Robust scatter (σ_NMAD; upper panels) and outlier fraction (OLF; lower panels) for the consensus photo-z estimate (z_1, median) as a function of spectroscopic redshift and apparent i_PS1 magnitude. For the AGN subset (left panels) each cell corresponds to a minimum of 30 sources with the colour of the cell representing the scatter of that subset. For the galaxy plots (right panels) each cell corresponds to a minimum of 100 sources. The top and side bar of each panel shows the trends in σ_NMAD or OLF averaged over all magnitudes and redshifts respectively. For reference, we also plot the distribution of the spectroscopic training sample within this parameter space as grey contours – plotted contours are linearly spaced in source density.