関連ワード:  pandas stack two dataframes with different column names    pandas merge two dataframes with different column names    python pandas merge two dataframes with different column names    pandas append two dataframes with different column names    combine two dataframes pandas with different column names    pandas merge multiple dataframes with different column names    python pandas append two dataframes with different column names    pandas merge two dataframes with same column names    pandas merge two dataframes with same column names rename    merge two dataframe with different column names  
結果 : pandas stack two dataframes with different column names