Time-Frequency methods
-
class
periodicity.timefrequency.
HHT
(frequencies, emd=None, method='DQ', norm_type='spline', norm_iter=10, smooth_width=None) Bases:
object
Hilbert-Huang Transform
-
_normalize
(mode, eps=1e-06, pad_width=2) Huang et al. (2009)
-
_spectrogram
(freq_grid, freq, amp)
-
-
class
periodicity.timefrequency.
WPS
(periods) Bases:
object
Wavelet Power Spectrum using Morlet wavelets.
- Parameters
periods (array-like) – Periods to consider, in the same time units as the input signal.
-
coi
(coi_samples=100) - coi_samples: int, optional
Number of samples of the Cone of Influence (COI). Used for plotting (default is 100).
-
gwps
(tmin=None, tmax=None)
-
property
mask_coi
-
masked_gwps
(tmin=None, tmax=None)
-
masked_sav
(pmin=None, pmax=None)
-
plot_coi
(coi_samples=100, **kwargs)
-
sav
(pmin=None, pmax=None)