Confusion over setting up EEGSystem structure

[pauldhami]

Greetings,

firstly, thank you for the code!

I am having trouble getting everything running from the command line, with constant errors with regards to my handling of EEGSystem. This is what I have done:

1. Using an already cleaned .set file similar to the data I want to clean, I export the channel data as a .ced.
2. I place this .ced file in 'automagic-master/matlab_scripts' (this is where it should go from my understanding from the wiki)
3. These are my parameters for parms.EEGSystem:

'EEGSystem',           struct('name', 'Others',...
                                               'sys10_20', 1, ...
                                               'locFile', 'neuroscan64_chanloc', ...
                                               'refChan', struct([]), ...
                                               'fileLocType', '.ced',...
                                               'eogChans', [], ...
                                               'powerLineFreq', []), ...

I then get the following error:

Error using readlocs>load_file_or_array (line 624)
readlocs(): cannot find the named file or variable, check syntax

Error in readlocs (line 405)
           array = load_file_or_array( filename, g.skiplines);

Error in pop_chanedit (line 834)
                tmplocs = readlocs( chaninfo.filename, 'defaultelp', 'BESA' );

Error in systemDependentParse (line 141)
            [~, EEG] = evalc(['pop_chanedit(EEG, ''lookup'', EEGSystem.sys10_20_file,' ...

Error in preprocess (line 141)
    systemDependentParse(data, EEGSystem, ChannelReductionParams, ...

Error in Block/preprocess (line 517)
            [EEG, fig1, fig2, fig3] = preprocess(data, self.params);

Error in Project/preprocessAll (line 501)
                [EEG, automagic] = block.preprocess();

Error in automagic_test (line 44)
project.preprocessAll();

Any suggestions as how to solve this would be greatly appreciated.

Best, Paul

[ksgfan]

Hi Paul

Have you tried that:

'EEGSystem',       struct('name', 'Others',...
                                               'sys10_20', 1, ...
                                               'locFile', 'neuroscan64_chanloc.ced', ...
                                               'refChan', struct([]), ...
                                               'fileLocType', 'ced',...
                                               'eogChans', [], ...
                                               'powerLineFreq', []), ...

?

Best Dawid

[pauldhami]

Thank you for your suggestion. That seems to have solved some issues, but I am now receiving the following error as well after using your suggestion:

Error using readlocs>load_file_or_array (line 624)
readlocs(): cannot find the named file or variable, check syntax

Error in readlocs (line 405)
           array = load_file_or_array( filename, g.skiplines);

Error in pop_chanedit (line 834)
                tmplocs = readlocs( chaninfo.filename, 'defaultelp', 'BESA' );

Error in systemDependentParse (line 141)
            [~, EEG] = evalc(['pop_chanedit(EEG, ''lookup'', EEGSystem.sys10_20_file,' ...

Error in preprocess (line 141)
    systemDependentParse(data, EEGSystem, ChannelReductionParams, ...

Any help would be greatly appreciated!

[ksgfan]

Could you share data from one subject and the chanlocs file with me? It would be much easier this way.

You can add me to a dropbox folder: Dawid.strzelczyk@uzh.ch

[pauldhami]

Hi Dawid,

I have shared it via Google Drive (hope that is okay).

Thank you for looking at it!

[ksgfan]

Sure, that's fine, but my google account is ksgfan13@gmail.com :)

[ksgfan]

It works on my machine. Are you sure that you set:

'locFile', 'neuroscan64_chanloc.ced'

and

'fileLocType', 'ced',...

? best, Dawid

[pauldhami]

Hi Dawid,

thanks for checking. I unfortunately am still running into the same error as posted in my second message. I thought it was perhaps related to how I set up my paths, so I even loaded into Matlab the EEGlab data structure (of the file I shared with you) and ran:

[EEG_out, plots] = preprocess(EEG, params)

But am still running into the same error.

Just to double check, this is the full path of where I placed the neuroscan64_chanloc.ced. Does that seem okay?:

/Users/pauldhami/Documents/MATLAB/Add-Ons/automagic-master/automagic-master/matlab_scripts/neuroscan64_chanloc.ced

[pauldhami]

Hi Dawid,

I did a clean reinstall of Automagic, and everything seems to be working fine now. I must have done something wrong with the paths or something along those lines.

Thank you for your assistance!

[ksgfan]

Hi Paul,

thats great! If you require any further information, feel free to contact me.

Best, Dawid