将列表转换为数据框（熊猫）

Question

有什么办法可以将这种类型的输出转换为 Dataframe 吗？ 输出：

[['A', 'B'], ['Orange', 'Apple']]
[['C', 'D'], ['Coconut', 'Lemon']]
[['E'], ['Mango', 'Strawberry']]

I want to turn the output into a dataframe like this:

`     x1         X2
0   A,B   Orange, Apple
1   C,D   Coconut, Lemon
2   E     Mango, Strawberry`

Answer 1

只需将此数据添加到列表中

import pandas as pd

data = [[['A', 'B'], ['Orange', 'Apple']],
        [['C', 'D'], ['Coconut', 'Lemon']],
        [['E'], ['Mango', 'Strawberry']]]

df = pd.DataFrame(data, columns=['x1', 'x2'])

所以 df 看起来像

       x1                   x2
0  [A, B]      [Orange, Apple]
1  [C, D]     [Coconut, Lemon]
2     [E]  [Mango, Strawberry]

Answer 2

如果您的起始数据在列表中，并且您想用逗号连接每个列表，这应该有效：

l = [[['A', 'B'], ['Orange', 'Apple']],
    [['C', 'D'], ['Coconut', 'Lemon']],
    [['E'], ['Mango', 'Strawberry']]]

df = pd.DataFrame([[', '.join(v) for v in i] for i in l],columns = ['x1','x2'])

stack()和str.join()也是一个选项：

df = pd.DataFrame(l,columns = ['x1','x2']).stack().str.join(', ').unstack()

输出：

     x1                 x2
0  A, B      Orange, Apple
1  C, D     Coconut, Lemon
2     E  Mango, Strawberry

Answer 3

简单修复：

pd.DataFrame(
    {"x1":[["A", "B"], ["C", "D"], ["E"]],
    "x2":[["Orange", "Apple"], ["Coconut", "Lemon"], ["Mango", "Strawberry"]]}
)