[Eeglablist] newtimef

[Malte Anders]

Dear Sara,

please find my quick and dirty script attached to extract ERSP and ITC
matrices from .set EEGLAB data. You might want to alter the settings in the
newtimef-function to fit your specific case - its tailored to extract 200
frequencies at 400 timepoints at electrode 16 from the data. "times" is the
timevector and "freqs" the frequency vector where you can extract specific
time- and frequency-windows from.  'plotitc' , 'off', 'plotersp', 'off',
'plotphase', 'off turns the plotting option off.

Best,
Malte

clear all
ersp_average = struct();
itc_average = struct();

popfile = 'eeg_data.set'
popfolder = 'C:\\EEG_DATA\\final_new_average';
count_buf = 1;
for index = [1:26 101:112 201 202 204:215]
[ALLEEG EEG CURRENTSET ALLCOM] = eeglab;
indexnum = int2str(index)
EEG = pop_loadset('filename',popfile,'filepath',[popfolder '\\' indexnum
'\\']);
[ALLEEG, EEG, CURRENTSET] = eeg_store( ALLEEG, EEG, 0 );
[ersp,itc,powbase,times,freqs,erspboot,itcboot,tfdata] = newtimef(
EEG.data(16,:,:), EEG.pnts, [-1000  1996], 256, [3         0.8] ,
'topovec', 16, 'elocs', EEG.chanlocs, 'chaninfo', EEG.chaninfo, 'caption',
'Cz', 'baseline',[0],'nfreqs', 200, 'freqs', [3 100], 'plotitc' , 'off',
'plotersp', 'off', 'plotphase', 'off', 'ntimesout', 400, 'padratio', 1);
ersp_average.oc_pinprick_normal(:,:,count_buf) = ersp;
itc_average.oc_pinprick_normal(:,:,count_buf) = itc;
count_buf = count_buf + 1;
clear ALLCOM ALLEEG CURRENTSET CURRENTSTUDY EEG eeglabUpdater globalvars
LASTCOM PLUGINLIST STUDY ersp itc powbase
end
clear count_buf erspboot index indexnum itcboot popfile popfolder tfdata

Am Do., 21. Okt. 2021 um 17:18 Uhr schrieb Sara Kamali via eeglablist <
eeglablist at sccn.ucsd.edu>:

>
> Dear all,
>
>
> Is there any command to get the matrix of ERSP values of a channel on
> specific frequencies?
> With pop_newtimef the poping plot makes my code slow, and I do not
> need the plot.
>
> Best,
> Sara
>
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-- 
Mit freundlichen Grüßen,

Malte Anders