Code not working on new laptop

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Lucie Aman 2024-7-2

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https://ww2.mathworks.cn/matlabcentral/answers/2133931-code-not-working-on-new-laptop

编辑： Stephen23 2024-7-9

Hello,

I have several scripts using EEGlab and one of its pluggin (mffimport). The scripts work well on other mac laptops (I've tried 3), but not on my new laptop (Macbookpro sonoma nov 2023). Any idea why?

I have changed the paths, dowloaded the necessarry toolboxes.

I have contacted EEGlab support who told me it's a matlab problem and I have contacted Matlab support who told me it is a code problem, not a software problem, but my code works well on other laptops...

THank you in advance for your help.

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Lucie Aman 2024-7-3

编辑：Walter Roberson 2024-7-8

thank you. I haven't given any details because I have multiple errors when I try to shunt some steps of the code using the GUI.

Here is the link with the scripts and the mff file: https://we.tl/t-svMJGXHHhi

The main script is calle pipelineMMN.m the first section establishes the directory and the path to the folder (loadpathMMN.m). The second section calls EEGlab and the MFFImport plugin to import the PiPWS_PWS023.mff file. The third section filters (this works) and epochs(doesn't work) the continuous EEG recording calling the script epoch_MMN.m

Let's start with the first error: I am using a script calling EEGlab and the MFFImport plugin to import mff files and convert them to get a .set and a .fdt file.

the error is Undefined function 'pop_mffimport' for input arguments of type 'char'.

Error in dataimport_MMN (line 16)

EEG = pop_mffimport(sprintf('%s%s', filepath, filename), 'code'); %needs MFFMatlabIO2.01 plugin

Error in pipelineMMN (line 49)

dataimport_MMN(basenames{i}, raw_dir)

I have tried to uninstall EEGlab and the MFFimport plugin, put them in different folders, but it seems that matlab doesn't recognise the function.

The second error when I import the file manually and try to epoch my EEG file, is the following:

Error using pop_epoch (line 279)

pop_epoch(): empty epoch range (no epochs were found).

Error in epoch_MMN (line 114)

EEG = pop_epoch(EEG,{},opt.timewindow,'eventindices',selectevents);

Error in pipelineMMN (line 58)

epoch_MMN(basenames{i}, 'indir', imp_dir, 'outdir', epo_dir, 'timewindow', [-0.1 0.6], 'lpfreq',

20)

It seems matlab cannot find epochs, but when I check using the GUI, I can see the epochs markers.

Many thanks for your help.

Lucie Aman 2024-7-8

The pop_mffimport function can be called from the command line.The problem seems to come from finding events (= epochs). I have highlighted the problematic line in the code below.

function dataimport_MMN(mfffiles, indir)

% Import mff files

dbstop if error

filepath = [indir filesep];

basename = mfffiles(1:19);

if isempty(mfffiles)

error('No files found to import!\n');

end

filename = mfffiles;

fprintf('\nProcessing %s.\n\n', mfffiles);

EEG = pop_mffimport(sprintf('%s%s', filepath, filename), 'code'); %needs MFFMatlabIO2.01 plugin

%Add marker at 5th tone (move to 600ms because S1@0ms, S2@150ms,

%S3@300, S4@450, S5@600ms)

fprintf('Adding markers to 5th tone.\n');

events = {'LAX', 'LAY', 'LBX', 'LBY', 'RAX', 'RAY', 'RBX', 'RBY'};

EEG.eventOrig = EEG.event; This is the bit not working

f = fieldnames(EEG.eventOrig)';

f{2,1} = {};

EEG.event = struct(f{:});

c = 1;

for q = 1:length(EEG.eventOrig)

cont = contains(events, EEG.eventOrig(q).type(1:3));

if (sum(cont))==1 % istrue fct but doesn't work anymore%

EEG.event(c) = EEG.eventOrig(q);

c = c+1;

EEG.event(c) = EEG.eventOrig(q);

EEG.event(c).type = [EEG.event(c).type '_5'];

EEG.event(c).latency = EEG.eventOrig(q).latency + 600*(EEG.srate/1000); %onset of 5th sound is 600ms after onset of 1st

c = c+1;

else

EEG.event(c) = EEG.eventOrig(q);

end

EEG.setname = sprintf('%s_orig',basename);

EEG.filename = sprintf('%s_orig.set',basename);

EEG.filepath = filepath;

loadPathMMN;

fprintf('Saving %s%s.\n',[filepath '/Analysis/Imported/'], EEG.filename);

pop_saveset(EEG,'filename', EEG.filename, 'filepath', [filepath '/Analysis/Imported'],'version','7.3');

Lucie Aman 2024-7-9

no it does not change

Stephen23 2024-7-9

编辑：Stephen23 2024-7-9

Follow these steps:

Try calling the function (from the command line in normal mode)
Save the path in a MAT file.
Call DBSTOP IF ERROR
Run the code
Try calling the function (from the command line in debug mode)
Save the path in a MAT file.
Upload the MAT files here.
Lets us know the results of each previous step.

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