こんな感じで新しい説明変数を作れます
意外と精度上がります
new_column = "hour_age"
meta_df[new_column] = meta_df["hour"].astype(str).str.cat(meta_df["age"].astype(str), sep = '_')
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データ分析コンペ初心者が簡単に説明変数を増やす方法
Last updated at Posted at 2021-03-09
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