[Eeglablist] Problem with Plotting Channel Spectra and Map

[Makoto Miyakoshi]

Dear Donia,

My initial guess: you don't have channel locations, do you? The function
tries to plot scalp maps, so it requires channel locations.

Makoto

On Sat, Aug 1, 2015 at 12:01 PM, Donia ZaheriSarabi <donia at vt.edu> wrote:

> Hi Steve,
>
> Thanks for responding, my input data is a matlab array, I locate the
> channels, remove the baseline, run ICA, scroll data and reject part of it.
> and for channel spectra and maps, I select the sample size of 15% of data.
> I select "Channel Spectra and Maps" by GUI.
> I tried EEG sample data too and followed the tutorial for channel mapping
> and spectra, and got the same error again.
>
> Thanks,
> Donia
>
>
> On Sat, Aug 1, 2015 at 1:29 PM, Stephen Politzer-Ahles <spa268 at nyu.edu>
> wrote:
>
>> Hello Donia,
>>
>> To get help, you might need to provide more details about the format of
>> your data, how you have processed your data, and what commands you used
>> when you call "Channel Spectra and Maps".
>>
>> Best,
>> Steve
>>
>>
>>
>> Stephen Politzer-Ahles
>> New York University, Abu Dhabi
>> Neuroscience of Language Lab
>> http://www.nyu.edu/projects/politzer-ahles/
>>
>> On Sat, Aug 1, 2015 at 5:50 PM, Donia ZaheriSarabi <donia at vt.edu> wrote:
>>
>>> Hi,
>>> I'm trying to plot the channel spectra and map for my 4 channels EEG raw
>>> data, but when I use the "Channel Spectra and Map" in EEGLAB, I get this
>>> figure with empty spaces for the map (figure below). May I ask if anyone
>>> knows what is the problem?
>>>
>>> Link to the image: http://tinypic.com/r/wi7hb4/8
>>>
>>> P.S: I have signal processing toolbox install on my MATLAB
>>>
>>> Thanks,
>>> Donia
>>>
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>>
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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