Python | Numpy MaskedArray.__rsub__
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 )) |
[ -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 )) |
[[-16 -17 -18 -19 -20] [-21 -20 -19 -18 -17]]