如何解决此错误NameError。尝试在线运行各种解决方案。有什么补救办法吗？

Question

在尝试对这个数据集使用不同的分类器时，我一直遇到此错误。我已经尝试了所有在线解决方案

from sklearn.model_selection import train_test_split, StratifiedKFold, cross_validate
from sklearn.metrics import confusion_matrix, accuracy_score, precision_score, recall_score, f1_score, roc_auc_score, make_scorer
clf = clf1
print(clf)
clf.fit(X_train, y_train)
print('Confusion Matrix:\n', confusion_matrix(y_test, clf.predict(X_test)))

here is a picture of my code