Numpy size() function | Python

In Python, numpy.size() function count the number of elements along a given axis.

Synatx: numpy.size(arr, axis=None)

Parameters:
arr: [array_like] Input data.
axis: [int, optional] Axis along which the elements are counted. By default, give the total number of elements.



Returns: [int] Return the number of elements along a given axis.

Code #1 :

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# Python program explaining
# numpy.size() method 
  
# importing numpy 
import numpy as np
  
# Making a random array 
arr = np.array([[1, 2, 3, 4], [5, 6, 7, 8]])
  
# By default, give the total number of elements.
print(np.size(arr))

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Output:

8

 
Code #2 :

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# Python program explaining
# numpy.size() method 
  
# importing numpy 
import numpy as np
  
# Making a random array 
arr = np.array([[1, 2, 3, 4], [5, 6, 7, 8]])
  
# count the number of elements along the axis.
print(np.size(arr, 0))
print(np.size(arr, 1))

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Output:

2
4
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