mne-tools / mne-tools/mne-python

`Epochs.drop` should warn if all epochs would be dropped

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Python
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Description

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the mne.Epochs.drop entry point and compare its behavior with drop_channels in mne/channels/channels.py around lines 600-601. Confirm how the existing implementation warns when all items would be removed, then check the related Epochs tests if available. Done means Epochs.drop warns when the requested operation would drop every epoch.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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