Knn-Python网格化搜索超参数及数据归一化处理

# 将数据分为测试集和训练集 from sklearn.model_selection import train_test_split X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=666) from sklearn.neighbors import KNeighbors

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