[Eeglablist] exporting cluster ERPs

[mirek]

Dear Makoto

I guess you meant: STUDY.cluster(1,x).erpdata ?
They look like the ICs ERPs, I was looking for. Moreover, they're 
divided into categories according to study design.
I'll try to export them and see if it's everything I needed.
Thank you a lot!

Sincerely,

Mirek





> Dear Mirek and Arno,
>
> I usually run 'plot ERP' from edit/plot GUI, and press ok to close.
> This will load and store erps for STUDY.cluster(1,x).icaerp, so I use
> them. Note those values are subject to changes defined by 'Params' for
> filtering and time range.
>
>> Are the ERP waveforms of the ICs' ERPs stored in *.icaerp files?
> Arno?
>
> Makoto
>
>
> 2012/5/21 mirek<3mirek at gmail.com>:
>> Hi everybody,
>>
>> I am trying to export ERPs of ICs clusters for more detailed statistical
>> analysis.
>> I have written a simple script which has to export full ERP waveform
>> from all the
>> ICs belonging to a given cluster.
>>
>> The problem is, that the average I get from these ERPs differs when
>> comparing to the plots obtained using 'Study>    Edit/plot clusters>    Plot
>> ERPs'.
>>
>> I was trying to debug the script step by step but it seems to work as I
>> intended. Instead, I think that my idea of exporting data may be wrong.
>>
>> So the basic question is:
>> Are the ERP waveforms of the ICs' ERPs stored in *.icaerp files?
>>
>> If no, could anybody suggest which data should be exported to match
>> these plotted with 'Edit/plot cluster?
>>
>>
>> I would appreciate any help.
>>
>> Sincerely.
>>
>> Mirek
>>
>>
>> PS.
>> If anyone wants to look at the script, it can be downloaded from:
>> http://149.156.85.6/hidden/export_CLS_erps.m
>>
>> It works as follows:
>>
>> I use the first study design with two conditions (PIC+ and PIC-), so the
>> files are named: 'NN_PIC-.icaerp' and 'NN_PIC+.icaerp'
>> loop 1:
>> - it identifies from which components the cluster consists of SS IC CC
>> [SS - subject number; CC - component number within this subject] (let's
>> say, the cluster no 10 consists of subj01ic03, subj02ic05, subj04ic08,
>> subj05ic04 .......)
>> - for each of two conditions the proper icaerp file is read (lets's say:
>> 01_PIC-.icaerp and 01_PIC+.icaerp)
>> - then the variable 'compCC' is read and put to the 'erpdata' matrix in
>> order to be later exported to text file. 'erpdata2' contains additional
>> data about between-group factor and subject/component numbers.
>> loops 2-3:
>> - writes file header of the export file
>> loop 4:
>> - writes the data (-1000 to 2000 ms, 256 samples /sec)
>>
>>
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