[FieldTrip] Read mne-python epochs file in fieldtrip

[Alexandre Gramfort]

hi,

how do you specify that your fif file is an epochs file and not a raw file?

epochs files should end with -epo.fif

calling fiff_setup_read_raw.m suggests that fieldtrip thinks it's a raw file.

HTH
Alex

On Wed, Jan 7, 2015 at 1:43 PM, Laetitia Grabot
<laetitia.grabot at gmail.com> wrote:
> Thanks Denis for the quick answer!
> My code looks the same than in the tutorial, that's why I don't understand
> the problem. I tried with the latest version of the day of Fieldtrip, but I
> still have the same error.
>
> 2015-01-07 12:57 GMT+01:00 Denis-Alexander Engemann
> <d.engemann at fz-juelich.de>:
>>
>> Hi Laetitia,
>>
>> here's a tutorial on integrating Fieldtrip with MNE-Python:
>>
>> http://fieldtrip.fcdonders.nl/development/integrate_with_mne
>>
>> You should make sure to use recent fieldtrip code, the support for reading
>> MNE-Python epochs has been added quite recently to the MNE-Matlab tools used
>> inside Fieldtrip.
>>
>> HTH,
>> Denis
>>
>>
>>
>>
>>
>> 2015-01-07 9:57 GMT+01:00 Laetitia Grabot <laetitia.grabot at gmail.com>:
>>>
>>> Dear all,
>>> I would like to read in fieldtrip a epoch file (.fif) created in
>>> mne-python. As adviced in the website section "integrate fieldtrip and
>>> MNE-Python", I used the following piece of code:
>>>
>>> cfg = [];
>>> cfg.dataset = filename;
>>> data1 = ft_preprocessing(cfg);
>>>
>>> And I get the following error:
>>>
>>> Error using fiff_setup_read_raw (line 89)
>>> No raw data in
>>>
>>> /neurospin/meg/meg_tmp/PhaseTime_Anne_2013/epochs/jm100042_equalizedEpochs_allCond_firstStimLocked_filtr45Hz_Afirst.fif
>>>
>>> Error in fiff_setup_read_raw (line 89)
>>>             error(me,'No raw data in %s',fname);
>>>
>>> Error in ft_read_header (line 1157)
>>>         raw = fiff_setup_read_raw(filename);
>>>
>>> Error in ft_preprocessing (line 338)
>>>   hdr = ft_read_header(cfg.headerfile, 'headerformat', cfg.headerformat);
>>>
>>> It seems that there is a problem at the level of the header of the file.
>>> Any help would be appreciated if someone already solved this issue. By the
>>> way, this piece of code works well to read an evoked file without error.
>>>
>>> Thanks a lot,
>>> Best,
>>> Laetitia G.
>>>
>>> _______________________________________________
>>> fieldtrip mailing list
>>> fieldtrip at donders.ru.nl
>>> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>>
>>
>>
>>
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