The marginalized best-fit ﹩{{ \mathcal M }}_{{\rm{obs}}}﹩ from the ﹩{{ \mathcal M }}_{219}﹩ model (red lines) is compared to the marginalized ﹩{{ \mathcal D }}_{{\rm{kep}}}﹩ (blue histograms and blue lines). The two columns of plots show the differential (left) and cumulative distribution functions (right). From top to bottom, the rows of plots are the: (1) observed multiplicity (m_obs), (2) orbital periods of all planets (P_orb), (3) orbital periods of singles (planets in systems of observed multiplicity m_obs = 1), (4) orbital periods of multis (observed multiplicity m_obs≥2), and (5) orbital period ratios of neighbor planets (P_j/P_j−1 for 2 ≤ j ≤ m_obs). The green dashed lines in rows (3) and (4) are plotted for reference: the period distribution of multis in (3) and singles in (4). Note that the top plots show the planet multiplicity, as defined in Section 2.2.2, and not the system multiplicity as in W. Zhu et al. (2018) or M. Y. He et al. (2020).