[Mne_analysis] mne_process_raw problem

[Andres Felipe Salazar Gomez]

Hi Sarah,

One idea is to check in your off-line averaging description file the
*Reject parameters since maybe they are too high and thus all your epochs
are being rejected.

Before doing the offline averaging you should do it online
(mne_browse_raw), changing these values in Adjust/Averaging preferences to
be sure you will get some.

Hope this helps,

-- Andrés

> Hi,
>
> I am having a problem in one subject when trying to average raw files
(and computing a noise covariance matrix) with mne_process_raw. I sent an
mail about this a while ago but did not hear back and all my attempts to
solve this problem myself failed.
>
> The error message says:
> "Event file is in the old format. Taking into account offset of 135000
samples
> Read 714 events from SBT_MEG_005_run1_converted.eve
> Computing...
> Too few samples (required : 1885 got : 0)"
>
> My understanding of this error message is that mne does not find events
listed in the event file that match events in the raw file. However, the
events listed in the event file do match events on the trigger channel
(STI 014). Played around with the event file using non-modified event
files and event files in the old and new format did not lead to any
success, nor did excluding runs separately or excluding EEG from the raw
files (the EEG looked not nice because the subject was sweating a lot).
Running the old mne version did not change anything either.
> I have run the same command in other subjects without problems.
>
>
> Any help with this is greatly appreciated!
> thanks, Sarah
>
>
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>
>


-- 
Andres F. Salazar
Research Technologist
Neuroscience Statistics Research Laboratory
asalazar at nmr.mgh.harvard.edu
149 13th Street, Room 4005
Charlestown, MA  02129