[Eeglablist] Spectopo Function Negative Power Values

Courtney Jimenez cojimenez at ucdavis.edu
Tue Nov 7 07:11:39 PST 2017

Hi all,

We are using eeglab's spectopo function to calculate power spectral density
estimates for our data. However, we're getting large negative values in
many channels across many frequencies.

How can we correct this?

We use the following code from the matlab command line:
spectopo(EEG.data(:,:),0,EEG.srate,'freqrange',[4 50],'title',EEG.setname)

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