Upper panel: comparison between the true value of the output parameter provided by the best-fit model for the mock catalogue (x-axis) and the value estimated by the code (y-axis), for M_star, L_dust, SFR and AGN fraction. The Pearson product-moment correlation coefficient is given as an “r” value. The blue line corresponds to the 1:1 relation, while the red dashed line is a regression line with the equation given in the legend. Δ represents the mean difference between estimated and exact values and the standard deviation of that difference. Bottom panel: distribution of estimated minus exact parameters from upper panel. Red dashed lines correspond to median values, while black dotted lines represent mean values.