p = 0.001
z = _als(y, lam, p, niter=niter)
ysub = y - z
offset = 0
if offset_correction:
std = mad(ysub)
good = np.abs(ysub) < 10 * std
if len(x[good]) < 10:
good = np.ones(len(x), dtype=bool)
warnings.warn('Too few bins to perform baseline offset correction'
' precisely. Beware of results')
offset = offset_fit(x[good], ysub[good], 0)
if return_baseline:
return ysub - offset, z + offset
else:
return ysub - offset
np.reshape(yr_accomp[i:i + seglen], (1, seglen))),
axis=0)
estimates = np.concatenate(
(np.reshape(ye_vocals[i:i + seglen], (1, seglen)),
np.reshape(ye_accomp[i:i + seglen], (1, seglen))),
axis=0)
[SDR, _, SIR,
SAR] = museval.evaluate(references,
estimates) #sdr, isr, sir, sar
vocal_SDR.append(SDR[0])
vocal_SIR.append(SIR[0])
vocal_SAR.append(SAR[0])
print("Current vocal SDR median/mad/mean/std",
np.median(np.asarray(vocal_SDR)),
robust.mad(np.asarray(vocal_SDR)),
np.mean(np.asarray(vocal_SDR)), np.std(np.asarray(vocal_SDR)))
sw_SDR.append(np.median(np.asarray(vocal_SDR)))
print("Current macro vocal SDR median/mad/mean/std",
np.median(np.asarray(sw_SDR)), robust.mad(np.asarray(sw_SDR)),
np.mean(np.asarray(sw_SDR)), np.std(np.asarray(sw_SDR)))
print("Current vocal SIR median/mad/mean/std",
np.median(np.asarray(vocal_SIR)),
robust.mad(np.asarray(vocal_SIR)),
np.mean(np.asarray(vocal_SIR)), np.std(np.asarray(vocal_SIR)))
sw_SIR.append(np.median(np.asarray(vocal_SIR)))
print("Current macro vocal SIR median/mad/mean/std",
np.median(np.asarray(sw_SIR)), robust.mad(np.asarray(sw_SIR)),
np.mean(np.asarray(sw_SIR)), np.std(np.asarray(sw_SIR)))
print("Current vocal SAR median/mad/mean/std",
np.median(np.asarray(vocal_SAR)),
plt.xlabel('{:s} ({:s})'.format(a_true, a_string))
plt.ylabel('{:s} ({:s})'.format(a_fit, a_string))
plt.title('(b) acceleration') # + subtitle + statistic_title[1])
plt.legend(framealpha=0.5, loc='upper left', fontsize=legend_fontsize_fraction*axis_fontsize)
plt.grid()
plt.tight_layout()
if save:
filename = 'acceleration_{:s}_{:s}.pdf'.format(name, root)
plt.savefig(os.path.join(image_directory, filename), bbox_inches='tight', pad_inches=pad_inches)
#
# Median velocity and acceleration plots
#
v1 = np.median(z1v, axis=1)
v1e = mad(z1v, axis=1, c=1.0)
v2 = np.median(z2v, axis=1)
v2e = mad(z2v, axis=1, c=1.0)
a2 = np.median(z2a, axis=1)
a2e = mad(z2a, axis=1, c=1.0)
v_string = v0.unit.to_string('latex_inline')
a_string = a0.unit.to_string('latex_inline')
plt.figure(3)
plt.errorbar(accs, v1, yerr=v1e, label='polynomial n=1, fit velocity')
plt.errorbar(accs, v2, yerr=v2e, label='polynomial n=2, fit velocity')
plt.xlim(np.min(accs), np.max(accs))
plt.axhline(v0.to(u.km/u.s).value, label='true velocity ({:n} {:s})'.format(v0.value, v_string), color='r')
plt.xlabel('true acceleration ({:s})'.format(a_string))
def analysisIrradianceandPowerMismatch2(testfolder,
writefiletitle,
numpanels,
sensorsy,
portraitorlandscape='landscape'):
'''
Reads and calculates power output and mismatch for each file in the
testfolder where all the bifacial_radiance irradiance results .csv are saved.
First load each file, cleans it and resamples it to the numsensors set in this function,
and then calculates irradiance mismatch and PVMismatch power output for averaged, minimum,
or detailed irradiances on each cell for the cases of A) only 12 or 8 downsmaples values are
considered (at the center of each cell), and B) 12 or 8 values are obtained from averaging
all the irradiances falling in the area of the cell (No edges or inter-cell spacing are considered
at this moment). Then it saves all the A and B irradiances, as well as the cleaned/resampled
front and rear irradiances.
Ideally sensorsy in the read data is >> 12 to give results for the irradiance mismatch in the cell.
Also ideally n
Parameters
----------
testfolder: folder containing output .csv files for bifacial_radiance
writefiletitle: .csv title where the output results will be saved.
numpanels: 1 or 2 only at hte moment, necessary for the cleaning routine.
portraitorlandscape: 'portrait' or 'landscape', for PVMismatch input
which defines the electrical interconnects inside the module.
sensorsy : number of sensors. Ideally this number is >> 12 and
is also similar to the number of sensors (points) in the .csv result files.
We want more than 12 sensors to be able to calculate mismatch of
irradiance in the cell.
'''
#INPUT VARIABLES NECESSARY:
#\\nrel.gov\shared\5J00\Staff\CDeline\Bifacial mismatch data\Tracker mismatch data\3_26_19 Cairo_mismatch_1up tube
#testfolder = r'C:\Users\sayala\Documents\RadianceScenes\Demo3\results'
#testfolder = r'\\nrel.gov\shared\5J00\Staff\CDeline\Bifacial mismatch data\Tracker mismatch data\3_26_19 Cairo_mismatch_1up tube\results_noTorqueTube'
#writefiletitle = r'C:\Users\sayala\Documents\RadianceScenes\results_Cairo_mismatch_1up_noTorqueTube.csv'
#numpanels= 1
#portraitorlandscape = 'portrait' # portrait has 12 cells, landscape has 8
#sensorsy = 120 # deepclean will clean and resample to this number of sensors.
#ideally close nubmer to the original number of sample points.
# Also, if it's just 12 or 8 (for landscape or portrait), all the averagd values and cell mismatch
# become a mooth point
# User information.
filelist = sorted(os.listdir(testfolder))
print('{} files in the directory'.format(filelist.__len__()))
# PVMISMATCH Initialization of System
pvsys = pvsystem.PVsystem(
numberStrs=1,
numberMods=1) # makes the system # 1 module, in portrait mode.
pmp_ideal = pvsys.Pmp # Panel ideal. Monofacial.
stdpl = np.array([[0, 23, 24, 47, 48, 71, 72, 95],
[1, 22, 25, 46, 49, 70, 73, 94],
[2, 21, 26, 45, 50, 69, 74, 93],
[3, 20, 27, 44, 51, 68, 75, 92],
[4, 19, 28, 43, 52, 67, 76, 91],
[5, 18, 29, 42, 53, 66, 77, 90],
[6, 17, 30, 41, 54, 65, 78, 89],
[7, 16, 31, 40, 55, 64, 79, 88],
[8, 15, 32, 39, 56, 63, 80, 87],
[9, 14, 33, 38, 57, 62, 81, 86],
[10, 13, 34, 37, 58, 61, 82, 85],
[11, 12, 35, 36, 59, 60, 83, 84]])
if portraitorlandscape == 'portrait':
samplecells = 12
repeatedcells = 8
if portraitorlandscape == 'landscape':
samplecells = 8
repeatedcells = 12
stdpl = stdpl.transpose()
# SAMPLE POINT AND HEADER DEFINITION
cellCenterPVM = [
] # This grabs just the value at the 'center' of the cell.
cellFrontandBackMismatch_Header = []
cellBackMismatch_Header = []
cellCenterFrontValue_Header = []
cellCenterBackValue_Header = []
cellFrontAveragedValue_Header = []
cellBackAveragedValue_Header = []
frontres_header = []
backres_header = []
for i in range(0, samplecells):
cellCenterPVM.append((i * sensorsy / (samplecells * 1.0) +
(i + 1) * sensorsy / (samplecells * 1.0) / 2))
cellFrontandBackMismatch_Header.append('FrontplusBack_Mismatch_cell_' +
str(i))
cellBackMismatch_Header.append('Back_Mismatch_cell_' + str(i))
cellCenterFrontValue_Header.append('CellCenterFrontValue_cell' +
str(i))
cellCenterBackValue_Header.append('CellCenterBackValue_cell' + str(i))
cellBackAveragedValue_Header.append('CellBack_AveragedValue_cell_' +
str(i))
cellFrontAveragedValue_Header.append('CellFront_AveragedValue_cell_' +
str(i))
for i in range(0, sensorsy):
frontres_header.append('Clean_Front_cell' + str(i))
backres_header.append('Clean_Back_cell' + str(i))
# HEADERS:
outputheaders = [
'Timestamp', 'PowerAveraged_CellCenter', 'PowerMin_CellCenter',
'PowerDetailed_CellCenter', 'PowerAveraged_AverageValues',
'PowerMin_AverageValues', 'PowerDetailed_AverageValues',
'PowerFRONT_Averaged', 'PowerFRONT_Detailed', 'MAD_cellCenterVal',
'MAD_cellAverage', 'MAD_frontplusback_clean', 'Cell Front Min',
'Cell Back Min', 'Irradiance Mismatch Front+Back Max',
'Irradiance Mismatch Back Max'
]
outputheaders += cellFrontandBackMismatch_Header
outputheaders += cellBackMismatch_Header
outputheaders += cellCenterFrontValue_Header
outputheaders += cellCenterBackValue_Header
outputheaders += cellBackAveragedValue_Header
outputheaders += cellFrontAveragedValue_Header
outputheaders += frontres_header
outputheaders += backres_header
with open(writefiletitle, 'w') as csvfile:
sw = csv.writer(csvfile,
delimiter=',',
quotechar='|',
quoting=csv.QUOTE_MINIMAL,
lineterminator='\n')
sw.writerow(outputheaders)
# LOOP OVER FILES HERE
for z in range(0, filelist.__len__()):
#for z in range(0, 1):
data = load.read1Result(os.path.join(testfolder, filelist[z]))
#sensorsy = len(data) # 210 for this case. deepclean resamples to value given.
[frontres, backres] = load.deepcleanResult(data,
sensorsy,
numpanels,
automatic=True)
cellAverageValues_FrontPlusBack = []
cellFrontAverage = [] # This averages the number of sensors.
cellBackAverage = []
cellFrontandBackMismatch = []
cellBackMismatch = []
cellFrontMin = []
cellBackMin = []
cellFrontPlusBackMin = []
frontandbackres = frontres + backres
cellRows = len(
frontres
) # this is the same as sensorsy.... maybe replace? #TODO
if cellRows != samplecells:
for i in range(0, samplecells):
istart = int(i * cellRows / samplecells)
iend = int((i + 1) * cellRows / samplecells)
cellFrontAverage.append(np.average(frontres[istart:iend]))
cellBackAverage.append(np.average(backres[istart:iend]))
cellAverageValues_FrontPlusBack.append(
np.average(frontres[istart:iend]) +
np.average(backres[istart:iend]))
cellFrontandBackMismatch.append(
(max(frontandbackres[istart:iend]) -
min(frontandbackres[istart:iend])) * 100 /
(max(frontandbackres[istart:iend]) +
min(frontandbackres[istart:iend])))
cellBackMismatch.append(
(max(backres[istart:iend]) - min(backres[istart:iend]))
* 100 / (max(backres[istart:iend]) +
min(backres[istart:iend])))
cellFrontMin.append(min(frontres[istart:iend]))
cellBackMin.append(min(backres[istart:iend]))
cellFrontPlusBackMin.append(
min(frontandbackres[istart:iend]))
cellCenterValFront = np.interp(cellCenterPVM,
list(range(0, cellRows)),
frontres)
cellCenterValBack = np.interp(cellCenterPVM,
list(range(0, cellRows)),
backres)
else:
cellCenterValFront = frontres
cellCenterValBack = backres
sunmatDetailed_CellCenter = []
sunmatAveraged_CellCenter = []
sunmatMin_CellCenter = []
sunmatDetailed_AverageValues = []
sunmatAveraged_AverageValues = []
sunmatMin_AverageValues = []
sunmatFrontOnly_Averaged = []
sunmatFrontOnly_Detailed = []
# Center of Cell only
cellCenterValues_FrontPlusBack = cellCenterValFront + cellCenterValBack
AveFront_CellCenter = cellCenterValFront.mean()
AveBack_CellCenter = cellCenterValBack.mean()
# Average of Cell
#cellAverageValues_FrontPlusBack = sum(cellFrontAverage,cellBackAverage)
AveFront_AverageValues = np.mean(cellFrontAverage)
AveBack_AverageValues = np.mean(cellBackAverage)
# Repeat to create a matrix to pass matrix.
for j in range(0, len(cellCenterValues_FrontPlusBack)):
sunmatDetailed_CellCenter.append(
[cellCenterValues_FrontPlusBack[j] / 1000] * repeatedcells)
sunmatDetailed_AverageValues.append(
[cellAverageValues_FrontPlusBack[j] / 1000] *
repeatedcells)
for j in range(0, len(cellCenterValFront)):
sunmatAveraged_CellCenter.append(
[(AveFront_CellCenter + AveBack_CellCenter) / 1000] *
repeatedcells)
sunmatAveraged_AverageValues.append(
[(AveFront_AverageValues + AveBack_AverageValues) / 1000] *
repeatedcells)
for j in range(0, len(cellCenterValFront)):
sunmatMin_CellCenter.append(
[min(cellCenterValues_FrontPlusBack) / 1000] *
repeatedcells)
sunmatMin_AverageValues.append(
[min(cellFrontPlusBackMin) / 1000] * repeatedcells)
# FRONT MISMATCH
for j in range(0, len(cellCenterValFront)):
sunmatFrontOnly_Averaged.append([cellFrontAverage[j] / 1000] *
repeatedcells)
sunmatFrontOnly_Detailed.append(
[cellCenterValFront[j] / 1000] * repeatedcells)
# ACtually do calculations
pvsys.setSuns({0: {0: [sunmatAveraged_CellCenter, stdpl]}})
PowerAveraged_CellCenter = pvsys.Pmp
pvsys.setSuns({0: {0: [sunmatDetailed_CellCenter, stdpl]}})
PowerDetailed_CellCenter = pvsys.Pmp
pvsys.setSuns({0: {0: [sunmatMin_CellCenter, stdpl]}})
PowerMinimum_CellCenter = pvsys.Pmp
# ACtually do calculations
pvsys.setSuns({0: {0: [sunmatAveraged_AverageValues, stdpl]}})
PowerAveraged_AverageValues = pvsys.Pmp
pvsys.setSuns({0: {0: [sunmatDetailed_AverageValues, stdpl]}})
PowerDetailed_AverageValues = pvsys.Pmp
pvsys.setSuns({0: {0: [sunmatMin_AverageValues, stdpl]}})
PowerMinimum_AverageValues = pvsys.Pmp
# ACtually do calculations
pvsys.setSuns({0: {0: [sunmatFrontOnly_Averaged, stdpl]}})
PowerFRONT_Averaged = pvsys.Pmp
pvsys.setSuns({0: {0: [sunmatFrontOnly_Detailed, stdpl]}})
PowerFRONT_Detailed = pvsys.Pmp
#flattened = [val for sublist in dictvalues for val in sublist]
# Append Values
# Append Values
#cellCenterValFrontFlat = [val for sublist in cellCenterValFront for val in sublist]
outputvalues = [
filelist[z], PowerAveraged_CellCenter, PowerMinimum_CellCenter,
PowerDetailed_CellCenter, PowerAveraged_AverageValues,
PowerMinimum_AverageValues, PowerDetailed_AverageValues,
PowerFRONT_Averaged, PowerFRONT_Detailed,
robust.mad(cellCenterValues_FrontPlusBack),
robust.mad(cellAverageValues_FrontPlusBack),
robust.mad(frontandbackres),
min(cellFrontMin),
min(cellBackMin),
max(cellFrontandBackMismatch),
max(cellBackMismatch)
]
outputvalues += cellFrontandBackMismatch # 12
outputvalues += cellBackMismatch # 12
outputvalues += list(cellCenterValFront) # 12
outputvalues += list(cellCenterValBack) # 12
outputvalues += list(cellFrontAverage) # 12
outputvalues += list(cellBackAverage) # 12
outputvalues += list(frontres) # sensorsy # 210
outputvalues += list(backres) # sensorsy 210
sw.writerow(outputvalues)
plt.xlim(xlim)
plt.xlabel('true velocity ({:s})'.format(v_string))
plt.ylabel('fit acceleration ({:s})'.format(a_string))
plt.title('(b) acceleration' + subtitle + statistic_title[1])
plt.legend(framealpha=0.5, loc='upper left')
plt.grid()
plt.tight_layout()
if save:
filename = 'acceleration_mean_{:s}.png'.format(root)
plt.savefig(os.path.join(image_directory, filename), bbox_inches='tight', pad_inches=pad_inches)
#
# Median velocity and acceleration plots
#
v1 = np.median(z1v, axis=1)
v1e = mad(z1v, axis=1, c=1.0)
v2 = np.median(z2v, axis=1)
v2e = mad(z2v, axis=1, c=1.0)
a2 = np.median(z2a, axis=1)
a2e = mad(z2a, axis=1, c=1.0)
v_string = v0.unit.to_string('latex_inline')
a_string = a0.unit.to_string('latex_inline')
"""
plt.figure(3)
plt.errorbar(accs, v1, yerr=v1e, label='polynomial n=1, fit velocity')
plt.errorbar(accs, v2, yerr=v2e, label='polynomial n=2, fit velocity')
plt.xlim(xlim)
plt.axhline(v0.to(u.km/u.s).value, label='true velocity ({:n} {:s})'.format(v0.value, v_string), color='r')
# Normalise size data by item.
joined = pd.concat([known, unknown], sort = False)
item_sizes = df(joined.groupby('item_id')['item_size'].apply(list))
x_size = list(item_sizes.index)
y_size = list(item_sizes.item_size.values)
zip_dict_size = dict(zip(x_size, y_size))
def mad_normalise(initial_size, sizes_median, mad):
return (float(initial_size) - sizes_median) / mad
replacement_dict_master = {}
for item in joined['item_id'].unique():
item_sizes = zip_dict_size[item]
item_sizes = [float(size) for size in item_sizes]
sizes_median = np.median(item_sizes)
mad = robust.mad(item_sizes)
if mad == 0:
replacement_dict = {(item, initial_size): 0 for initial_size in item_sizes}
else:
replacement_dict = {(item, initial_size): round(mad_normalise(initial_size, sizes_median, mad), 2) for initial_size in item_sizes}
replacement_dict_master.update(replacement_dict)
known['item_size'] = known.set_index(['item_id', 'item_size']).index.map(replacement_dict_master.get)
unknown['item_size'] = unknown.set_index(['item_id', 'item_size']).index.map(replacement_dict_master.get)
# Change date columns to datetime features.
known['order_date'] = pd.to_datetime(known['order_date'])
known['delivery_date'] = pd.to_datetime(known['delivery_date'])
known['user_dob'] = pd.to_datetime(known['user_dob'])
known['user_reg_date'] = pd.to_datetime(known['user_reg_date'])
ioblk.parm.fitregion = 4.0
ioblk.parm.debugLevel = 3
tmpflx = flx[idxGd]
tmpt = time[idxGd]
tmpttwo = tmpt * tmpt
tmptfour = tmpttwo * tmpttwo
# Remove polynomial fit
pvals = np.polyfit(tmpt, tmpflx, 4, full=False)
tmpy = pvals[4] + pvals[3] * tmpt + pvals[2] * tmpttwo + pvals[
1] * tmpttwo * tmpt + pvals[0] * tmptfour
#plt.plot(tmpt, tmpflx, '.')
#plt.plot(tmpt, tmpy, '-')
#plt.show()
ioblk.normlc = tmpflx / tmpy - 1.0
ioblk.normes = robust.mad(ioblk.normlc)
origstd = np.copy(ioblk.normes)
ioblk.normts = time[idxGd]
ioblk.modellc = np.copy(ioblk.normlc)
ioblk.yData = np.copy(ioblk.normlc)
ioblk.errData = np.full_like(ioblk.normlc, ioblk.normes)
ioblk.timezpt = np.median(ioblk.normts)
ioblk.normts = ioblk.normts - ioblk.timezpt
ioblk.physval_names = ['Per', 'To', 'Amp', 'Zpt']
ioblk.calcval_names = ['Per_c', 'To_c', 'Amp_c', 'Zpt_c']
# Give seed starting values for the minimization
ioblk.origests = np.array([allper[i], 0.0, ioblk.normes * 3.0, 0.0])
# Give integer array for variables you want fixed during fit
# 0 - not fixed (solved for) ; 1 - fixed (not solved for)
def baseline_als(x, y, lam=None, p=None, niter=10, return_baseline=False,
offset_correction=False):
"""Baseline Correction with Asymmetric Least Squares Smoothing.
Parameters
----------
x : array-like
the sample time/number/position
y : array-like
the data series corresponding to ``x``
lam : float
the lambda parameter of the ALS method. This control how much the
baseline can adapt to local changes. A higher value corresponds to a
stiffer baseline
p : float
the asymmetry parameter of the ALS method. This controls the overall
slope tolerated for the baseline. A higher value correspond to a
higher possible slope
Other Parameters
----------------
niter : int
The number of iterations to perform
return_baseline : bool
return the baseline?
offset_correction : bool
also correct for an offset to align with the running mean of the scan
Returns
-------
y_subtracted : array-like, same size as ``y``
The initial time series, subtracted from the trend
baseline : array-like, same size as ``y``
Fitted baseline. Only returned if return_baseline is ``True``
Examples
--------
>>> x = np.arange(0, 10, 0.01)
>>> y = np.zeros_like(x) + 10
>>> ysub = baseline_als(x, y)
>>> np.all(ysub < 0.001)
True
"""
if lam is None:
lam = 1e11
if p is None:
p = 0.001
z = _als(y, lam, p, niter=niter)
ysub = y - z
offset = 0
if offset_correction:
std = mad(ysub)
good = np.abs(ysub) < 10 * std
if len(x[good]) < 10:
good = np.ones(len(x), dtype=bool)
warnings.warn('Too few bins to perform baseline offset correction'
' precisely. Beware of results')
offset = offset_fit(x[good], ysub[good], 0)
if return_baseline:
return ysub - offset, z + offset
else:
return ysub - offset
def train_lipop(seed: int = 19700101,
limit: int = -1,
use_cuda: bool = True,
use_tqdm=True,
force_save=False,
special_config: dict = None,
position_encoder_path: str = 'net/pe.pt',
tag='std',
dataset='Lipop'):
cfg = DEFAULT_CONFIG.copy()
if special_config:
cfg.update(special_config)
for k, v in cfg.items():
print(k, ':', v)
set_seed(seed, use_cuda)
np.set_printoptions(precision=4, suppress=True, linewidth=140)
if dataset == 'FreeSolv':
smiles, info_list, properties = load_freesolv(limit,
force_save=force_save)
elif dataset == 'ESOL':
smiles, info_list, properties = load_esol(limit, force_save=force_save)
else:
smiles, info_list, properties = load_lipop(limit,
force_save=force_save)
molecules = [
HeteroGraph(info['nf'], info['ef'], info['us'], info['vs'], info['em'])
for info in info_list
]
n_dim = molecules[0].n_dim
e_dim = molecules[0].e_dim
node_num = len(molecules)
train_mask, validate_mask, test_mask = sample(list(range(node_num)),
cfg['TRAIN_PER'],
cfg['VALIDATE_PER'],
cfg['TEST_PER'])
n_seg = int(len(train_mask) / (cfg['BATCH'] + 1))
n_seg = min(len(train_mask), n_seg)
train_mask_list = [train_mask[i::n_seg] for i in range(n_seg)]
n_seg = int(len(validate_mask) / (cfg['BATCH'] + 1))
n_seg = min(len(validate_mask), n_seg)
validate_mask_list = [validate_mask[i::n_seg] for i in range(n_seg)]
n_seg = int(len(test_mask) / (cfg['BATCH'] + 1))
n_seg = min(len(test_mask), n_seg)
test_mask_list = [test_mask[i::n_seg] for i in range(n_seg)]
print(train_mask[0], validate_mask[0], test_mask[0])
print(len(train_mask_list), len(validate_mask_list), len(test_mask_list))
t_properties = properties[train_mask, :]
prop_mean = np.mean(t_properties, axis=0)
print('mean:', prop_mean)
prop_std = np.std(t_properties.tolist(), axis=0, ddof=1)
print('std:', prop_std)
prop_mad = robust.mad(t_properties.tolist(), axis=0)
print('mad:', prop_mad)
norm_properties = (properties - prop_mean) / prop_std
if position_encoder_path and os.path.exists(position_encoder_path):
position_encoder = torch.load(position_encoder_path)
position_encoder.eval()
else:
print('NO POSITION ENCODER IS BEING USED!!!')
position_encoder = None
model = AMPNN(n_dim=n_dim,
e_dim=e_dim,
config=cfg,
position_encoder=position_encoder,
use_cuda=use_cuda)
regression = MLP(cfg['F_DIM'],
1,
h_dims=cfg['MLP_DIMS'],
dropout=cfg['DROPOUT'])
if use_cuda:
model.cuda()
regression.cuda()
for name, param in chain(model.named_parameters(),
regression.named_parameters()):
if param.requires_grad:
print(name, ":", param.shape)
optimizer = optim.Adam(filter(
lambda x: x.requires_grad,
chain(model.parameters(), regression.parameters())),
lr=cfg['LR'],
weight_decay=cfg['DECAY'])
scheduler = optim.lr_scheduler.StepLR(optimizer=optimizer,
step_size=1,
gamma=cfg['GAMMA'])
matrix_cache = MatrixCache(cfg['MAX_DICT'])
loss_fuc = MSELoss()
logs = []
def forward(mask: list,
name=None) -> (torch.Tensor, torch.Tensor, torch.Tensor):
nfs = torch.cat([molecules[i].node_features for i in mask])
efs = torch.cat([molecules[i].edge_features for i in mask])
if use_cuda:
nfs = nfs.cuda()
efs = efs.cuda()
us, vs, mm_tuple = matrix_cache.fetch(molecules, mask, nfs, name,
use_cuda)
embeddings, _ = model(nfs, efs, us, vs, mm_tuple, name,
[smiles[i] for i in mask])
std_loss = 0
logits = regression(embeddings)
target = norm_properties[mask, :]
target = torch.tensor(target.astype(np.float32), dtype=torch.float32)
if use_cuda:
target = target.cuda()
return logits, target, std_loss
def train(mask_list: list, name=None):
model.train()
regression.train()
u_losses = []
losses = []
t = enumerate(mask_list)
if use_tqdm:
t = tqdm(t, total=len(mask_list))
for i, m in t:
if name:
name_ = name + str(i)
else:
name_ = None
optimizer.zero_grad()
logits, target, std_loss = forward(m, name=name_)
u_loss = loss_fuc(logits, target)
u_losses.append(u_loss.cpu().item())
loss = u_loss + std_loss
# loss.backward()
# optimizer.step()
losses.append(loss)
if len(losses) >= cfg['PACK'] or i == len(mask_list) - 1:
(sum(losses) / len(losses)).backward()
optimizer.step()
losses.clear()
u_loss = np.average(u_losses)
print('\t\tSemi-supervised loss: {:.4f}'.format(u_loss))
logs[-1].update({'on_train_loss': u_loss})
def evaluate(mask_list: list, name=None, visualize=None):
model.eval()
regression.eval()
losses = []
masks = []
logits_list = []
target_list = []
t = enumerate(mask_list)
if use_tqdm:
t = tqdm(t, total=len(mask_list))
for i, m in t:
if name:
name_ = name + str(i)
else:
name_ = None
logits, target, _ = forward(m, name=name_)
loss = loss_fuc(logits, target)
losses.append(loss.cpu().item())
if visualize:
masks.extend(m)
logits_list.append(logits.cpu().detach().numpy())
target_list.append(target.cpu().detach().numpy())
mse_loss = np.average(losses) * (prop_std[0]**2)
rmse_loss = np.average([loss**0.5 for loss in losses]) * prop_std[0]
print('\t\tMSE Loss: {:.3f}'.format(mse_loss))
print('\t\tRMSE Loss: {:.3f}'.format(rmse_loss))
logs[-1].update({'{}_loss'.format(name): mse_loss})
logs[-1].update({'{}_metric'.format(name): rmse_loss})
if visualize:
all_logits = np.vstack(logits_list)
all_target = np.vstack(target_list)
best_ids, best_ds, worst_ids, worst_ds = \
plt_multiple_scatter(GRAPH_PATH + visualize, masks, all_logits, all_target)
print('\t\tBest performance on:')
for i, d in zip(best_ids, best_ds):
print('\t\t\t{}: {}'.format(smiles[i], d))
print('\t\tWorst performance on:')
for i, d in zip(worst_ids, worst_ds):
print('\t\t\t{}: {}'.format(smiles[i], d))
for epoch in range(cfg['ITERATION']):
logs.append({'epoch': epoch + 1})
scheduler.step(epoch=epoch)
print('In iteration {}:'.format(epoch + 1))
print('\tTraining: ')
train(train_mask_list, name='train')
print('\tEvaluating training: ')
evaluate(
train_mask_list,
name='train',
# visualize='train_{}'.format(epoch + 1) if (epoch + 1) % cfg['EVAL'] == 0 else None
)
print('\tEvaluating validation: ')
evaluate(
validate_mask_list,
name='evaluate',
# visualize='val_{}'.format(epoch + 1) if (epoch + 1) % cfg['EVAL'] == 0 else None
)
print('\tEvaluating test: ')
evaluate(
test_mask_list,
name='test',
# visualize='test' if epoch + 1 == cfg['ITERATION'] else None
)
gc.collect()
d = {'metric': 'RMSE', 'logs': logs}
with open('{}{}.json'.format(LOG_PATH, tag), 'w+',
encoding='utf-8') as fp:
json.dump(d, fp)