(First 2 panels on the left) Relative errors on M₂₀₀ (black) and c₂₀₀ (red) estimated by the two methods. The median values are indicated by a dashed line. (3rd and 4th panel from left) Ratios between the best-fit result on the scale radius r_s (3rd panel) and on R₅₀₀ (4th panel) and outermost radius reached with the spatial analysis.