def __init__(self,
x,
sf,
f_pha=[2, 4],
dcomplex='hilbert',
cycle=3,
width=7,
edges=None,
n_jobs=-1):
"""Init."""
_PacObj.__init__(self,
f_pha=f_pha,
f_amp=[60, 80],
dcomplex=dcomplex,
cycle=(cycle, 6),
width=width)
# check
x = np.atleast_2d(x)
assert x.ndim <= 2, ("`x` input should be an array of shape "
"(n_epochs, n_times)")
self._n_trials = x.shape[0]
# extract phase and amplitude
kw = dict(keepfilt=False, edges=edges, n_jobs=n_jobs)
pha = self.filter(sf, x, 'phase', **kw)
# compute plv
self._plv = np.abs(np.exp(1j * pha).mean(1)).squeeze()
self._sf = sf
def __init__(self,
x,
sf,
f_pha=[2, 4],
dcomplex='hilbert',
cycle=3,
width=7,
edges=None,
n_jobs=-1,
verbose=None):
"""Init."""
set_log_level(verbose)
_PacObj.__init__(self,
f_pha=f_pha,
f_amp=[60, 80],
dcomplex=dcomplex,
cycle=(cycle, 6),
width=width)
_PacVisual.__init__(self)
# check
x = np.atleast_2d(x)
assert x.ndim <= 2, ("`x` input should be an array of shape "
"(n_epochs, n_times)")
self._n_trials = x.shape[0]
logger.info("Inter-Trials Coherence (ITC)")
logger.info(f" extracting {len(self.xvec)} phases")
# extract phase and amplitude
kw = dict(keepfilt=False, edges=edges, n_jobs=n_jobs)
pha = self.filter(sf, x, 'phase', **kw)
# compute itc
self._itc = np.abs(np.exp(1j * pha).mean(1)).squeeze()
self._sf = sf
def __init__(self, x, sf, f_pha=[2, 4], f_amp=[60, 80], n_bins=18,
dcomplex='hilbert', cycle=(3, 6), width=7, edges=None,
n_jobs=-1):
"""Init."""
_PacObj.__init__(self, f_pha=f_pha, f_amp=f_amp, dcomplex=dcomplex,
cycle=cycle, width=width)
# check
x = np.atleast_2d(x)
assert x.ndim <= 2, ("`x` input should be an array of shape "
"(n_epochs, n_times)")
assert isinstance(sf, (int, float)), ("`sf` input should be a integer "
"or a float")
assert all([isinstance(k, (int, float)) for k in f_pha]), (
"`f_pha` input should be a list of two integers / floats")
assert all([isinstance(k, (int, float)) for k in f_amp]), (
"`f_amp` input should be a list of two integers / floats")
assert isinstance(n_bins, int), "`n_bins` should be an integer"
logger.info(f"Binning {f_amp}Hz amplitude according to {f_pha}Hz "
"phase")
# extract phase and amplitude
kw = dict(keepfilt=False, edges=edges, n_jobs=n_jobs)
pha = self.filter(sf, x, 'phase', **kw)
amp = self.filter(sf, x, 'amplitude', **kw)
# binarize amplitude according to phase
self._amplitude = _kl_hr(pha, amp, n_bins, mean_bins=False).squeeze()
self.n_bins = n_bins
def __init__(self,
x,
sf,
cue,
times=None,
f_pha=[5, 7],
f_amp='hres',
cycle=(3, 6),
n_jobs=-1,
verbose=None):
"""Init."""
set_log_level(verbose)
# initialize to retrieve filtering methods
_PacObj.__init__(self,
f_pha=f_pha,
f_amp=f_amp,
dcomplex='hilbert',
cycle=cycle)
_PacVisual.__init__(self)
logger.info("PeakLockedTF object defined")
# inputs checking
x = np.atleast_2d(x)
assert isinstance(x, np.ndarray) and (x.ndim == 2)
assert isinstance(sf, (int, float))
assert isinstance(cue, (int, float))
assert isinstance(f_pha, (list, tuple)) and (len(f_pha) == 2)
n_epochs, n_times = x.shape
# manage cur conversion
if times is None:
cue = int(cue)
times = np.arange(n_times)
logger.info(f" align on sample cue={cue}")
else:
assert isinstance(times, np.ndarray) and (len(times) == n_times)
cue_time = cue
cue = np.abs(times - cue).argmin() - 1
logger.info(f" align on time-point={cue_time} (sample={cue})")
self.cue, self._times = cue, times
# extract phase and amplitudes
logger.info(f" extract phase and amplitudes "
f"(n_amps={len(self.yvec)})")
kw = dict(keepfilt=False, n_jobs=n_jobs)
pha = self.filter(sf, x, 'phase', n_jobs=n_jobs, keepfilt=True)
amp = self.filter(sf, x, 'amplitude', n_jobs=n_jobs)
self._pha, self._amp = pha, amp**2
# peak detection
logger.info(f" running peak detection around sample={cue}")
self.shifts = self._peak_detection(self._pha.squeeze(), cue)
# realign phases and amplitudes
logger.info(f" realign the {n_epochs} phases and amplitudes")
self.amp_a = self._shift_signals(self._amp, self.shifts, fill_with=0.)
self.pha_a = self._shift_signals(self._pha, self.shifts, fill_with=0.)