Ayden Zeng
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Ayden Zeng
Day2 中的 ```python from sklearn.model_selection import train_test_split X_train, X_test, Y_train, Y_test = train_test_split( X, Y, test_size = 1/4, random_state = 0) ``` ,我这里拿到的测试集 X_test,Y_test都为空。导致接下来的预测结果出错