Predicted distance variability values are shown against actual distance errors for T0552 and T0598. The results of T0552 are shown in panel A and B, and those of T0598 are shown in panel C and D. The variability values by Sigma-RF, σ
, (green) show better correlation with true distance deviations, σ
|, than those by Modeller, σ
, (red). The blue lines represent the linear correlation, y=x.