pipeline、featureunion、ColumnTransformer區別與結合

連接: https://www.imooc.com/article/35451. 連接: http://www.minxueyu.com/2020/03/14/pipeline%E3%80%81featureunion%E3%80%81ColumnTransformer%E5%8C%BA%E5%88%AB%E4%B8%8E%E7%BB%93%E5%90%88/.web

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