Simply EEGLAB

ALLEEG & dataset management

Station 1 · Lesson 4 · EEGLAB 2026.1

In the GUI

EditSelect data eeglab_data.set
Channel(s) EOG1 EOG2
on->remove these
OK
What do you want to do with the new dataset?Name it: Continuous EEG DataD1 no EOG
Save it as file:
Overwrite it in memory (set=yes; unset=create a new dataset)
OK
Datasets Dataset 1:Continuous EEG DataDataset 2:D1 no EOG
EditDelete dataset(s) from memory
Dataset(s) to delete: 2
OKDatasets

Script

[ALLEEG, EEG, CURRENTSET, ALLCOM] = eeglab;
sampleFolder = fullfile(fileparts(which('eeglab')), 'sample_data');
EEG = pop_loadset('filename', 'eeglab_data.set', 'filepath', sampleFolder);
[ALLEEG, EEG, CURRENTSET] = eeg_store(ALLEEG, EEG, 0);
EEG = pop_select(EEG, 'rmchannel', {'EOG1', 'EOG2'});
[ALLEEG, EEG, CURRENTSET] = pop_newset(ALLEEG, EEG, CURRENTSET, ...
    'setname', 'D1 no EOG', 'gui', 'off');
CURRENTSET                            % 2
[ALLEEG(1).nbchan ALLEEG(2).nbchan]   % 32 30
[ALLEEG, EEG, CURRENTSET] = pop_newset(ALLEEG, EEG, CURRENTSET, 'retrieve', 1);
EEG.nbchan                            % 32
ALLEEG = pop_delset(ALLEEG, 2);
eeglab redraw;

Which value should I choose?

Option	When to use it
Create a new dataset (the default)	You want to compare with the previous version, or you are not sure about the step yet.
Overwrite it in memory	Memory is limited, or you no longer need the previous version in this session.
Save it as file:	You want to keep this version after closing MATLAB. Give it a new name so you do not overwrite the original file.

Check

After step 1, the first line of the main window is #2: D1 no EOG, with 30 channels
The Datasets menu lists two datasets, with a check mark on the current one
After switching to dataset 1, the main window shows #1 and 32 channels
After deleting, the Datasets menu lists dataset 1 only

In the GUI

Script

Which value should I choose?

Check

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