# One TFR plot averaged over picked channels

**URL:** <https://mne.discourse.group/t/one-tfr-plot-averaged-over-picked-channels/5778>\
**Category:** Support & Discussions\
**Tags:** eeg, visualization\
**Created:** [October 21, 2022, 3:36pm UTC](https://mne.discourse.group/t/one-tfr-plot-averaged-over-picked-channels/5778 "2022-10-21T15:36:08Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![FranziMNE](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/franzimne/32/2366_2.png) [@FranziMNE](https://mne.discourse.group/u/FranziMNE)\
**Post date:** [October 21, 2022, 3:36pm UTC](https://mne.discourse.group/t/one-tfr-plot-averaged-over-picked-channels/5778/1 "2022-10-21T15:36:08Z")

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Hello 🙂

I dont know if this is because of an update, but shortly ago when I run the following code, I would get one plot averaged over Oz, O1 and O2, and not three plots. How can I get my averaged plot back? 🫣

```python
grandAvg.plot(['Oz', 'O1', 'O2'],title='Occipital cluster',
              tmin=-1, tmax=3, show=True, vmin=-0.04, vmax=0.04, cmap='viridis')

```

Thank you 🙂  
Franzi

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**Author:** ![mscheltienne](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/mscheltienne/32/827_2.png) [@mscheltienne](https://mne.discourse.group/u/mscheltienne)\
**Post date:** [October 21, 2022, 3:43pm UTC](https://mne.discourse.group/t/one-tfr-plot-averaged-over-picked-channels/5778/2 "2022-10-21T15:43:02Z")

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The [`plot` method of an AverageTFR](https://mne.tools/1.0/generated/mne.time_frequency.AverageTFR.html#mne.time_frequency.AverageTFR.plot) object has a `combine` argument which controls how channels are combined. By default, you get one plot for each channel. You need to set `combine="mean"` to get an average.

Best,  
Mathieu

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<div class="post-metadata">

**Author:** ![FranziMNE](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/franzimne/32/2366_2.png) [@FranziMNE](https://mne.discourse.group/u/FranziMNE)\
**Post date:** [October 21, 2022, 3:48pm UTC](https://mne.discourse.group/t/one-tfr-plot-averaged-over-picked-channels/5778/3 "2022-10-21T15:48:03Z")

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Thank you for your help 😊

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**Author:** ![drammock](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/drammock/32/4_2.png) [@drammock](https://mne.discourse.group/u/drammock)\
**Post date:** [October 21, 2022, 6:52pm UTC](https://mne.discourse.group/t/one-tfr-plot-averaged-over-picked-channels/5778/4 "2022-10-21T18:52:16Z")

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how did you even know it was a TFR? 🧙

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<div class="post-metadata">

**Author:** ![mscheltienne](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/mscheltienne/32/827_2.png) [@mscheltienne](https://mne.discourse.group/u/mscheltienne)\
**Post date:** [October 22, 2022, 9:19am UTC](https://mne.discourse.group/t/one-tfr-plot-averaged-over-picked-channels/5778/5 "2022-10-22T09:19:53Z")

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Ahah, I’ve been digging a bit too much into TFR representations during the past 2 days 😅 I need to see something else before I dream of one.

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**Author:** ![FranziMNE](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/franzimne/32/2366_2.png) [@FranziMNE](https://mne.discourse.group/u/FranziMNE)\
**Post date:** [October 22, 2022, 9:26am UTC](https://mne.discourse.group/t/one-tfr-plot-averaged-over-picked-channels/5778/6 "2022-10-22T09:26:18Z")

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![AnnoyingBrain](https://global.discourse-cdn.com/free1/uploads/mne/original/2X/1/1046d72af92492cea6384d57c5986ddee29744fb.jpeg)

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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:** [October 22, 2022, 3:29pm UTC](https://mne.discourse.group/t/one-tfr-plot-averaged-over-picked-channels/5778/7 "2022-10-22T15:29:40Z")

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> [@drammock](#):
>
> how did you even know it was a TFR? 🧙

It’s literally in the title 😅