I have a .mat files which on loading shows the channel information in a format shown in the image below. It corresponds to 128 channel EEG data (A1, A2, …, A128). Can someone help me understand what do the numbers mean here (like, are the first three array elements in each row the x,y,z co-ordinates?). I will like to create a custom montage in MNE using these channel locs. What will be the efficient way to go for it?
I will appreciate the help.