Table 4: Optimized regression model for prediction of narcotic activity of diverse organic compoundsa.

tmin

Excluded variable

r

F

RMS

-0.04

Sz

0.9601

136.280

0.1057

0.34

1χ(=B)

0.9600

154.601

0.1048

-0.52

J

0.9599

177.854

0.1041

-0.95

logRB

0.9596

207.512

0.1040

0.56

W

0.9595

250.518

0.1034

aBasic regression model including all the ten descriptors (n = 114, r = 0.9601, F = 121.476, RMS = 0.1068).