Rawarray plot doesn't show up any windows.

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1
  • MNE version: e.g. 1.8
  • operating system: mac M1

I’m just trying to plot the raw_arrays (24 ch, EEG data)

I run the following code at the terminal.

There are no errors, and show up this message.

Using qt as 2D backend.
Using pyopengl with version 3.1.6

It seems to be running well. but any plotting windows are shown.
(I checked that a simple plt.plot() shows properly.)

Is there possible issues that I missed?

Thanks a lot.

My source code is following

import pyxdf
import numpy as np
import matplotlib.pyplot as plt
import matplotlib

import mne
from mne import create_info, EvokedArray
from mne.io import RawArray
from mne.preprocessing import ICA

fname = "path/file_name.xdf"
streams, header = pyxdf.load_xdf(fname)

eeg_data = streams[0]["time_series"].T

ch_names_eeg = [ch['label'][0] for ch in streams[0]['info']['desc'][0]['channels'][0]['channel']]
ch_types_eeg = ['eeg'] * len(ch_names_eeg)

info_eeg = create_info(ch_names=ch_names_eeg, sfreq=sr_eeg, ch_types=ch_types_eeg)
raw_eeg = RawArray(eeg_data, info_eeg)

raw_eeg.plot()
plt.show()
2

Not an expert in these things, but mne’s standalone qt browser works well for me. You can try installing it (python -m pip install mne-qt-browser or conda’s equivalent, depending on which you use), then adding the following to your code:

from mne.viz import set_browser_backend

set_browser_backend("qt")