[Eeglablist] Save EEG epochs in different files

[Alberto Cacciola]

Dear Makoto,

>>Ah, that makes sense. You need a short chunk of data to produce a map, if
I guess it correctly. I would, as usual, recommend you try ICA as an
alternative when you have time. It has very unique merit.

Yes, short chunk but enough data. I am using ICA on epoched EEG to
identify, reject and remove artifactual components from the data!


2016-10-18 11:24 GMT+02:00 Makoto Miyakoshi <mmiyakoshi at ucsd.edu>:

> Dear Alberto,
>
> > Makoto, I would need to import different data epochs in LORETA software
> for subsequent analysis(maybe it is not even necesarry but I am trying
> different apporaches).
>
> Ah, that makes sense. You need a short chunk of data to produce a map, if
> I guess it correctly. I would, as usual, recommend you try ICA as an
> alternative when you have time. It has very unique merit.
>
> Makoto
>
>
>
> On Tue, Oct 18, 2016 at 2:11 AM, Alberto Cacciola <
> alberto.cacciola0 at gmail.com> wrote:
>
>> Dear all,
>> many thanks for your help and quick response.
>> I fixed the problem creating a loop to save each epoch one at a time.
>> If it can help someone, here it is:
>>
>> for i=1:size(EEG.data,3)
>>         x = double(EEG.data(:,:,i));
>>         dlmwrite(['epochs\Epoch_' num2str(i) '.txt'],x,'\t')
>> end
>>
>> Makoto, I would need to import different data epochs in LORETA software
>> for subsequent analysis(maybe it is not even necesarry but I am trying
>> different apporaches).
>> Sorry for the strange question!!:)
>>
>>
>> Best
>> Alberto
>>
>> 2016-10-18 10:10 GMT+02:00 Makoto Miyakoshi <mmiyakoshi at ucsd.edu>:
>>
>>> Dear Alberto,
>>>
>>> There is EEGLAB function to export data into an ascii file. I don't know
>>> if you want to use it though if you have so many small epochs to be saved
>>> saparately.
>>>
>>> It's best to write a batch to do this. Are you familiar with it?
>>>
>>> I wonder what you want to do with that files. That's the strangest query
>>> I've ever heard!
>>>
>>> Makoto
>>>
>>> On Thu, Oct 13, 2016 at 2:41 AM, Alberto Cacciola <
>>> alberto.cacciola0 at gmail.com> wrote:
>>>
>>>> Dear all,
>>>>
>>>> First of all, sorry if my question can be stupid. I searched on the
>>>> previous messages of the mailing list but couldn't manage to find any
>>>> solutions,
>>>>
>>>> I am new with EEGlab. I splitted a resting state EEG in 2-s epochs as
>>>> follow:
>>>>
>>>> EEG = eeg_regepochs(EEG, 'recurrence', 2, 'limits', [0 2], 'rmbase',
>>>> NaN);
>>>>
>>>> and didn't encounter any problems.
>>>> Now I would like to save each epoch as a different file. For Instance,
>>>> if I have 90 epochs of 2sec I would save each of the epoch as a .txt or
>>>> .asc file, thus resulting in 90 independent files.
>>>> Is it possible? How should I proceed?
>>>>
>>>> Many thanks for your help
>>>> Alberto
>>>>
>>>>
>>>>
>>>>
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>>>
>>>
>>>
>>> --
>>> Makoto Miyakoshi
>>> Swartz Center for Computational Neuroscience
>>> Institute for Neural Computation, University of California San Diego
>>>
>>
>>
>
>
> --
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
>
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