Top panel: downsampled magnetic field (black, to LAP-MIP resolution) and full-resolution LAP-MIP electron density (green, values divided by 10). Middle panel: smoothed data over 30 data points. A signature of an anticorrelation between B and N_e is discernable. Bottom panel: scatter plot of magnetic field strength vs. electron density. The red points show the mean of the magnetic field with error bars for consecutive intervals of N_e of 10 cm⁻³ width.