[Eeglablist] Save epoch subsets

[Eric Rawls]

This is because you replace the original dataset with the new set in EEG =
pop_select( EEG,'trial',[1:30] );

Instead try

%Load File

EEG = pop_loadbva(filliste(n).name);


%Create new sets containing only the selected trials

EEG1 = pop_select( EEG,'trial',[1:30] );

EEG2 = pop_select( EEG,'trial',[31:60] );
EEG3 = pop_select( EEG,'trial',[61:90] );

%Save these sets
EEG1 = pop_saveset( EEG1, 'filename','EEG_1','filepath',savedir);
EEG2 = pop_saveset( EEG2, 'filename','EEG_2','filepath',savedir);
EEG3 = pop_saveset( EEG3, 'filename','EEG_3','filepath',savedir);

This way you never replace the main EEG set.
E


Eric Rawls
University of Arkansas

On Fri, Apr 6, 2018 at 1:07 AM, Dagfinn Matre <Dagfinn.Matre at stami.no>
wrote:

> Dear EEGLAB experts,
>
>
>
> Using a matlab script, I would like to split an epoched file with say 90
> epochs into subset 1 (epoch 1:30), subset 2 (31:60), subset 3 (61:90), and
> save these subsets in separate set-files.
>
>
>
> It works fine for the first subset with this code:
>
>
>
> EEG = pop_loadbva(filliste(n).name);
>
> EEG = eeg_checkset( EEG );
>
> EEG = pop_select( EEG,'trial',[1:30] );
>
> EEG = eeg_checkset( EEG );
>
> [ALLEEG EEG CURRENTSET] = pop_newset(ALLEEG, EEG, 1,'setname','temp','gui'
> ,'off');
>
> EEG = pop_saveset( EEG, 'filename',new_filename,'filepath',savedir);
>
>
>
> The problem appears when I want to re-select the mother dataset containing
> all epochs in order to select the next subset. Using the GUI and saving the
> eeglabhist.m indicates that this is the next line of code,
>
>
>
> [ALLEEG EEG CURRENTSET] = pop_newset(ALLEEG, EEG, 2,'retrieve',1,'study'
> ,0);
>
>
>
> but when I continue with this line, selecting the next trials, matlab
> returns “Error: dataset is empty”.
>
>
>
> EEG = pop_select( EEG,'trial',[31:60] );
>
>
>
> Any ideas anyone?
>
>
>
> Best,
>
> Dagfinn Matre
>
>
>
>
>
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