Distribution of heliocentric cylindrical R (left) and Z (right) for stars in our 6D sample. The green histograms are for members of the Helmi streams. With black symbols, we show the mean counts obtained using 10⁴ random sets extracted from our (background) halo sample, with the grey and black error bars indicating the 1σ and 3σ uncertainties for each R/Z-bin. The Helmi streams are clearly more confined in the R-direction.