関連ワード:  python dataframe append two dataframes    python dataframe join two dataframes    python dataframe merge two dataframes    python dataframe concat two dataframes    python pandas append two dataframes    python dataframe join two dataframes based on column    python pandas append two dataframes with different column names    python dataframe merge two dataframes on index    python pandas join two dataframes    python pandas combine two dataframes  
結果 : python dataframe append two dataframes