[Eeglablist] Component Spectra at All Channels

[Makoto Miyakoshi]

Dear Marco,

Sorry for slow response. I finally got it.
In my environment the results are shown as

 7.88  +/-  3.17

also in the help,

  Outputs:
         contrib  = contribution of each component (if 'icamode' is
'normal', relative
                    variance, if 'icamode' is 'sub', percent variance
accounted for)
         specstd  = spectrum standard deviation in dB

So the second column is standard deviation (dB).

Makoto

2012/11/17 Marco Montalto <montaltomarco at onvol.net>:
> Dear Makoto,
>
> Thanks for your reply. I chose Plot > Component Spectra and Maps
>
> Settings modified: Electrode number to analyse = 0 (whole scalp)
>  Percent data to sample = 100
> [Checked] Compute comp spectra [Unchecked] (data-comp) spectra = Unchecked
>
> Thanks once again and looking forward to your reply.
>
> Regards,
> Marco
>
> On 17 Nov 2012, at 06:42, Makoto Miyakoshi <mmiyakoshi at ucsd.edu> wrote:
>
> Dear Marco,
>
> Looks like that's an output of envtopo function. Could you tell me
> which function you ran?
>
> Makoto
>
> 2012/11/13 Marco Montalto <montaltomarco at onvol.net>:
>
> Dear List,
>
> I am trying to plot component spectra at all channels (therefore unchecking
> tick box 'compute comp spectra') and am getting the following results:
>
> Component 1 percent variance accounted for:  7.88    3.17
> Component 2 percent variance accounted for:  3.21    6.31
> Component 3 percent variance accounted for: 11.75    10.99
> Component 4 percent variance accounted for: 13.62    18.30
> Component 5 percent variance accounted for: 22.75    20.42
> (…)
>
> I understand that the values in the left-hand column represent percent
> variance accounted for by component. But what do the values in the
> right-hand column represent? Are they eigenvalues?
>
> Thanks for any information you may supply me with.
>
> Regards,
> Marco Montalto
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>
> --
> Makoto Miyakoshi
> JSPS Postdoctral Fellow for Research Abroad
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
>
>



-- 
Makoto Miyakoshi
JSPS Postdoctral Fellow for Research Abroad
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego