Fraction of galaxies inside filaments and fraction of filaments volume fill for subsets. Upper panel: fraction of galaxies inside filaments for different subsamples (see Table 1). The solid lines show the results based on using all the galaxies in the full sample and the dashed lines using only galaxies of the subsample, that is the galaxies used to find the filaments for that subsample. Lower panel: filament volume filling fraction for different subsamples. Both plots show the values for the samples where cuts were done by magnitudes (mag) and also for the samples where cuts consist of randomly chosen galaxies (rnd), while keeping the same galaxy number density as the magnitude counterpart (see Table 1).