分类衡量指标手动实现

from sklearn import metrics
  • Confusion Matrix - Shows details of classification inclusing TP,FP,TN,FN
    • True Positive (TP), Actual class is 1 & prediction is also 1
    • True Negative (TN), Actual class is 0 & prediction is also 0
    • False Positive (FP), Acutal class is 0 & prediction is 1
    • False Negative (FN), Actual class is 1 & prediction is 0
confusion_result=metrics.confusion_matrix(y_pred=pred, y_true=testY, labels=[0,1])

tp=confusion_result[1][1]
tn=confusion_result[0][0]
fp=confusion_result[0][1]
fn=confusion_result[1][0]
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转载自blog.csdn.net/sinat_23971513/article/details/105267761