[Mne_analysis] Problem reading competition data

[Eric Larson]

        External Email - Use Caution        

`mne show_fiff 226_RAW.fif` had these lines after the measurement info
section:

        103 = FIFFB_PROCESSED_DATA
            206 = FIFF_COMMENT/FIFF_DESCRIPTION (15b str) = Single
category ... str len=15
            104 = FIFFB_EVOKED
            ...

​
You can read it with `mne.read_evokeds('226_RAW.fif')`. Here is the
`evoked.plot()`:
[image: Figure_1.png]
So these data are stored in evoked format, not raw.

Eric



On Thu, Jun 21, 2018 at 5:03 AM Vladimir Litvak <litvak.vladimir at gmail.com>
wrote:

>         External Email - Use Caution
>
> Hi all,
>
> I get an error trying to read fif files from Biomag competition into
> MNE (https://box.bic.mni.mcgill.ca/s/Biomag2018). The error message is
> below. The same file converts fine in Matlab. Any idea?
>
> Thanks,
>
> Vladimir
>
> ------------------
> raw = mne.io.read_raw_fif('226_RAW.fif', preload=True, allow_maxshield
> = True, verbose='error')
> Traceback (most recent call last):
>
>   File "<ipython-input-3-c948947cad43>", line 1, in <module>
>     raw = mne.io.read_raw_fif('226_RAW.fif', preload=True,
> allow_maxshield = True, verbose='error')
>
>   File
> "C:\wtcnapps\Anaconda3\envs\mne\lib\site-packages\mne\io\fiff\raw.py",
> line 459, in read_raw_fif
>     preload=preload, verbose=verbose)
>
>   File "<string>", line 2, in __init__
>
>   File "C:\wtcnapps\Anaconda3\envs\mne\lib\site-packages\mne\utils.py",
> line 728, in verbose
>     return function(*args, **kwargs)
>
>   File
> "C:\wtcnapps\Anaconda3\envs\mne\lib\site-packages\mne\io\fiff\raw.py",
> line 87, in __init__
>     preload, do_check_fname)
>
>   File "<string>", line 2, in _read_raw_file
>
>   File "C:\wtcnapps\Anaconda3\envs\mne\lib\site-packages\mne\utils.py",
> line 729, in verbose
>     return function(*args, **kwargs)
>
>   File
> "C:\wtcnapps\Anaconda3\envs\mne\lib\site-packages\mne\io\fiff\raw.py",
> line 165, in _read_raw_file
>     raise ValueError('No raw data in %s' % fname)
>
> ValueError: No raw data in D:\Tempdata\Competition\226\226_RAW.fif
>
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