Coherence of random data

Robert Oostenveld r.oostenveld at FCDONDERS.RU.NL
Fri Feb 18 16:21:23 CET 2005

Hi Laurens

> If I am not mistaken you are using R (coherency) in FieldTrip instead
> of R^2
> (coherence). I think this caused a lot of confusion here,

I don't want to confuse you further since I am not sure how it is
defined in FieldTrip on channel level data. However, for source level
data (i.e. DICS) the result is stored in "source.avg.coh" and that
"coh" reflects R^2 = (Fxy.Fxy)/(Fxx.Fyy), i.e. coherence.


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