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NumPy: Count the lowest index of "P" in a given array, element-wise

NumPy String: Exercise-16 with Solution

Write a NumPy program to count the lowest index of "P" in a given array, element-wise.

Sample Solution:-

Python Code:

import numpy as np
x1 = np.array(['Python', 'PHP', 'JS', 'EXAMPLES', 'HTML'], dtype=np.str)
print("\nOriginal Array:")
print(x1)
print("count the lowest index of ‘P’:")
r = np.char.find(x1, "P")
print(r)

Sample Input:

(['Python', 'PHP', 'JS', 'EXAMPLES', 'HTML'], dtype=np.str)

Sample Output:

Original Array:
['Python' 'PHP' 'JS' 'EXAMPLES' 'HTML']
count the lowest index of ‘P’:
[ 0  0 -1  4 -1]

Pictorial Presentation:

NumPy String: Count the lowest index of

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