get true negatives from confusion matrix

Spotless Sloth answered on January 8, 2021 Popularity 10/10 Helpfulness 2/10

answer get true negatives from confusion matrix

related python confusion matrix false positive true positive

get true negatives from confusion matrix

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def perf_measure(y_actual, y_hat):
    TP = 0
    FP = 0
    TN = 0
    FN = 0

    for i in range(len(y_hat)): 
        if y_actual[i]==y_hat[i]==1:
           TP += 1
        if y_hat[i]==1 and y_actual[i]!=y_hat[i]:
           FP += 1
        if y_actual[i]==y_hat[i]==0:
           TN += 1
        if y_hat[i]==0 and y_actual[i]!=y_hat[i]:
           FN += 1

    return(TP, FP, TN, FN)

Popularity 10/10 Helpfulness 2/10 Language whatever

Source: stackoverflow.com

Tags: confusion-matrix get whatever

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Contributed on Jan 08 2021

Spotless Sloth

0 Answers Avg Quality 2/10

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python confusion matrix false positive true positive

Comment

tn, fp, fn, tp = confusion_matrix(list(y_true), list(y_pred), labels=[0, 1]).ravel()

print('True Positive', tp)
print('True Negative', tn)
print('False Positive', fp)
print('False Negative', fn)

Popularity 9/10 Helpfulness 4/10 Language python

Source: moonbooks.org

Tags: confusion-matrix conf

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Contributed on Jun 26 2022

Sabbir Ahmed

0 Answers Avg Quality 2/10

get true negatives from confusion matrix

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get true negatives from confusion matrix

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python confusion matrix false positive true positive

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