count occurrence in list python code example
Example 1: How to see how many times somting is in a list python
vowels = ['a', 'e', 'i', 'o', 'i', 'u']
count = vowels.count('i')
Example 2: python find number of occurrences in list
student_grades = [9.1, 8.8, 10.0, 7.7, 6.8, 8.0, 10.0, 8.1, 10.0, 9.9]
samebnumber = student_grades.count(10.0)
print(samebnumber)
Example 3: count occurrence in array python
arr = np.array( [1, 2, 3, 2, 1, 2])
occ = np.count_nonzero(arr==0)
print(occ)
0
occ = np.count_nonzero(arr==1)
print(occ)
2
Example 4: python count occurrences of an item in a list
>>> [1, 2, 3, 4, 1, 4, 1].count(1)
3
Example 5: count values in list usiing counter
from collections import Counter