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Table 3 2X2 prediction matrix for Ames mutagenicity classification

From: An assessment of mutagenicity of chemical substances by (quantitative) structure–activity relationship

  Experimental Ames mutagenicity class
Positive Negative
QSAR prediction class Positive True Positive (TP) False Positive (FP)
Negative False Negative (FN) True Negative (TN)
Unpredictable (OODa)
  1. aOut of Domain