Example of the data generated at one step of the MCMC routine for the lowest (0.2 ≤ z < 0.5) redshift bin, shown as number density from high (dark red) to low (dark blue). The MS being tested at this step, in this case the most likely step, is shown as the red line, while the contours for number density of the observed data are shown in orange. The size of the average observed error on SFR and M_⋆ is also shown as a blue cross.