Table 3: Quantitative structure–activity relationship statistics of important equation#.

Parameters Statistical values
N Train 56
N test 24
NV 3
R 0.920
R2 0.846
Variance 0.335
Std 0.578
F 95.465
R2bt 0.852
Chance <0.001
Q2 0.818
SPRESS 0.629
SDEP 0.606
R2pred 0.821
rm2 (Loo) 0.799
rm2 (Predicated) 0.675
rm2(Overall) 0.782

#N Train= number of training set, N Test= number of test set, NV= number of variables, R= coefficient of correlation, R2= squared correlation coefficient, Std= standard deviation of estimation, F= Fischer’s value, R2bt= bootstrapping square correlation coefficient, Q2=cross-validated squared correlation coefficient, SPRESS= predictive residual sum of square, SDEP = standard error of prediction. R2 = predicted coefficient of correlation