Controlled sample for planets in the 2.7 to 4 R_Earth range. (Nearly-)resonant planets are shown by orange points, while non-resonant planets are shown by blue points. The p_value shown on the diagonal are 1D Kolmogorov-Smirnov test, while the p_value on the bottom-left triangle are 2D Kolmogorov-Smirnov tests (Peacock 1983). Median and uncertainties on the p_value are estimated by drawing 1000 samples assuming a Gaussian distribution for the radius of each planet, then computing the 0.16, 0.5, and 0.84th quantiles of the resulting p_value distribution.