関連ワード:  join two dataframes pandas vertically    concatenate two dataframes pandas vertically    append two dataframes pandas vertically    merge two dataframes pandas vertically    join two dataframes pandas horizontally    concatenate two dataframes pandas horizontally    append two dataframes pandas horizontally    merge two dataframes horizontally pandas    join two dataframes pandas with different column names    pandas join two dataframes example  
結果 : join two dataframes pandas vertically