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

[원경호]

Hello.


I recently saw this discussion regarding the gdf file issue I have resolved.


There were some changes in the gdf header in newer version of OpenViBE.

To resolve this issue, I made small changes in "eeglab2023.0\plugins\Biosig3.8.1\biosig\t200_FileAccess\sopen.m"


Line: 556 to 562 (HDR.DigMin, HDR.DigMax)

Result: same amplitude as MNE-Python


I compared the Biosig toolbox to MNE-Python (mne.io.readgdf()), as MNE-Python could load the gdf accordingly. I am not super knowledgeable, but it seems the two functions handled DigMin and DigMax from header differently.


I have read the doc for GDF, and I modified a few lines. It seems to be working (same as MNE-Python).

Hopefully, it could help you if you are encountering the same issue.


Best regards,

Kyungho Won (kyung-ho.won at inria.fr)

Postdoc

Team Hybrid - https://urldefense.com/v3/__https://team.inria.fr/hybrid/__;!!Mih3wA!FRgLayq4XhQvBPpy0RRFwFJ7W0aoxmzj_axzfkqF5Xb8sSnReThzDq1h3UQCq3u-F1ARif9c3OowXyhdl6cvk24Jm0L-TXN8yI14$ 

<https://urldefense.com/v3/__https://team.inria.fr/hybrid/__;!!Mih3wA!FRgLayq4XhQvBPpy0RRFwFJ7W0aoxmzj_axzfkqF5Xb8sSnReThzDq1h3UQCq3u-F1ARif9c3OowXyhdl6cvk24Jm0L-TXN8yI14$ >
<https://urldefense.com/v3/__https://team.inria.fr/hybrid/__;!!Mih3wA!FRgLayq4XhQvBPpy0RRFwFJ7W0aoxmzj_axzfkqF5Xb8sSnReThzDq1h3UQCq3u-F1ARif9c3OowXyhdl6cvk24Jm0L-TXN8yI14$ >

________________________________
보낸 사람: eeglablist-request at sccn.ucsd.edu <eeglablist-request at sccn.ucsd.edu> 대신 eeglablist <eeglablist-bounces at sccn.ucsd.edu>
보낸 날짜: 2023년 10월 18일 수요일 오전 4:00
받는 사람: eeglablist at sccn.ucsd.edu <eeglablist at sccn.ucsd.edu>
제목: eeglablist Digest, Vol 228, Issue 10

Send eeglablist mailing list submissions to
        eeglablist at sccn.ucsd.edu

To subscribe or unsubscribe via the World Wide Web, visit
        https://sccn.ucsd.edu/mailman/listinfo/eeglablist
or, via email, send a message with subject or body 'help' to
        eeglablist-request at sccn.ucsd.edu

You can reach the person managing the list at
        eeglablist-owner at sccn.ucsd.edu

When replying, please edit your Subject line so it is more specific
than "Re: Contents of eeglablist digest..."