How to calculate the RMS (root mean square) of a pair of planar gradiometer sensors?

  • MNE version: 0.24.0
  • operating system: macOS 13.5
  • MEG data acquisition: Elekta Neuromag

Hello!

I want to calculate the ERF (event-related fields) based on planar gradiometer sensors (whole brain).
Should I calculate the RMS (root mean square) of a pair of planar gradiometer sensors (totally 102 pairs) and get the mean of them (totally 102 pairs)?
Is there any function to achieve this?

Any suggestion would be much appreciated!