Skip to main content
. 2021 Jul 6;26(14):4116. doi: 10.3390/molecules26144116

Table 4.

Statistical results for all CoMFA models obtained with and without the region focus.

No. Focus d h = 0.3 w = 0.5
d i = 0.5 d = 1.0 d = 1.5 d = 2.0 d = 0.5 d = 1.0 d = 1.5 d = 2.0
q2LOO a 0.64 0.76 0.83 0.81 0.73 0.82 0.89 0.86 0.62
SEP b 0.18 0.15 0.13 0.14 0.14 0.13 0.11 0.12 0.18
N c 5 5 6 5 5 6 6 6 3
r 2 d 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.93
SEE e 0.02 0.01 0.01 0.03 0.03 0.02 0.02 0.02 0.08
S f 0.53 0.49 0.50 0.52 0.52 0.53 0.52 0.55 0.58
E g 0.77 0.51 0.50 0.48 0.48 0.48 0.48 0.45 0.42
w = 0.7 w = 0.9
d = 0.5 d = 1.0 d = 1.5 d = 2.0 d = 0.5 d = 1.0 d = 1.5 d = 2.0
q 2 LOO 0.72 0.81 0.28 0.05 0.12 0.68 0.08 0.28
SEP 0.16 0.13 0.24 0.24 0.28 0.18 0.27 0.23
N 4 6 2 2 5 6 1 1
r 2 0.99 0.99 0.89 0.45 0.90 0.93 0.83 0.44
SEE 0.03 0.04 0.10 0.23 0.10 0.08 0.13 0.21
S 0.53 0.54 0.70 0.53 0.55 0.67 0.41 0.00
E 0.47 0.46 0.30 0.48 0.45 0.33 0.59 1.00

a: q2LOO, leave-one-out cross-validated coefficient; b: SEP, standard error of prediction; c: N, number of PLS components; d: r2, regression coefficient without validation; e: SEE, standard non-cross validated error; f: S, steric contribution; g: E, electrostatic contribution. h: w = weight; i: d (Å) = distance between grid points; the best statistical model is highlighted in bold.