# How to deal with multi-person EEG data?

**URL:** <https://mne.discourse.group/t/how-to-deal-with-multi-person-eeg-data/3975>\
**Category:** Support & Discussions\
**Created:** [November 17, 2021, 12:34pm UTC](https://mne.discourse.group/t/how-to-deal-with-multi-person-eeg-data/3975 "2021-11-17T12:34:01Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Kirito](https://avatars.discourse-cdn.com/v4/letter/k/4491bb/32.png) [@Kirito](https://mne.discourse.group/u/Kirito)\
**Post date:** [November 17, 2021, 12:34pm UTC](https://mne.discourse.group/t/how-to-deal-with-multi-person-eeg-data/3975/1 "2021-11-17T12:34:01Z")

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- MNE-Python version: 0.23.4
- operating system: win10  
At present, I have EEG data of many people, and the experimental equipment is neuroscan. How should I average all the EEG data of these subjects in the time domain and view the situation of a certain channel?  
Looking forward to your reply

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**Author:** ![richard](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/richard/32/15_2.png) [@richard](https://mne.discourse.group/u/richard)\
**Post date:** [November 17, 2021, 1:04pm UTC](https://mne.discourse.group/t/how-to-deal-with-multi-person-eeg-data/3975/2 "2021-11-17T13:04:52Z")

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Hello @Kirito, you can use [`mne.grand_average()`](https://mne.tools/stable/generated/mne.grand_average.html)

Best,  
Richard