.set file import error

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1
  • MNE-Python version: 0.23.0- python 3.6
  • operating system: Ubuntu, Linux

Hello,

I’ve been trying to import a .set eeg file via
raw = mne.io.read_raw_eeglab('Data/file.set', preload=True), but I get this error ValueError: Could not find EEG array in the .set file.
The .fdt file is exactly named the same and is located in the same folder as the .set file.

Also, I wanted to explore the option of importing a .mff file, but on ubuntu the .mff file becomes a folder instead of a file, so can’t be read. Is there a way around it ?

Thank you for your help!

2

Which version of MNE are you using?

If you load the .set file with matlab it returns an EEG structure?

Regarding .mff files it should not be a problem on Linux

Alex

3

Regarding the error you get when reading set files: make sure that reading the file in matlab (or just sicpy.io.loadmat for example) gives you a structure containing EEG field. If you save .set + .fdt data then the contents of the EEG field would be just the name of the fdt file.

Also, I wanted to explore the option of importing a .mff file, but on ubuntu the .mff file becomes a folder instead of a file, so can’t be read. Is there a way around it ?

Just as @agramfort mentions - it should work without any problems. The .mff files are folders on Windows too but I had no trouble reading them in mne.