[Eeglablist] Question about bva-io Plugin

[Andreas Widmann]

Hi Kamia,

the epoch information is imported correctly. The relevant epoch information is actually stored in the event structure. You just need to call 
>> EEG = eeg_checkset( EEG, 'eventconsistency')
to (re-)create the epoch structure from there.

The EEGLAB documentation states that "EEGLAB functions never use the epoch structure" (https://sccn.ucsd.edu/wiki/A05:_Data_Structures#EEG.epoch). I would consider this as a bug in the function you used for creating a STUDY. It should create the epoch structure on-the-fly in case missing. You may consider submitting a bug report:
https://sccn.ucsd.edu/bugzilla/

Best,
Andreas

> Am 09.03.2018 um 19:51 schrieb Kamia Kavi <kamiakavi at gmail.com>:
> 
> Dear Mr. Widman,
> 
> Thank you very much for your response.
> 
> Attached, please find example data, which lack EEG.epoch when imported to EEGLAB.
> 
> Best wishes,
> 
> Kamia
> 
> On Fri, Mar 9, 2018 at 4:39 PM, Andreas Widmann <widmann at uni-leipzig.de> wrote:
> Hi,
> 
> could you please make the BrainVision-file available, e.g. Dropbox?
> 
> Please cc responses and future request to the eeglab mailing list.
> 
> Best,
> Andreas
> 
> > Am 08.03.2018 um 18:27 schrieb Kamia Kavi <kamiakavi at gmail.com>:
> >
> > Dear Mr. Widmann,
> >
> > I have a question regarding you bva-io plugin.
> >
> > I have some semi-processed data (segmented data) in BrainVision Analyzer which I exported with Generic Data Export. Then I used bva-io plugin (from Brain Vis. Rec. .vhdr file) to import it to EEGLAB. Everything looks good (such as the number of epochs, events, sampling rate, etc.) except for EEG.epoch which is empty. When I create a STUDY, I see a warning (“some datasets are continuous and trial information cannot be created”) which seems to be caused by the fact that EEG.epoch is empty. Can I import segmented data from BVA to EEGLAB using your plugin?
> >
> > Best wishes,
> >
> > Mahmoud
> >
> 
> 
> 
> <CDRM13JK_Seg_133.dat><CDRM13JK_Seg_133.vhdr><CDRM13JK_Seg_133.vmrk>