Sklearn roc curve

import sklearn.metrics as metrics
# calculate the fpr and tpr for all thresholds of the classification
probs = model.predict_proba(X_test)
preds = probs[:,1]
fpr, tpr, threshold = metrics.roc_curve(y_test, preds)
roc_auc = metrics.auc(fpr, tpr)

# method I: plt
import matplotlib.pyplot as plt
plt.title('Receiver Operating Characteristic')
plt.plot(fpr, tpr, 'b', label = 'AUC = %0.2f' % roc_auc)
plt.legend(loc = 'lower right')
plt.plot([0, 1], [0, 1],'r--')
plt.xlim([0, 1])
plt.ylim([0, 1])
plt.ylabel('True Positive Rate')
plt.xlabel('False Positive Rate')
plt.show()

# method II: ggplot
from ggplot import *
df = pd.DataFrame(dict(fpr = fpr, tpr = tpr))
ggplot(df, aes(x = 'fpr', y = 'tpr')) + geom_line() + geom_abline(linetype = 'dashed')

Source: stackoverflow.com

Scikit learn roc curve

   fpr,tpr = sklearn.metrics.roc_curve(y_true, y_score, average='macro', sample_weight=None)

Source: stackoverflow.com

Scikit learn roc curve

auc = sklearn.metric.auc(fpr, tpr)

Source: stackoverflow.com

Similar codes

0 vote134 views1 answer
Example of django template for forms
Python
0 vote133 views1 answer
Python code to demonstrate inheritance with animal class
Python
1 vote169 views1 answer
Django get id of newly created object
Python Django
114 votes143 views5 answers
Change name of column pandas
Python
0 vote140 views1 answer
Overriding update in serializer django
Python
0 vote140 views1 answer
Python file write all the bounding box coordinates using OpenCV
Python
0 vote126 views1 answer
Python emoji convert
Python
0 vote146 views1 answer
What is tf.repeat()
Python
17 votes148 views6 answers
Install flask
Python
0 vote143 views1 answer
Twitter api ("Connection broken: Invalid Chunk Length(got length b'', 0 bytes read)"
Python