[Eeglablist] Why is Phase Coherence Greater than 1?

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Thu Jul 24 10:01:38 PDT 2014

Dear Arnon,

Thanks for reporting it. Please describe how to replicate it in our
environment so that we can work on it. Thank you for your cooperation.


On Wed, Jul 23, 2014 at 11:12 AM, Mister Arnold <abarnyeu at hotmail.com>

> Hi all,
> I have been trying to compare the phase coherence (phase locking value) of
> 2 channels of the same data set.
> From my understanding, coherence should always be a value between 0 and
> 1.  However, when I use the pop_newcrossf() function to plot the coherence,
> I obtain values which are as large as 1.30 e+007.
> Is this expected and how can I change it back to a value that is between 0
> and 1?
> Any suggestions is appreciated.  Thanks very much.
> Arnon
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Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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