Compute time-varying estimates of cHPI SNR.
Raw data with cHPI information.
Minimum time step to use.
Time window to use to estimate the amplitudes, default is 0.2 (200 ms).
The external order for SSS-like interfence suppression. The SSS bases are used as projection vectors during fitting.
Changed in version 0.20: Added
ext_order=1 by default, which should improve
detection of true HPI signals.
Start time of the raw data to use in seconds (must be >= 0).
End time of the raw data to use in seconds (cannot exceed data duration).
The time-varying cHPI SNR estimates, with entries “times”, “freqs”,
“snr_mag”, “power_mag”, and “resid_mag” (and/or “snr_grad”,
“power_grad”, and “resid_grad”, depending on which channel types are
New in version 0.24.