SVM_RBF = SVC(C=100, cache_size=200, class_weight=None, coef0=0.0, decision_function_shape='ovr', degree=3, gamma=0.1, kernel='rbf', max_iter=-1, probability=True,
random_state=None, shrinking=True,tol=0.001, verbose=False)
SVM_RBF.fit(df_train.loc[:, df_train.columns != 'Exited'],df_train.Exited)
NameError:名称“df_train”未定义
df_train
可能尚未定义,即变量在您尝试使用它时不存在。无法从片段中分辨出来,但请确保在尝试使用它之前定义df_train