Evaluation and QA#

Overcorrection#

Compute source-topography distortion metrics for a spatial operator.

`peak_attenuation_db`	Compute peak attenuation around a target frequency.
`suppression_ratio`	Compute the dB ratio of mean band power before and after cleaning.
`noise_surround_ratio`	Compute target-band power divided by surrounding power.
`below_noise_distortion_db`	Compute mean absolute log-power distortion outside excluded bands.
`spectral_distortion`	Compute RMS log-power distortion away from line-noise harmonics.
`overclean_proportion`	Compute the fraction of channels whose surrounding floor is over-suppressed.
`underclean_proportion`	Compute the fraction of channels with a residual target peak.
`geometric_mean_psd_ratio`	Compute the geometric mean of psd_after / psd_before over a frequency range.
`variance_removed`	Compute percentage of total variance removed.
`compute_all_qa_metrics`	Compute the package QA summary for two MNE Raw objects.
`rms_change`	Compute the RMS of data_before - data_after.
`max_abs_change`	Compute the largest absolute sample-wise change.
`channel_variance_ratio`	Compute after/before variance for each channel.