Distribution of discrepancy degree D_max obtained from H₀ distribution in 500 simulated isotropic datasets. The left panel and right panel show the results of isotropy and isotropy RP analyses, respectively. The black curve is the best fit to the Gaussian function. The solid black and vertical dashed lines are commensurate with the mean and the standard deviation, respectively. The red lines represent the discrepancy degree from the real data. The statistical significances of the real data are 1.70σ for the isotropy analysis and 2.27σ for the isotropy RP analysis.