[FieldTrip] Negative values of debiased wPLI

Rodrigo Montefusco rmontefusco at med.uchile.cl
Tue Oct 13 17:59:33 CEST 2015

Hello...anybody any guess, explanation? I getting some too...close to zero
thought, but still negatives.

On Mon, Feb 16, 2015 at 9:09 AM, Marta Bortoletto <
marta.bortoletto at cognitiveneuroscience.it> wrote:

> Dear Community,
> I am using the debiased wPLI to estimate connectivity between 70 EEG
> electrodes. I have about 150 trials for each subject. I noticed that some
> values of my 70x70 dwPLI matrix are negative. My understanding is that all
> values should be between 0 and 1, but for some reason I can get negative
> values from the debiasing process. My question is: Shall I calculate the
> absolute value of these negative values? Otherwise what shall I do with
> them?
> Thank you in advance for your help.
> Marta
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