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Table 6 The performance of position combination features by KNN classifier

From: Prediction of acid radical ion binding residues by K-nearest neighbors classifier

LigandOptimal k valueSn (%)Sp (%)Acc (%)FPR (%)MCC
NO27581.661.271.438.80.438
CO32−3175.667.771.732.30.435
SO42−3373.571.272.328.80.447
PO43−1576.075.475.724.60.514