Q:

Write a NumPy program to create an array of 4,5 shape and swap column1 with column4

hamza
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2022-05-18
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Write a NumPy program to create an array of 4,5 shape and swap column1 with column4.

Python programming,
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hamza
2022-05-18
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import numpy as np
array_nums = np.arange(20).reshape(4,5)
print("Original array:")
print(array_nums)
print("\nAfter swapping column1 with column4:")
array_nums[:,[0,3]] = array_nums[:,[3,0]]
print(array_nums)

Sample Output:

Original array:
[[ 0  1  2  3  4]
 [ 5  6  7  8  9]
 [10 11 12 13 14]
 [15 16 17 18 19]]

After swapping column1 with column4:
[[ 3  1  2  0  4]
 [ 8  6  7  5  9]
 [13 11 12 10 14]
 [18 16 17 15 19]]

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