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EEGLAB - Rename an event

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COLLART Aymeric on 22 Oct 2021
Answered: COLLART Aymeric on 26 Oct 2021
I need to reanalyze an EEG dataset that was already preprocessed with EEGLAB and ERPLAB. However, I discovered that a " sign was added to the label of a bin, and this sign is disturbing some other functions.
The dataset looks like this (I highlighted the cells I would like to change in blue and underlined the " sign to erase).
What I would like to do is to erase this " sign (as with the "find and replace" function in Excel). After going through a lot of similar questions and trying to implement the answers, nothing really worked.
Did anyone run into a similar problem, and if so, is there a solution to this problem?
Thank you in advance for the replies!
Best regards,

Accepted Answer

Dave B
Dave B on 22 Oct 2021
Edited: Dave B on 22 Oct 2021
In general, the excel-like find and replace can be done with strrep:
bad = {'a' 'b"' 'c'}
bad = 1×3 cell array
{'a'} {'b"'} {'c'}
good = strrep(bad,'"','')
good = 1×3 cell array
{'a'} {'b'} {'c'}
But I'm not 100% sure I follow what your data structure is. If you uploaded a mat file containing EEG it would be somewhat easier (save('eegdata','EEG')), maybe this would work (it removes all quotes regardless of the label):
for i = 1:numel(EEG.event)
EEG.event(i).codelabel = strrep(EEG.event(i).codelabel, '"', '');
EEG.event(i).binlabel = strrep(EEG.event(i).binlabel, '"', '');

More Answers (1)

COLLART Aymeric on 26 Oct 2021
Thanks a lot for this answer, the code you provided perfectly worked!


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