public class Specificity extends java.lang.Object implements ClassificationMeasure
SPC = TN / N = TN / (FP + TN) = 1 - FPR
Sensitivity and specificity are closely related to the concepts of type I and type II errors. For any test, there is usually a trade-off between the measures. This trade-off can be represented graphically using an ROC curve.
In this implementation, the class label 1 is regarded as positive and all others are regarded as negative.
|Constructor and Description|
|Modifier and Type||Method and Description|
Returns an index to measure the quality of classification.
public double measure(int truth, int prediction)
public java.lang.String toString()