[Eeglablist] Problem with Plotting Channel Spectra and Map

Donia ZaheriSarabi donia at vt.edu
Wed Aug 5 23:46:15 PDT 2015


Hi,

Thanks for responding. I do have the channel locations (both for my data
and the sample data). May I ask if you have any other guess?


Thank you,
Donia

On Mon, Aug 3, 2015 at 5:29 PM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
wrote:

> 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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