Could not find any of the events you specified.

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1

Hello, I have continuous data in which there are no events in my EEG data, but after the process of filtering and cleaning I have some annotations called: ‘Bad_muscle’. now I can not add these annotations as events. and I think it interrupts my visualization and time-frequency analysis.
Thank you in advance.

  • MNE version: 1.2.2
  • operating system: Windows 10
print(raw.annotations)
print(set(raw.annotations.duration))
print(set(raw.annotations.description))
print(raw.annotations.onset[0])

The result of this cell is:

<Annotations | 39 segments: BAD_muscle (39)>
{0.09666633605957031, 0.026666641235351562, 0.08333206176757812, 0.10333442687988281, 0.043331146240234375, 0.0500030517578125, 0.09666824340820312, 0.1699981689453125, 0.12000274658203125, 0.11333465576171875, 0.08333587646484375, 0.18999481201171875, 0.15332794189453125, 0.086669921875, 0.15000152587890625, 0.10666656494140625, 0.0666656494140625, 0.0699920654296875, 0.2733306884765625, 0.160003662109375, 0.3166656494140625, 0.1300048828125, 0.0966644287109375, 0.1199951171875, 0.2066802978515625, 0.126678466796875, 0.22333526611328125, 0.06667327880859375, 0.21666717529296875, 0.14333343505859375, 0.15999603271484375, 0.14666748046875, 0.05999755859375, 0.35666656494140625, 0.2700042724609375, 0.1866607666015625, 0.07000732421875}
{'BAD_muscle'}
20.29

In the next cell I run:
mne.events_from_annotations(raw)
and the result is the error:
ValueError: Could not find any of the events you specified.

2

By default, the annotations starting with BAD are ignored. Have a look at the regexp argument of mne.events_from_annotations.

2 Likes
3

Thank you for replying!
As you said, I change my code to:
events, event_id = mne.events_from_annotations(raw, regexp = None)
and it worked. Is it ok to use?

4

Sounds good to me. None probably disables the filtering by name entirely. You could also just change the regex pattern to match 'BAD_muscle' if that’s the event you want to capture.

2 Likes