[Eeglablist] Can I manually reorganise the order of trials within set files and save them?

[Makoto Miyakoshi]

Dear Carolin and Steve,

Yes, I agree with Steve. I believe there is no other way to do it.

Makoto

On Thu, Apr 30, 2015 at 5:05 AM, Stephen Politzer-Ahles <spa268 at nyu.edu>
wrote:

> Hi Carolin,
>
> Have you tried running this code to see if it actually does re-order your
> events? It should be fairly straightforward to check (i.e., see what the
> event values for the first few trials are before and after running your
> 'list 2' code).
>
> If that doesn't work, I imagine it should be easy to do manually by just
> re-ordering the indices of all the relevant data structures, e.g.:
> order = [2 5 6 1 4 8 9 7 3];
> EEG.data = EEG.data(:,:,order);
> EEG.epoch = EEG.epoch{order};
> % etc...
>
> There may also be built-in functions in EEGLAB or ERPLAB that do this, but
> I'm not aware of any myself.
>
> Best,
> Steve
>
>
>
> Stephen Politzer-Ahles
> New York University, Abu Dhabi
> Neuroscience of Language Lab
> http://www.nyu.edu/projects/politzer-ahles/
>
> On Tue, Apr 28, 2015 at 6:15 PM, Carolin Sievers (PSY) <
> Carolin.Sievers at uea.ac.uk> wrote:
>
>>  Hello EEGlab community,
>>
>>  I am trying to reorganise the order of trials in my EEG .set files.
>> I was hoping to use the following function:
>> EEG = pop_selectevent( EEG, 'epoch',[]
>> ,'deleteevents','off','deleteepochs','on','invertepochs','off');
>>
>>  If I put in parentheses the trials I would like to include, in the
>> order I would like them to be in in a new .set file, will this work?
>>
>>  If this is unclear, here some more details:
>> Based on behavioural data, we create two or more sub-sets from one EEG
>> recording. However, within these sub-sets, the order in which stimuli were
>> presented is not the same. Is there a way for me to reorganise the order of
>> trials and save that order in a new .set file? E.g.,
>>
>>  List 1
>> EEG = pop_selectevent( EEG, 'epoch',[1:9]
>> ,'deleteevents','off','deleteepochs','on','invertepochs','off');
>>
>>  List 2
>> EEG = pop_selectevent( EEG, 'epoch',[2 5 6 1 4 8 9 7 3]
>> ,'deleteevents','off','deleteepochs','on','invertepochs','off');
>>
>>  Thank you very much for your help.
>>
>>   Best wishes,
>>  Carolin
>>
>> _____________
>>  Carolin Sievers (PSY)
>> PhD Student
>> School of Psychology
>>  LSB 0.109
>>  University of East Anglia
>>  Norwich, NR47TJ
>>
>>  https://www.uea.ac.uk/psychology/people/profile/carolin-sievers
>> Carolin.Sievers at uea.ac.uk
>>
>> _______________________________________________
>> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
>> To unsubscribe, send an empty email to
>> eeglablist-unsubscribe at sccn.ucsd.edu
>> For digest mode, send an email with the subject "set digest mime" to
>> eeglablist-request at sccn.ucsd.edu
>>
>
>
> _______________________________________________
> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
> To unsubscribe, send an empty email to
> eeglablist-unsubscribe at sccn.ucsd.edu
> For digest mode, send an email with the subject "set digest mime" to
> eeglablist-request at sccn.ucsd.edu
>



-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sccn.ucsd.edu/pipermail/eeglablist/attachments/20150505/e95fb0d2/attachment.html>