Python | Numpy MaskedArray.__radd__

Python | Numpy MaskedArray.rsub

Last Updated : 27 Mar, 2019

numpy.ma.MaskedArray class is a subclass of ndarray designed to manipulate numerical arrays with missing data. With the help of Numpy MaskedArray.__rsub__ we can subtract a particular value that is provided as a parameter in the MaskedArray.__rsub__() method. Value will be subtracted from each and every element in a numpy array.

Syntax: numpy.MaskedArray.__rsub__

Return: Subtract self from other, and return a new masked array.

Example #1 :
In this example we can see that each and every element in an array is subtracted with the value given as a parameter in method MaskedArray.__rsub__(). Remember one thing it wouldn’t work for double type values.

# import the important module in python  
import numpy as np  
  
# make an array with numpy  
gfg = np.ma.array([11, 22, 23, 24, 25])  
  
# applying MaskedArray.__rsub__() method  
print(gfg.__rsub__(5))  

Output:

[ -6 -17 -18 -19 -20]

Example #2:

# import the important module in python  
import numpy as np  
  
# make an array with numpy  
gfg = np.ma.array([[21, 22, 23, 24, 25],  
                [26, 25, 24, 23, 22]])  
  
# applying MaskedArray.__rsub__() method  
print(gfg.__rsub__(5))  

Output:

[[-16 -17 -18 -19 -20]
 [-21 -20 -19 -18 -17]]

Python | Numpy MaskedArray.__radd__

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