Figure : Correlations between unsigned error (UE) and distance values for various transition lengths in case of the NEQ method. "600 ps" denotes the recommended standard protocol, whereas "Apo" denotes the same protocol but using apo structures at λ = 0 end-point. "num" and "corr" in the inset denote the fraction of total dataset (in % terms) with zero overlap and Pearson's r, respectively, in each case.