[Eeglablist] Importing .mat Data

[Makoto Miyakoshi]

Dear Mostafa,

> 1) clear to me which of these numbers means epoch and the frame per epoch
in EEGLAB.

EEGLAB's EEG.data is ch x datapoints. When it is epoched, ch x datapoints x
epochs.

> 2) When I try to import this file to EEGLAB from file-->import
data-->Matlab array even i put the number of channels 18 after importing
it, the information about data load in a bad way. I get these information
channels per frame  36
frames per epoch     18
epochs    10
How can I import my data correctly?

Without checking with Matlab,

for subj = 1:36
tmpSubj = squeeze(data(subj, :,:,:)); % extract one subject at a time and
remove singleton dimension
tmpSubj = permute(tmpSubj, 1,3,2); % swap data dimensions to fit EEG.data
format
% and use EEGLAB import function here to import tmpSubj to the data
% and save the current data into .set file with appropriate names
end

Makoto

On Thu, Oct 23, 2014 at 6:09 AM, Mostafa Rz <mostafa.rouzbahani at gmail.com>
wrote:

> Hi all
>
> I have an EEG data with .mat format. It's size is [36,18,10,2560].
> These number means:
>
> 36 person which EEG record from them
> 18 channel
> 10 times this recording repeat for everyone
> and the recording take longs 2560 sample with 512 sampling rate its mean
> 5s
>
> I have two question
>
> 1) clear to me which of these numbers means epoch and the frame per epoch
> in EEGLAB.
>
> 2) When I try to import this file to EEGLAB from file-->import
> data-->Matlab array even i put the number of channels 18 after importing
> it, the information about data load in a bad way. I get these information
> channels per frame  36
> frames per epoch     18
> epochs    10
> How can I import my data correctly?
>
>
> Kind regards,
>
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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