Histograms showing the offsets between the estimated and the “true” values for SFR (left) and M_★ (right). Every column shows the results on a different set of synthetic data (generated as described in Fig. 3.4). The blue histograms are for Z = 0.008 and the purple for Z = 0.02. The CIGALE parameters used for every run are the same as for the observed data and as shown in Table. C.1.