Scatter plots of errors on the x-axis for the DEEPz method and on the y-axis for the errors obtained when determining z_p using the BCNz2 method. Top panel: scatter plot of errors for each method along with a histogram showing the distribution of points along each axis. Bottom-left panel: scatter plot of errors for each method colour-coded according to the apparent magnitude in the i-band. Bottom-right panel: scatter plot of errors for each method colour-coded according to z_s.