Hi. I ran the code at the bottom and got an error code. I’m totally new to eeg data analysis, so I really have no idea where the error came from. I could only guess there is something wrong with data itself, like wrong data format or wrong data info. Can anyone help out to fix it or just guess w…

This looks like an EEG recording. The maxfilter algorithm only works for MEG data. The algorithm first selects all the MEG channels, fails to find any as all channels are marked as EEG or EOG, and thus gives this unhelpful error message. To automatically detect bad channels in EEG data, I recommend…

[image] wmvanvliet: The algorithm first selects all the MEG channels, fails to find any as all channels are marked as EEG or EOG, and thus gives this unhelpful error message. We should improve the error message :disguised_face:

Thank you for the solutions. I was looking for not time consuming solutions to detect noisy or flat channels, and maxwell function was not the solution in my case. I should try RANSAC as you said. Thank you so much.

got stuck in mne.preprocessing.find_bad_channels_maxwell()

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got stuck in mne.preprocessing.find_bad_channels_maxwell()

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