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嗨,我想结合火车/测试拆分与交叉验证,并在auc中得到结果。如何使用scikit得到结果auc
我的第一个方法是我得到它,但具有准确性。
# split data into train+validation set and test set
X_trainval, X_test, y_trainval, y_test = train_test_split(dataset.data, dataset.target)
# split train+validation set into training and validation sets
X_train, X_valid, y_train, y_valid = train_test_split(X_trainval, y_trainval)
# train on classifier
clf.fit(X_train, y_train)
# evaluate the classifier on the test set
score = svm.score(X_valid, y_valid)
# combined training & validation set and evaluate it on the test set
clf.fit(X_trainval, y_trainval)
test_score = svm.score(X_test, y_test)
而我不知道如何应用roc_auc,请帮助。
您的数据中有多少类? – ginge
嗨ginge,我有两个班0-1 – xav