Distributions of σ_PDF (defined as half the 84%−16% v_los values) of the PDFs predicted by our method. The sample is split into Halo and Disc stars, whose normalised histograms of the true decomposition are plotted with solid-filled colours. The likely decomposition, defined by the probability of membership greater than 80%, is plotted with lines. The median values for the distributions for stars belonging to different groups (based on Dodd23) are shown in different colours.