[Eeglablist] pop_spectopo specified channels, winsize and nfft

Nike gnanateja nikegnanateja at gmail.com
Thu Aug 6 10:19:16 PDT 2015


Dear Alex,
 I think what you are missing here is the 'plotchans' option. It should do
the trick

figure;[spectra,freqs] = spectopo(EEG.data, 0, EEG.srate,
'winsize',256,'freq', [6 10 12],'freqrange',[4 14], 'nfft',
512,'chanlocs',EEG.chanlocs,'electrodes','off','plotchans',1:8);


Regards,
Nike

-- 
G Nike Gnanateja, MSc (Audiology) <http://goog_636235333>
Junior Research Fellow,
Department of Audiology,
All India Institute of Speech
and Hearing Mysore-06


---------- Forwarded message ----------
> From: "alessandro.marassi at libero.it" <alessandro.marassi at libero.it>
> To: eeglablist at sccn.ucsd.edu
> Cc:
> Date: Sun, 2 Aug 2015 23:46:50 +0200 (CEST)
> Subject: [Eeglablist] pop_spectopo specified channels, winsize and nfft
> I have to plot single channel spectra computed in specified epochs' time
> ranges such as:
> pop_spectopo(EEG, 1, [-1000      0], 'EEG' , 'percent', 15, 'freqrange',
> [2 25], 'electrodes','off'
>
> Is it possible to plot with pop_spectopo only specified channels as they
> may be chosen in:
> [spectra,freqs] = spectopo(EEG.data(8,:), 0, EEG.srate, 'winsize', 256,
> 'nfft', 512); %
> possibly setting as well winsize and nfft in the same way as with the
> above spectopo call?
>
> As regards channels I tried to follow what has been suggested in:
> http://sccn.ucsd.edu/pipermail/eeglablist/2011/004445.html
> using an additional parameter " 'mapchans', 1:10 ", but without success.
>
> thanks,
> Alex
>
>
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