/Python/True positive true negative manually

True positive true negative manually

# True Positive (TP): we predict a label of 1 (positive), and the true label is 1.
TP = np.sum(np.logical_and(pred_labels == 1, true_labels == 1))
 
# True Negative (TN): we predict a label of 0 (negative), and the true label is 0.
TN = np.sum(np.logical_and(pred_labels == 0, true_labels == 0))
 
# False Positive (FP): we predict a label of 1 (positive), but the true label is 0.
FP = np.sum(np.logical_and(pred_labels == 1, true_labels == 0))
 
# False Negative (FN): we predict a label of 0 (negative), but the true label is 1.
FN = np.sum(np.logical_and(pred_labels == 0, true_labels == 1))
 
print 'TP: %i, FP: %i, TN: %i, FN: %i' % (TP,FP,TN,FN)

Source: kawahara.ca

Similar codes

0 vote185 views1 answer
How to catch stop itteration in generator as None
Python
5 votes99 views2 answers
Python range backwards
Python
0 vote213 views2 answers
Django models get all
Python Django
1 vote149 views1 answer
Python send object reference to another function and edit property
Python
0 vote138 views1 answer
Distribute a local Python collection to form an RDD
Python
1 vote95 views2 answers
Python if boolean
Python
1 vote175 views2 answers
Runserver coomand in django
Python Django
22 votes137 views3 answers
How to call a random function in python
Python
0 vote156 views1 answer
Ram clear in python
Python
0 vote173 views1 answer
Python collections to dictionary
Python