当前位置: 首页>>代码示例 >>用法及示例精选 >>正文


Python Pandas Panel.rsub()用法及代码示例


在 Pandas 中,Panel是一个非常重要的三维数据容器。 3个轴的名称旨在为描述涉及面板数据的操作,尤其是面板数据的计量分析提供一些语义上的含义。

在 Pandas Panel.rsub()函数用于减去系列和 DataFrame /面板。

用法: Panel.rsub(other, axis=0)

参数:
other: DataFrame 或面板
axis:广播轴

返回:面板

代码1:

# importing pandas module  
import pandas as pd  
import numpy as np  
  
df1 = pd.DataFrame({'a':['Geeks', 'For', 'geeks', 'real'],  
                    'b':[111, 123, 425, 1333]})  
  
df2 = pd.DataFrame({'a':['I', 'am', 'dataframe', 'two'],  
                    'b':[100, 100, 100, 100]})  
                      
data = {'item1':df1, 'item2':df2} 
  
# creating Panel  
panel = pd.Panel.from_dict(data, orient ='minor')  
print("panel['b'] is - \n\n", panel['b'])  
  
print("\nSubtracting panel['b'] with df2['b'] using rsub() method - \n")  
print("\n", panel['b'].rsub(df2['b'], axis = 0)) 
输出:
panel['b'] is - 

    item1  item2
0    111    100
1    123    100
2    425    100
3   1333    100

Subtracting panel['b'] with df2['b'] using rsub() method - 

    item1  item2
0    -11      0
1    -23      0
2   -325      0
3  -1233      0

代码2:

# importing pandas module  
import pandas as pd  
import numpy as np  
  
df1 = pd.DataFrame({'a':['Geeks', 'For', 'geeks', 'for', 'real'],  
                    'b':[11, 1.025, 333, 114.48, 1333]})  
  
data = {'item1':df1, 'item2':df1}  
  
# creating Panel  
panel = pd.Panel.from_dict(data, orient ='minor')  
print("panel['b'] is - \n\n", panel['b'], '\n')  
  
# Create a 5 * 5 dataframe  
df2 = pd.DataFrame(np.random.rand(5, 2), columns =['item1', 'item2'])  
print("Newly create dataframe with random values is - \n\n", df2) 
  
print("\nSubtracting panel['b'] with df2 using rsub() method - \n")  
print(panel['b'].rsub(df2, axis = 0)) 
输出:
panel['b'] is - 

       item1     item2
0    11.000    11.000
1     1.025     1.025
2   333.000   333.000
3   114.480   114.480
4  1333.000  1333.000 

Newly create dataframe with random values is - 

       item1     item2
0  0.159943  0.383040
1  0.769608  0.776670
2  0.038762  0.889516
3  0.672955  0.094725
4  0.127130  0.729699

Subtracting panel['b'] with df2 using rsub() method - 

         item1        item2
0   -10.840057   -10.616960
1    -0.255392    -0.248330
2  -332.961238  -332.110484
3  -113.807045  -114.385275
4 -1332.872870 -1332.270301

代码3:

# importing pandas module  
import pandas as pd  
import numpy as np  
  
df1 = pd.DataFrame({'a':['Geeks', 'For', 'geeks', 'for', 'real'],  
                    'b':[11, 1.025, 333, 114.48, 1333]})  
                      
df2 = pd.DataFrame({'a':['I', 'am', 'DataFrame', 'number', 'two'],  
                    'b':[10, 10, 10, 110, 110]})                      
                      
data = {'item1':df1, 'item2':df2}  
  
# creating Panel  
panel = pd.Panel.from_dict(data, orient ='minor')  
  
print("panel['b'] is - \n\n", panel['b'], '\n')  
  
print("\nSubtracting panel['b']['item1'] with df2['b'] or panel['b']['item2'] using rsub() method - \n")  
print("\n", panel['b']['item1'].rsub(df2['b'], axis = 0)) 
输出:
panel['b'] is - 

       item1  item2
0    11.000     10
1     1.025     10
2   333.000     10
3   114.480    110
4  1333.000    110 


Subtracting panel['b']['item1'] with df2['b'] or panel['b']['item2'] using rsub() method - 


 0      -1.000
1       8.975
2    -323.000
3      -4.480
4   -1223.000
dtype:float64


相关用法


注:本文由纯净天空筛选整理自Shivam_k大神的英文原创作品 Python | Pandas Panel.rsub()。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。