EEGLAB - Rename an event

Hi,

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,

Aymeric

Answer 1

[Dave B]

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, '"', '');
end

Answer 2

[COLLART Aymeric]

Thanks a lot for this answer, the code you provided perfectly worked!