χ² values of three different models computed using RF with a different number of input properties (colour coding). We show the results for the monopole and quadrupole for number densities, $\overline{n}[h^3{\mathrm{Mpc}}^{-3}]=\{{10}^{-2},{10}^{-2.5}\}$, at two different redshits (columns, z = 0 and z = 1). More information about how the χ² was computed can be found in Section 3.2.