[Eeglablist] Plotting ERSP scalp maps in STUDY

[Makoto Miyakoshi]

Dear Pete,

I experienced with similar problem that EEGLAB study function
complains about channel location or something. Please check your
EEGLAB version, and if it is latest or around, try older versions. It
worked for me. We would appreciate if you are kind enough to report it
to our bugzilla.

Makoto

2012/9/18 Pete Manza <pete.manza at gmail.com>:
> Hi all,
>
> I have 64-channel data in a STUDY design -- when I've precomputed ERSP
> values via the GUI, I have no problem plotting the scalp maps for all
> electrodes.  Recently, I precomputed the values with this code:
>
> [STUDY, ALLEEG] = std_checkset(STUDY, ALLEEG);
> [STUDY ALLEEG] = std_precomp(STUDY, ALLEEG,
> {},'allcomps','on','recompute','on','ersp','on', 'erspparams', {'cycles' [3
> 0.5] 'baseline' -5100 'freqscale' 'linear' 'tlimits' [-5300 2000] 'timesout'
> 600 'freqs' [3 30] 'nfreqs' 56 },'itc','on')
>
> The ERSP maps for individual electrodes come out fine -- but when I try to
> plot the scalp map with all 64 electrodes, I get the following error:
>
> Reading all ERSP data:Warning: Channel "cp4" and maybe others was not
> found in pre-computed data file
>> In std_chaninds at 54
>   In std_readfile at 134
>   In std_readersp at 214
>   In std_erspplot at 180
>   In pop_chanplot at 303
>   In inputgui at 182
>   In pop_chanplot at 269
> ??? In an assignment  A(:) = B, the number of elements in A and B
> must be the same.
>
>
>
>
> When I try to plot electrodes like CP4 individually, it works just fine --
> but when I try to do the scalp map, it seems that several electrodes are not
> reading properly.  I can plot a few electrodes (I tried plotting 5
> posterior-central electrodes and the localized map came out fine), but it
> seems several electrodes aren't reading.  What am I missing?
> Thanks so much,
> Pete
>
> _______________________________________________
> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
> To unsubscribe, send an empty email to eeglablist-unsubscribe at sccn.ucsd.edu
> For digest mode, send an email with the subject "set digest mime" to
> eeglablist-request at sccn.ucsd.edu



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