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. 2010 Dec 2;79(1):31–57. doi: 10.3797/scipharm.1011-02

Tab. 6.

Results of validation based on randomization.

Process randomization

Models with topological, structural and thermodynamic descriptors

Model No. Statistical tool R2 R Rr Rr2 cRp2

A1 GFA-linear 0.889 0.943 0.531 0.282 0.735
A2 GFA-spline 0.919 0.959 0.533 0.284 0.764
A3 G/PLS-linear 0.856 0.925 0.669 0.448 0.591
A4 G/PLS-spline 0.906 0.952 0.808 0.653 0.479

Models with spatial, electronic and thermodynamic descriptors

Model No. Statistical tool R2 R Rr Rr2 cRp2

B1 GFA-linear 0.824 0.908 0.467 0.218 0.707
B2 G/PLS-linear 0.839 0.916 0.671 0.450 0.571
B3 G/PLS-spline 0.865 0.930 0.778 0.605 0.474

Models with combined set of descriptors

Model No. Statistical tool R2 R Rr Rr2 cRp2

C1 GFA-linear 0.935 0.967 0.646 0.417 0.696
C2 GFA-spline 0.925 0.962 0.715 0.511 0.619
C3 G/PLS-linear 0.883 0.940 0.686 0.471 0.603
C4 G/PLS-spline 0.919 0.959 0.795 0.632 0.514

Model randomization

Model No. R2 R Rr Rr2 cRp2

A2 0.919 0.959 0.379 0.144 0.844
A3 0.856 0.925 0.058 0.003 0.854
A4 0.906 0.952 0.12 0.014 0.899
C1 0.935 0.967 0.368 0.135 0.865
C2 0.925 0.962 0.377 0.142 0.851
C4 0.919 0.959 0.113 0.013 0.913