NumPy: Test comparison operators

NumPy String: Exercise-14 with Solution

Write a NumPy program to test equal, not equal, greater equal, greater and less test of all the elements of two given arrays.

Sample Solution:-

Python Code:

import numpy as np
x1 = np.array(['Hello', 'PHP', 'JS', 'examples', 'html'], dtype=np.str)
x2 = np.array(['Hello', 'php', 'Java', 'examples', 'html'], dtype=np.str)
print("\nEqual test:")
r = np.char.equal(x1, x2)
print("\nNot equal test:")
r = np.char.not_equal(x1, x2)
print("\nLess equal test:")
r = np.char.less_equal(x1, x2)
print("\nGreater equal test:")
r = np.char.greater_equal(x1, x2)
print("\nLess test:")
r = np.char.less(x1, x2)

Sample Input:

['Hello' 'PHP' 'JS' 'examples' 'html']

['Hello' 'php' 'Java' 'examples' 'html']

Sample Output:

['Hello' 'PHP' 'JS' 'examples' 'html']
['Hello' 'php' 'Java' 'examples' 'html']

Equal test:
[ True False False  True  True]

Not equal test:
[False  True  True False False]

Less equal test:
[ True  True  True  True  True]

Greater equal test:
[ True False False  True  True]

Less test:
[False  True  True False False]

Pictorial Presentation:

NumPy String: Test comparison operators

Python-Numpy Code Editor:

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Python: Tips of the Day

Debug With the Print() Function:

>>> for i in range(5):
...     print(i, end=', ' if i < 4 else '\n')
0, 1, 2, 3, 4
>>> for i in range(5):
...     print(f'{i} & {i*i}', end=', ' if i < 4 else '\n')
0 & 0, 1 & 1, 2 & 4, 3 & 9, 4 & 16