train_test_split函数

train_test_split是sklearn的库函数,用于将数据集随机划分为训练子集和测试子集,并返回划分好的样本和标签,在模型训练中很好用。格式:html X_train,X_test, y_train, y_test =cross_validation.train_test_split(train_data,train_target,test_size=0.2, random_state=
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