Pandas 当索引和列都是多索引时重置索引

Pandas 当索引和列都是多索引时重置索引,pandas,multi-index,Pandas,Multi Index,我有一个在行和列中都有多个索引的df,我想在索引和列上重置_索引,以便所有多个索引都是新的列。下面是我所拥有和想要的一个例子 我所拥有的: indexAarrays = [['bar', 'bar', 'baz', 'baz', ], ['one', 'two', 'one', 'two']] indexTuples = list(zip(*indexAarrays)) index = pd.MultiIndex.from_tuples(indexTuples, names

我有一个在行和列中都有多个索引的df,我想在索引和列上重置_索引,以便所有多个索引都是新的列。下面是我所拥有和想要的一个例子

我所拥有的:

indexAarrays = [['bar', 'bar', 'baz', 'baz', ],
          ['one', 'two', 'one', 'two']]
indexTuples = list(zip(*indexAarrays))
index =  pd.MultiIndex.from_tuples(indexTuples, names=['firstIndex', 'secondIndex'])

colAarrays = [['c1', 'c1', 'c2', 'c2', ],
          ['d1', 'd2', 'd1', 'd2']]
colTuples = list(zip(*colAarrays ))
col =  pd.MultiIndex.from_tuples(colTuples, names=['firstCol', 'secondCol'])

df = pd.DataFrame(data=np.random.random_sample((len(index), len(col))), 
                  index=index, columns=col)
df
wantedCols = [idxName for idxName in index.names] \
                        + [colName for colName in col.names]\
                        + ['Value']
dfWanted = pd.DataFrame(index = range(int(df.shape[0]*df.shape[1]/(len(wantedCols)-1))),
                        columns=wantedCols)

idxCounter = 0
for idx1 in df.index.get_level_values(0).unique():
    for idx2 in df.index.get_level_values(1).unique():
        for c1 in df.columns.get_level_values(0).unique():
            for c2 in df.columns.get_level_values(1).unique():
                dfWanted.loc[idxCounter, 'firstIndex'] = idx1
                dfWanted.loc[idxCounter, 'secondIndex'] = idx2
                dfWanted.loc[idxCounter, 'firstCol'] = c1
                dfWanted.loc[idxCounter, 'secondCol'] = c2
                dfWanted.loc[idxCounter, 'Value'] = df.loc[(idx1, idx2), (c1, c2)]
                idxCounter += 1

dfWanted     
以上给出了我拥有的DF:

firstCol                      c1                  c2          
secondCol                     d1        d2        d1        d2
firstIndex secondIndex                                        
bar        one          0.231221  0.846196  0.037493  0.516474
           two          0.810847  0.204095  0.423766  0.513262
baz        one          0.433040  0.118018  0.267039  0.356261
           two          0.529042  0.181886  0.093488  0.643357
我想要什么:

indexAarrays = [['bar', 'bar', 'baz', 'baz', ],
          ['one', 'two', 'one', 'two']]
indexTuples = list(zip(*indexAarrays))
index =  pd.MultiIndex.from_tuples(indexTuples, names=['firstIndex', 'secondIndex'])

colAarrays = [['c1', 'c1', 'c2', 'c2', ],
          ['d1', 'd2', 'd1', 'd2']]
colTuples = list(zip(*colAarrays ))
col =  pd.MultiIndex.from_tuples(colTuples, names=['firstCol', 'secondCol'])

df = pd.DataFrame(data=np.random.random_sample((len(index), len(col))), 
                  index=index, columns=col)
df
wantedCols = [idxName for idxName in index.names] \
                        + [colName for colName in col.names]\
                        + ['Value']
dfWanted = pd.DataFrame(index = range(int(df.shape[0]*df.shape[1]/(len(wantedCols)-1))),
                        columns=wantedCols)

idxCounter = 0
for idx1 in df.index.get_level_values(0).unique():
    for idx2 in df.index.get_level_values(1).unique():
        for c1 in df.columns.get_level_values(0).unique():
            for c2 in df.columns.get_level_values(1).unique():
                dfWanted.loc[idxCounter, 'firstIndex'] = idx1
                dfWanted.loc[idxCounter, 'secondIndex'] = idx2
                dfWanted.loc[idxCounter, 'firstCol'] = c1
                dfWanted.loc[idxCounter, 'secondCol'] = c2
                dfWanted.loc[idxCounter, 'Value'] = df.loc[(idx1, idx2), (c1, c2)]
                idxCounter += 1

dfWanted     
上面给出了我想要的DF:

firstIndex secondIndex firstCol secondCol      Value
0         bar         one       c1        d1   0.231221
1         bar         one       c1        d2   0.846196
2         bar         one       c2        d1   0.037493
3         bar         one       c2        d2   0.516474
4         bar         two       c1        d1   0.810847
5         bar         two       c1        d2   0.204095
6         bar         two       c2        d1   0.423766
7         bar         two       c2        d2   0.513262
8         baz         one       c1        d1    0.43304
9         baz         one       c1        d2   0.118018
10        baz         one       c2        d1   0.267039
11        baz         one       c2        d2   0.356261
12        baz         two       c1        d1   0.529042
13        baz         two       c1        d2   0.181886
14        baz         two       c2        d1  0.0934878
15        baz         two       c2        d2   0.643357    
有人知道比我上面使用的方法更容易重置索引吗?

两个级别都使用,然后通过以下方式将多索引系列转换为列: