Python Pandas Panel.rsub()用法及代碼示例

在 Pandas 中，Panel是一個非常重要的三維數據容器。 3個軸的名稱旨在為描述涉及麵板數據的操作，尤其是麵板數據的計量分析提供一些語義上的含義。

在 Pandas Panel.rsub()函數用於減去係列和 DataFrame /麵板。

用法： Panel.rsub(other, axis=0)

參數：
other: DataFrame 或麵板
axis:廣播軸

返回：麵板

代碼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))

輸出：

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

代碼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))

輸出：

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

代碼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))

輸出：

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

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注：本文由純淨天空篩選整理自Shivam_k大神的英文原創作品 Python | Pandas Panel.rsub()。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。