ryand1 at goldmail.etsu.edu
Tue May 28 14:21:08 PDT 2019
I’ve been using spectopo (EEGLAB v14.1.1 and v2019.0) on 64 channel data
(Neuroscan system), to get spectral density power for a single channel.
Now I’m using a different data set from another source (g.tech amps,
g.recorder, 32 channels, *.hdf5) and I get an error when I run spectopo
(see below). I use the same code for two different data sets (Neuroscan 64
chan & g.recorder 32 chan) and only get an error for the g.recorder 32
channel data. I’ve also tried the two different import plugins.
What have I done wrong?
FYI, the variable Pz references the channel number from the montage.
> [spectra,freqs] = spectopo (EEG.data(Pz,:,:), 0, EEG.srate);
Computing spectra (window length 256; fft length: 256; overlap 0):
Undefined function or variable 'eegspec'.
Error in spectopo>spectcomp (line 969)
eegspecdB = eegspec/n; % normalize by the number of sections
Error in spectopo (line 334)
[eegspecdB freqs specstd] = spectcomp( data, frames, srate,
David Ryan, Ph.D.
Research Health Specialist
Mountain Home VA Health Care System (621)
Auditory Vestibular Research Enhancement Award Program (REAP)
(423)-926-1171 Ext. 7575
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