関連ワード:  python merge two dataframes vertically    python concatenate two dataframes vertically    pandas merge two dataframes vertically    python merge two dataframes horizontally    pandas concatenate two dataframes vertically    pandas concatenate two dataframes vertically with different columns    pandas join two dataframes vertically    pandas combine two dataframes vertically    pandas concatenate two dataframes vertically with same columns    pandas concatenate two dataframes vertically with different column names  
結果 : python merge two dataframes vertically