将嵌套字典中的值拆分为pandas数据框

时间:2018-12-27 07:25:28

标签: python pandas dictionary dataframe nested

我有一个嵌套的字典,该字典返回多个列和行作为一个值。它是通过非官方的Google Trends API获取的,下面的查询返回pandas.DataFrames字典。

# Related Queries, returns a dictionary of dataframes
related_queries_dict = pytrends.related_queries()
print(related_queries_dict)

结果:

 {'jeans': {'top':                    query  value
0             mens jeans    100
1           skinny jeans     92
2            black jeans     84
3           womens jeans     62
4             blue jeans     58
5            white jeans     55
6           ripped jeans     54
7             best jeans     42
8            levis jeans     41
9                  levis     41
10           denim jeans     38
11        american eagle     37
12  american eagle jeans     36
13            levi jeans     33
14                  levi     33
15             mom jeans     30
16         jeans for men     28
17       jeans for women     28
18       hollister jeans     26
19             hollister     25
20    high waisted jeans     24
21        wrangler jeans     24
22              wrangler     23
23       plus size jeans     21
24       boyfriend jeans     20, 'rising':                              query  value
0                extreme cut jeans   6450
1            extreme cut out jeans   5800
2                 skinnygirl jeans   3000
3                      mugsy jeans    200
4                    cut out jeans    170
5                skinny girl jeans    160
6                   everlane jeans    160
7                   levi mom jeans    140
8                  judy blue jeans    120
9         not your daughters jeans    120
10                    kancan jeans    110
11                    my fit jeans    100
12              levis wedgie jeans    100
13                     amiri jeans     90
14             wrangler jeans mens     90
15                mike amiri jeans     80
16                  mom jeans band     80
17            wit and wisdom jeans     70
18               bell bottom jeans     60
19   how to get blood out of jeans     60
20              just my size jeans     60
21  how to get grease out of jeans     50
22                     ariat jeans     50
23                       ymi jeans     50
24                 mr. green jeans     50}}

我想将结果分成一个熊猫数据框,所以看起来像这样:

+--------+----------------------+-------+
| Index  |       query          | value |
+--------+----------------------+-------+
|      0 | mens jeans           |   100 |
|    1   | skinny jeans         |    92 |
|    2   | black jeans          |    84 |
|    3   | womens jeans         |    62 |
|    4   | blue jeans           |    58 |
|    5   | white jeans          |    55 |
|    6   | ripped jeans         |    54 |
|    7   | best jeans           |    42 |
|    8   | levis jeans          |    41 |
|    9   | levis                |    41 |
|    10  | denim jeans          |    38 |
|    11  | american eagle       |    37 |
|    12  | american eagle jeans |    36 |
|    13  | levi jeans           |    33 |
|    14  | levi                 |    33 |
|    15  | mom jeans            |    30 |
|    16  | jeans for men        |    28 |
|    17  | jeans for women      |    28 |
|    18  | hollister jeans      |    26 |
|    19  | hollister            |    25 |
|    20  | high waisted jeans   |    24 |
|    21  | wrangler jeans       |    24 |
|    22  | wrangler             |    23 |
|    23  | plus size jeans      |    21 |
+--------+----------------------+-------+

我已经在寻找如何将嵌套字典转换为熊猫数据框的类似答案,但是它们都不考虑分割值。

使用pd.DataFrame.from_dict将其转换为数据帧没有问题,尽管所有值都在同一行中,这给了我想要的结果:

df_new = pd.DataFrame.from_dict(related_queries_dict, orient='index')
df_new.head()

结果:

+-------+-------------------+-------------------+
|       |        top        |      rising       |
+-------+-------------------+-------------------+
| jeans | query value 0 ... | query value 0 ... |
+-------+-------------------+-------------------+

1 个答案:

答案 0 :(得分:0)

看起来“顶部”和“上升”已经是数据帧,请尝试打印呼叫以进行确认

print(type(related_queries_dict['jeans']['top']))