[Eeglablist] Channel locations gone after reading locations

Sebastian Sauppe sauppe.s at gmail.com
Wed Oct 6 07:44:37 PDT 2021


Thanks. Yes, this is in fact what I did (see my description of the steps that I tried) while still encountering the problem.

> Am 06.10.2021 um 16:42 schrieb Nilo Sarraf <nilo.sarraf at yahoo.com>:
> 
> Have you tried saving the sensor location manual yourself and then directing your software to the CED file? I did a YouTube video on this recently at a very high level though 👇
> In brainwaves analysis what do these file formats mean? CED, EDF, CSV <https://urldefense.proofpoint.com/v2/url?u=https-3A__youtu.be_a-2DXRn7-5FL3Hk&d=DwIFaQ&c=-35OiAkTchMrZOngvJPOeA&r=kB5f6DjXkuOQpM1bq5OFA9kKiQyNm1p6x6e36h3EglE&m=e5D9QQpHhSYgwDnqOnO4Mo1NJgaN0Gi2gONqgt9EKzw&s=o5zqmk5lsmtuNpNDTJswTCIId2Gu-wwmx95afs_wxXc&e= > 
> 
> 	
> In brainwaves analysis what do these file formats mean? CED, EDF, CSV
> By Dr. Nilo
> 
> 
>  <https://urldefense.proofpoint.com/v2/url?u=https-3A__youtu.be_a-2DXRn7-5FL3Hk&d=DwIFaQ&c=-35OiAkTchMrZOngvJPOeA&r=kB5f6DjXkuOQpM1bq5OFA9kKiQyNm1p6x6e36h3EglE&m=e5D9QQpHhSYgwDnqOnO4Mo1NJgaN0Gi2gONqgt9EKzw&s=o5zqmk5lsmtuNpNDTJswTCIId2Gu-wwmx95afs_wxXc&e= >
> 
> 
> 
> 
> 
> 
> Sent from Yahoo Mail for iPhone <https://urldefense.proofpoint.com/v2/url?u=https-3A__overview.mail.yahoo.com_-3F.src-3DiOS&d=DwIFaQ&c=-35OiAkTchMrZOngvJPOeA&r=kB5f6DjXkuOQpM1bq5OFA9kKiQyNm1p6x6e36h3EglE&m=e5D9QQpHhSYgwDnqOnO4Mo1NJgaN0Gi2gONqgt9EKzw&s=vA60iEJRoCjxlpb0cC2Uj0tYmpwSyIrH0qFrWKMf-6s&e= >
> 
> On Wednesday, October 6, 2021, 7:23 AM, Sebastian Sauppe via eeglablist <eeglablist at sccn.ucsd.edu <mailto:eeglablist at sccn.ucsd.edu>> wrote:
> 
> Dear EEGLAB community,
> 
> I work on Biosemi BDF files and encounter a problem when adding the channel locations.
> 
> I first import the file with 
> 
> EEG = pop_biosig("file.bdf", 'importannot','off','ref',1);
> 
> Then I want to add the channel locations via Edit > Channel locations > Read locations, using this .ced file: https://urldefense.proofpoint.com/v2/url?u=https-3A__bitbucket.org_palday_biosemi128_src_master_biosemi128.ced&d=DwIFaQ&c=-35OiAkTchMrZOngvJPOeA&r=kB5f6DjXkuOQpM1bq5OFA9kKiQyNm1p6x6e36h3EglE&m=7vxjQgYhvCzqHoNLLK0zsDHTSpOcz9PkGVrVLuuShtg&s=ynDwXyj8lZ5QhPjBBzEyBuLcpNlhakmdXKCpw4D9wbs&e=  <https://urldefense.proofpoint.com/v2/url?u=https-3A__bitbucket.org_palday_biosemi128_src_master_biosemi128.ced&d=DwIFaQ&c=-35OiAkTchMrZOngvJPOeA&r=kB5f6DjXkuOQpM1bq5OFA9kKiQyNm1p6x6e36h3EglE&m=7vxjQgYhvCzqHoNLLK0zsDHTSpOcz9PkGVrVLuuShtg&s=ynDwXyj8lZ5QhPjBBzEyBuLcpNlhakmdXKCpw4D9wbs&e=>
> 
> This adds the channel locations, I can see that when plotting the channel locations (both 2D and 3D).
> 
> However, when I close the window, the channel locations are gone. When I open the Channel locations window again, I am back to where I was before with no locations present. The same happens when I do it via the command:
> 
> EEG = pop_chanedit(EEG,...
>     'lookup','eeglab2020_0/plugins/dipfit4.3/standard_BESA/standard-10-5-cap385.elp','rplurchanloc',1,...
>     'load',{'biosemi128.ced','filetype','autodetect'});
> 
> Also when I first import the locations and then save them as a .loc file and then later use this .loc file for reading in the locations (again), they are gone after I click on „ok“.
> 
> Does anyone know how to solve this? Any lead would be highly appreciated.
> 
> Kind regards,
> Sebastian
> 
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