Frequency of strings detected in our Random (upper panel), Cauchy (middle panel), and Swapping (lower panel) models as functions of the number of members per string (N_members). The different shaded areas enclose the 1σ, 2σ, and 3σ dispersion in each of these models. In all panels, the blue squares represent the detected APOGEE strings in Orion A at l ≥ 210 deg. The vertical dashed line indicates the minimum number of sources considered to define our APOGEE strings, with N_member ≥ 4.