eelbrain.psd_welch
- eelbrain.psd_welch(ndvar, fmin=0, fmax=inf, n_fft=256, n_overlap=0, n_per_seg=None)
Power spectral density with Welch’s method
- Parameters
ndvar (NDVar (..., time, ...)) – Data with time dimension.
fmin (scalar) – Lower bound of the frequencies of interest.
fmax (scalar) – Upper bound of the frequencies of interest.
n_fft (int) – Length of the FFT in samples (default 256).
n_overlap (int) – Overlap between segments in samples (default 0).
n_per_seg (int | None) – Length of each Welch segment in samples. Smaller
n_per_seg
result in smoother PSD estimates (defaultn_fft
).
- Returns
psd – Power spectral density.
- Return type
NDVar (…, frequency)
Notes
Uses
mne.time_frequency.psd_array_welch()
implementation.