将Pandas DataFrame列转换为行

Question

我有以下dict，我转换为dataframe

CREATE INDEX ON :Writer(id);

CREATE INDEX ON :Songs(SongId);

结果输出

但是我希望用以下行

来映射列

players_info = {'Afghanistan': {'Asghar Stanikzai': 809.0,
  'Mohammad Nabi': 851.0,
  'Mohammad Shahzad': 1713.0,
  'Najibullah Zadran': 643.0,
  'Samiullah Shenwari': 774.0},
 'Australia': {'AJ Finch': 1082.0,
  'CL White': 988.0,
  'DA Warner': 1691.0,
  'GJ Maxwell': 822.0,
  'SR Watson': 1465.0},
 'England': {'AD Hales': 1340.0,
  'EJG Morgan': 1577.0,
  'JC Buttler': 985.0,
  'KP Pietersen': 1176.0,
  'LJ Wright': 759.0}}

pd.DataFrame(players_info)

我尝试了Player Team Score Mohammad Nabi Afghanistan 851.0 Mohammad Shahzad Afghanistan 1713.0 Najibullah Zadran Afghanistan 643.0 JC Buttler England 985.0 KP Pietersen England 1176.0 LJ Wright England 759.0 ，但它没有按照我的意愿行事。我怎么能这样做？

Answer 1

你需要：

df = df.stack().reset_index()
df.columns=['Player', 'Team', 'Score']

df.head(5)的输出：

      Player    Team    Score
0   AD Hales    Score   1340.0
1   AJ Finch    Team    1082.0
2   Asghar Stanikzai    Player  809.0
3   CL White    Team    988.0
4   DA Warner   Team    1691.0

Answer 2

让我们使用tASSOC对此进行抨击。应该很快。

melt