count number of occurrences in array python code example
Example 1: how to find no of times a elements in list python
thislist = (1, 3, 7, 8, 7, 5, 4, 6, 8, 5)
x = thislist.count(5)
print(x)
Example 2: How to see how many times somting is in a list python
vowels = ['a', 'e', 'i', 'o', 'i', 'u']
count = vowels.count('i')
Example 3: count occurrences of value in array python
>>> l = ["a","b","b"]
>>> l.count("a")
Example 4: 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 5: python count occurrences of an item in a list
>>> [1, 2, 3, 4, 1, 4, 1].count(1)
3