Gaussian-smoothed distributions of BGGs luminosity density field values (left) and stellar masses (right) in two distance bins from the nearest filament spine. The error corridors in each bin show 95% confidence levels calculated using bootstrap resampling. A two-sample KS-test was run on the distributions in each panel. The resulting p-value of the test is shown in the plots. The “in” and “out” samples have comparable distributions of luminosity density and stellar mass.