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Info object
- The list of bad channels is stored in the 'bads' field of the Info object that is attached to Raw, Epochs, and Evoked objects.
mne.tools/stable/auto_tutorials/preprocessing/15_handling_bad_channels.html
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How are Bad Channels handled?
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Aug 23, 2024 · The list of bad channels is stored in the 'bads' field of the Info object that is attached to Raw, Epochs, and Evoked objects. print(raw.info["bads"]) ['MEG 2443', 'EEG 053']
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MNE-Python provides tools for marking and interpolating bad # channels; the list of which channels are marked as "bad" is propagated # automatically through later stages of processing.
Dec 15, 2023 · MNE plots has a great graphic user interface in which you can select manually which channels are bad (by clicking on them). There is a great tutorial here: Handling bad channels — MNE 1.6.0 documentation. For a more “unsupervised” way I would suggest you to take a look at the prep algorithm ref. Here is the python package.
Dec 8, 2021 · When a channel is marked as bad it stays in the data, but the software will know it is a bad channel. How the bad channel is handled depends on the functions you then run. For example, if you plot the data using raw.plot() it will still show the bad channels, but they will be greyed out.
Feb 27, 2021 · Suppose I plot my raw data: raw.plot(block=True) then remove bad channels and annotate in the plot window. I know that when I close the plot window, raw.info['bads'] stores the list of channels I de-selected and raw_copy.annotations.onset raw_copy.annotations.duration stores the start times and durations of my annotations.
Aug 15, 2017 · In short, data repair using spherical spline interpolation [1] consists of the following steps: Project the good and bad electrodes onto a unit sphere. Compute a mapping matrix that maps N good channels to M bad channels. Use this mapping matrix to compute interpolated data in the bad channels.
Sep 20, 2024 · Problematic channels can be marked as “bad”, for example if the connected sensor produced mostly noise - or no signal at all. Similarly, you can declare channels as “good”, should you discover they were incorrectly marked as bad. Bad channel selection can also be performed non-interactively.
