[Eeglablist] phase angle unit in ERPimage

[Arnaud Delorme]

> I'd like too use ERPimage in order to classify the trials. I'd like to 
> sort the different values that ERPimage produce:
> - I can sort the phase angle (phsangle) and the amplitude phase 
> (phsamp) at any time, but I don't understand their units : what are 
> the units of these vectors ? How can we convert the phase angle unit 
> to radians ?

For the amplitude, the measure is unitless since the wavelet filters 
have not been normalized (this will be fixed in a later version). For 
the angle, the measure is already given in radian.

> - I'd like to sort the absolute power in each frequency before and 
> after the stimulus: is it possible to sort this value at any time ?

Yes, use the option 'amsort'.

Arno

-- 

*Arnaud Delorme, Ph.D.*
Computational Neurobiology Lab, Salk Institute
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