P = <br><br>TruePositive <br><br>TruePositive +假阳性<br><br><br><br>P = TruePositiveTruePositive +假阳性<br><br>(3)<br><br>R = <br><br>TruePositive <br><br>TruePositive + FalseNegative <br><br><br><br>R = TruePositiveTruePositive + FalseNegative <br><br>(4)
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