[Eeglablist] relationship between no of channels and no of components

[Piotr Jaskowski]

Dear All,
               I run ICA with 32-channel segmented data. I expected to get
32 ICA components. In fact, I've got only 22 components and a following
message:
 
Input data size [22,51775] = 22 channels, 51775 frames/nAfter PCA dimension
reduction,
  finding 22 ICA components using extended ICA.
 
Could anybody explain me where the remaining 10 components disappeared?  
 
Best regards,
Piotr
---------------------------------------------------
Prof. Piotr Jaskowski, Ph.D.
Department of Cognitive Psychology
University of Finance and Management
Pawia 55, 01-030 Warszawa, Poland
http://cogn.vizja.pl
 





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