将列表转换为Pandas Dataframe列

时间:2017-02-05 06:19:02

标签: python list pandas dataframe

我需要将我的列表转换为一列pandas dataframe

当前列表(len = 3):

['Thanks You',
 'Its fine no problem',
 'Are you sure']

必需的Pandas DF(shape = 3,):

0 Thank You
1 Its fine no problem
2 Are you sure

请注意,这些数字代表上面所需的Pandas DF中的索引。

5 个答案:

答案 0 :(得分:100)

使用:

L = ['Thanks You', 'Its fine no problem', 'Are you sure']

#create new df 
df = pd.DataFrame({'col':L})
print (df)

                   col
0           Thanks You
1  Its fine no problem
2         Are you sure
df = pd.DataFrame({'oldcol':[1,2,3]})

#add column to existing df 
df['col'] = L
print (df)
   oldcol                  col
0       1           Thanks You
1       2  Its fine no problem
2       3         Are you sure

谢谢DYZ

#default column name 0
df = pd.DataFrame(L)
print (df)
                     0
0           Thanks You
1  Its fine no problem
2         Are you sure

答案 1 :(得分:4)

如果您的列表如下所示:[1,2,3],您可以这样做:

lst = [1,2,3]
df = pd.DataFrame([lst])
df.columns =['col1','col2','col3']
df

得到这个:

    col1    col2    col3
0   1       2       3

或者,您可以按如下方式创建列:

import numpy as np
df = pd.DataFrame(np.array([lst]).T)
df.columns =['col1']
df

得到这个:

  col1
0   1
1   2
2   3

答案 2 :(得分:3)

您可以直接致电

pd.DataFrame()

方法并将您的列表作为参数传递。

l = ['Thanks You','Its fine no problem','Are you sure']
pd.DataFrame(l)

输出:

                      0
0            Thanks You
1   Its fine no problem
2          Are you sure

如果您有多个列表,并且想要从中创建一个数据框,则可以按照以下步骤进行操作:

import pandas as pd
names =["A","B","C","D"]
salary =[50000,90000,41000,62000]
age = [24,24,23,25]
data = pd.DataFrame([names,salary,age]) #Each list would be added as a row
data = data.transpose() #To Transpose and make each rows as columns
data.columns=['Names','Salary','Age'] #Rename the columns
data.head()

输出:

    Names   Salary  Age
0       A    50000   24
1       B    90000   24
2       C    41000   23
3       D    62000   25

答案 3 :(得分:2)

示例:

['Thanks You',
 'Its fine no problem',
 'Are you sure']

代码块:

import pandas as pd
df = pd.DataFrame(lst)

输出:

    0
0   Thanks You
1   Its fine no problem
2   Are you sure

不建议删除熊猫数据框的列名。但是如果您仍然希望数据框架不包含标题(按照问题中发布的格式),则可以执行以下操作:

df = pd.DataFrame(lst)    
df.columns = ['']

输出将如下所示:

0   Thanks You
1   Its fine no problem
2   Are you sure

df = pd.DataFrame(lst).to_string(header=False)

但是输出将是列表而不是数据框:

0           Thanks You
1  Its fine no problem
2         Are you sure

希望这会有所帮助!

答案 4 :(得分:0)

要将列表转换为Pandas Core数据框架,我们需要使用 pandas 软件包中的 DataFrame 方法。

执行上述操作的方法有多种。

将熊猫作为pd导入

  1. pd.DataFrame({'Column_Name':Column_Data})
  • 列名:字符串
  • Column_Data :列表表单
  1. 数据= pd.DataFrame(列数据)

    Data.columns = ['Column_Name']

因此,对于上述问题,代码段为

import pandas as pd

Content = ['Thanks You',
           'Its fine no problem',
           'Are you sure']

Data = pd.DataFrame({'Text': Content})