количество вхождений всех элементов в списке Python
import collections
a_list = ["a", "b", "a"]
occurrences = collections.Counter(a_list)
print(occurrences)
Important Ibex
import collections
a_list = ["a", "b", "a"]
occurrences = collections.Counter(a_list)
print(occurrences)thislist = (1, 3, 7, 8, 7, 5, 4, 6, 8, 5)
x = thislist.count(5)
print(x)dict((i, a.count(i)) for i in a)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)#Count the frequency of elements in a list using dictionary
l=eva1.l(input("Enter the list"))
d={}
print(l)
for i in l:
if i not in d:
d[i]=l.count(i)
else:
pass
print("Frequency of element:")
for i in d:
print(i,"-",d[i])
output:
Enter the list[1,5,8,7,5,6,3,2,4,7,5,1,]
[1, 5, 8, 7, 5, 6, 3, 2, 4, 7, 5, 1]
Frequency of element:
1 - 2
5 - 3
8 - 1
7 - 2
6 - 1
3 - 1
2 - 1
4 - 1