python get count of each element in list code example
Example 1: python count repeated elements in a list
# Basic syntax:
dict_of_counts = {item:your_list.count(item) for item in your_list}
# Example usage:
your_list = ["a", "b", "a", "c", "c", "a", "c"]
dict_of_counts = {item:your_list.count(item) for item in your_list}
print(dict_of_counts)
--> {'a': 3, 'b': 1, 'c': 3}
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: how to find the number of times a number appears in python
dict((i, a.count(i)) for i in a)
Example 4: 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 5: count number of repeats in list python
mylist.count(element)
Example 6: 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