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Table 1 The minimum recommended value for QSAR models

From: Theoretical investigation and design of some indole derivatives as potent β-glucuronidase inhibitors

Symbol Name Value
R2 Co-efficient of determination ≥ 0.60
P(95%) Confidence interval at 95% confidence level < 0.05
Q2 Cross-validation coefficient ≥ 0.50
R2 − Q2 Difference between R2 and Q2 ≤ 0.30
N(test set) Minimum number of test set ≥05
R2ext. Co-efficient of determination of external and test set ≥ 0.50