how to get frequency of each elements in a python list
# easiest way to count the frequency of all elements in a list
lst = ['Sam', 'Sam', 'Tim', 'Tim', 'Tim', 'r', 'l']
freq = {} # stores the frequency of elements
counting = [freq.update({x: lst.count(x)}) for x in lst]
# output of freq
{'Sam': 2, 'Tim': 3, 'r': 1, 'l': 1}
#credit: buggyprogrammer.com
#Note: if you print "counting" it will return a list full of None so ignore it.list count frequency python
import collections
a = [1,1,1,1,2,2,2,2,3,3,4,5,5]
counter=collections.Counter(a)
print(counter)
# Counter({1: 4, 2: 4, 3: 2, 5: 2, 4: 1})
print(counter.values())
# [4, 4, 2, 1, 2]
print(counter.keys())
# [1, 2, 3, 4, 5]
print(counter.most_common(3))
# [(1, 4), (2, 4), (3, 2)]Copyright © 2021 Codeinu
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