[Eeglablist] spectopo with just the values without plotting

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Thu Dec 4 11:35:01 PST 2014

Dear James,

Use 'plot', 'off' option to turn it off when you use spectopo(). For full
detail, type 'help spectopo' in the matlab command window.


On Wed, Nov 26, 2014 at 8:48 AM, James Bonello <jamesbonello9 at gmail.com>

> Hi EEGLablist,
> I am trying to calculate the PSD value for a range of frequencies, for 23
> channels, for 1799 epochs. Spectopo gets the required psd values well, but
> it is also integrated with the whole plotting part as well. Due to this,
> this computation greatly decreases in speed after a short number of epochs
> (after around 13 - 20) and before considering parallelisation (any knows if
> such a parallelisation is made simple by some EEGLab function), I would
> first like to verify that the efficiency drop is not just due to the whole
> added plotting part. If that is the case, I would like to know whether a
> raw spectopo version which does not perform plotting but just gives the
> required values is available. Thanks in advance!
> Regards,
> --
> *James Bonello*
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Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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