Counting the matching value to count the occurrence of an item

Count the occurrence of a certain item in an array using sum()

Count the occurrence of a certain item in an array using the tolist()

Here we are using the concept of matching the value present in the array and finding the occurrence of that element in the array.

Python3

import numpy as np
 
a = np.array([2, 3, 4, 5, 3, 3,
              5, 4, 7, 8, 3])
 
# Count '3' in numpy array
c = a[a == 3].shape[0]
 
print('Occurrences of "3" in array is: ', c)

Output:

Occurrences of "3" in array is: 4

Count the occurrence of a certain item in an ndarray – Numpy

In this article, the task is to find out how to count the occurrence of a certain item in an nd-Array in Python.

Example

Array = [[ 0  1  2  3]
        [ 4  5  2  7]  
        [ 8  2 10 11]]
        
Input: element = 2

Output: 3 times

Tags:

#Python #Python Programs #python

Count the occurrence of a certain item in an array using sum()

Count the occurrence of a certain item in an array using the tolist()

Counting the matching value to count the occurrence of an item

Python3

Count the occurrence of a certain item in an ndarray – Numpy

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