Figure 4

Distances for all 100M points on human chrX, plotted as distances from pivots p ₁ and p ₂ . The median distance (d _m = 80) is shown as a dashed blue line, and the exclusion points are shown as the red points in the middle (all points d _m ± τ = 2). The two outlying points at d = 0 are the pivot points themselves, which were selected to be at the median distance from each other.