Q:

Write a NumPy program to test whether a given 2D array has null columns or not

hamza
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2022-05-18
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Write a NumPy program to test whether a given 2D array has null columns or not.

Python programming,
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hamza
2022-05-18
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import numpy as np
print("Original array:")
nums = np.random.randint(0,3,(4,10))
print(nums)
print("\nTest whether the said array has null columns or not:")
print((~nums.any(axis=0)).any())

Sample Output:

Original array:
[[1 2 1 1 1 2 1 1 2 0]
 [1 1 0 0 0 0 2 1 2 0]
 [0 0 2 1 0 2 2 2 2 2]
 [1 1 1 2 0 0 0 0 1 2]]

Test whether the said array has null columns or not:
False

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