[Eeglablist] Matrix of ICA component activations (time courses)

[Makoto Miyakoshi]

Dear Omid

In order for eeg_checkset to work you should have EEG.icaweights and
EEG.icasphere. Please check if you have these two in your EEG structure.

Makoto


2013/8/6 omid abbasi <omidabbasi2000 at gmail.com>

> Dear Maktoo
>
> Thank you for your answer
>
> EEG.icaact is an empty matrix in my workspace. I applied the command (EEG
> = eeg_checkset(EEG, 'ica');) that you said but again EEG.icaact is empty.
> What should i do now. Is there any other solution?
>
> Best Wishes
> Omid
>
>
> On Mon, Aug 5, 2013 at 9:25 PM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu>wrote:
>
>> Dear Omid,
>>
>> It is EEG.icaact that has the size of number of IC x data length. If you
>> don't see it, run this
>> EEG = eeg_checkset(EEG, 'ica');
>>
>> Maktoo
>>
>>
>> 2013/8/5 omid abbasi <omidabbasi2000 at gmail.com>
>>
>>>  Hi all
>>>
>>> I imported an EEG signal with 7 epochs to EEGLAB and i applied ICA to
>>> remove some artifacts. Now i can plot ICA component activation (time
>>> courses) using plot>component activations. But i can't find the variable or
>>> matrix in workspace related to ICA component activation. I know that I can
>>> find ICA component using EEG.icawinv matrix in workspace.
>>>
>>> It means if the ICA decomposition equals:
>>>
>>> U=WX
>>>
>>> where X (EEG channel recordings) and U (ICA component activations) are n
>>> *t matrices (n channels (rows) by t time points (columns)), and W (ICA
>>> weights (EEG.icawinv )) is n* n. I want to know how i can have matrix of U
>>> in EEGLAB?
>>>
>>>
>>> Best Wishes
>>> Omid
>>>
>>>
>>> On Fri, Aug 2, 2013 at 9:00 PM, <eeglablist-request at sccn.ucsd.edu>wrote:
>>>
>>>> Send eeglablist mailing list submissions to
>>>>         eeglablist at sccn.ucsd.edu
>>>>
>>>> To subscribe or unsubscribe via the World Wide Web, visit
>>>>         http://sccn.ucsd.edu/mailman/listinfo/eeglablist
>>>> or, via email, send a message with subject or body 'help' to
>>>>         eeglablist-request at sccn.ucsd.edu
>>>>
>>>> You can reach the person managing the list at
>>>>         eeglablist-owner at sccn.ucsd.edu
>>>>
>>>> When replying, please edit your Subject line so it is more specific
>>>> than "Re: Contents of eeglablist digest..."
>>>>
>>>> Today's Topics:
>>>>
>>>>    1. 2013 EEGLAB workshop at UCSD following SFN,       November 14-18,
>>>>       2013, San Diego (Arnaud Delorme)
>>>>
>>>>
>>>> ---------- Forwarded message ----------
>>>> From: Arnaud Delorme <arno at ucsd.edu>
>>>> To: eeglablist <eeglablist at sccn.ucsd.edu>
>>>> Cc:
>>>> Date: Thu, 1 Aug 2013 21:11:55 -0700
>>>> Subject: [Eeglablist] 2013 EEGLAB workshop at UCSD following SFN,
>>>> November 14-18, 2013, San Diego
>>>> The 17th EEGLAB workshop will be held at University of California San
>>>> Diego in La Jolla following the Society for Neuroscience meeting, November
>>>> 14-18, 2013.
>>>>
>>>> This will be a multiple-track workshop in which group lectures will
>>>> alternate with basic EEGLAB how-to sessions intended for beginners or, for
>>>> more experienced attendees, sessions on more advanced EEGLAB plugin (NFT,
>>>> SIFT, BCILAB, MPT, MoBILAB, AMICA).
>>>>
>>>> More details are available on the workshop website:
>>>> http://sccn.ucsd.edu/wiki/EEGLAB_2013_UCSD
>>>> Workshop registration is now open via EventBrite:
>>>> http://www.eventbrite.com/event/6654940105
>>>>
>>>> A. Delorme
>>>> S. Makeig
>>>>
>>>> _______________________________________________
>>>> eeglablist mailing list eeglablist at sccn.ucsd.edu
>>>> Eeglablist page: http://www.sccn.ucsd.edu/eeglab/eeglabmail.html
>>>> To unsubscribe, send an empty email to eeglablist-unsub at sccn.ucsd.edu
>>>> To switch to non-digest mode, send an empty email to
>>>> eeglablist-nodigest 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
>>
>
>


-- 
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/20130806/098ad60e/attachment.html>