[Eeglablist] Issue for importing GDF file - empty EEG data structure

[Arnaud Delorme]

Dear Emeline,

Would you mind to create an issue and upload your data file at

https://urldefense.com/v3/__https://github.com/sccn/eeglab/issues__;!!Mih3wA!HHXbtTpc1iV64N79Og5S2_6vSo83RkBtVWHtT-d29ylCgPr31szFNI4a2bBRKXhcSEQ8VC8g7k3KK1Y9JiRy9PU8$ 

We will see with Alois (developer of BIOSIG - EEGLAB uses BIOSIG to import GDF files) what the problem is. My intuition is that OpenVibe does not save GDF compliant files. Alois designed GDF 

https://urldefense.com/v3/__https://arxiv.org/abs/cs/0608052__;!!Mih3wA!HHXbtTpc1iV64N79Og5S2_6vSo83RkBtVWHtT-d29ylCgPr31szFNI4a2bBRKXhcSEQ8VC8g7k3KK1Y9JsuTfpaX$ 

So you can trust that BIOSIG (also developed by Alois) imports GDF properly.

Cheers,

Arno

> On Oct 17, 2023, at 2:52 AM, Emeline Pierrieau via eeglablist <eeglablist at sccn.ucsd.edu> wrote:
> 
> 
> 
> Hi, 
> 
> 
> 
> I am trying to import a GDF file from a 128 electrode BioSemi system (data are recorded in GDF format because they are saved in OpenVibe). I use the BIOSIG toolbox, and only add information about the number of the reference channel in the pop_biosig window. I don’t receive any error message or warning in Matlab command window but the EEG data structure of the file is completely empty. 
> 
> Note that the GDF file isn’t empty, it shows normal oscillatory activity when readed in OpenVibe. Note also that I already imported GDF files from OpenVibe in EEGLAB in a previous study using an ANTNeuro system and it worked fine. What can I do to properly import the GDF file this time? 
> 
> 
> 
> Best regards, 
> 
> 
> 
> Emeline 
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