mne.time_frequency.tfr.cwt

mne.time_frequency.tfr.cwt(X, Ws, use_fft=True, mode='same', decim=1)[source]

Compute time freq decomposition with continuous wavelet transform.

Parameters
Xarray, shape (n_signals, n_times)

The signals.

Wslist of array

Wavelets time series.

use_fftbool

Use FFT for convolutions. Defaults to True.

mode‘same’ | ‘valid’ | ‘full’

Convention for convolution. ‘full’ is currently not implemented with use_fft=False. Defaults to ‘same’.

decimint | slice

To reduce memory usage, decimation factor after time-frequency decomposition. If int, returns tfr[…, ::decim]. If slice, returns tfr[…, decim].

Note

Decimation may create aliasing artifacts.

Defaults to 1.

Returns
tfrarray, shape (n_signals, n_freqs, n_times)

The time-frequency decompositions.

See also

mne.time_frequency.tfr_morlet

Compute time-frequency decomposition with Morlet wavelets