Common channel file error

1

Dear experts, I want to compute time frequency decompositions using morlet.

However, I have realized that the subjects have different number of channels. Most have 223, but some have 221. I run the process 'Uniform list of channels' but I still get the following warning error

Warning: The channels files from the different studies do not have the same structure. Cannot create a common channel file.

Error: Input files do not have the same number of channels: Cannot compute average.

Could you please offer a solution and let me know if I have to repeat the pre-processing on the files with the extra channels

With kind regards

Haris

2

Hi Haris,

The error message you have is related with the fact that you are trying to average two channels files where at least one electrode has 3D location in one channel file but not in the others.
If you want to avoid this problem: fix the list of channels before setting the electrodes positions.
Or in the process "Uniform list of channels", use the option "Keep only the common channel names" instead of what you selected.

François