channel locations

peng wang prion.w at GMAIL.COM
Tue Jun 23 21:03:07 CEST 2009

Dear list members,

	I am a new user of fieldtrip. I have some data preprocessed by fieldtrip. I want to find the channel location information from the field 'grad' in the dataset after this procedure. The original channel number should be 303, but in this field , it looks like this:
	  pnt:  [597*3];
	  ori:  [597*3]; 
	  tra:  [303*597];
	label:  {303*1 cell}
	 unit:  'cm'
  balance:  {1*1 struct}

It seemed there were some transformations(303->597). How did this happen? How can I retrieve the real location information of the sensors?Thank you very much for help!


The aim of this list is to facilitate the discussion between users of the FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG and EEG analysis. See also and

More information about the fieldtrip mailing list