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find frequency of numbers in list python

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icy_milktea27 answered on December 29, 2020 Popularity 10/10 Helpfulness 4/10

answer find frequency of numbers in list python

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find frequency of numbers in list python

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from collections import Counter

def frequency_table(n):
    table = Counter(n)
    print('Number\tFrequency')
    for number in table.most_common() :
        print('{0}\t{1}'.format(number[0], number[1]))
        
# src : Doing Math With Python

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Tags: find frequency list numbers python

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Contributed on Dec 29 2020

icy_milktea27

0 Answers Avg Quality 2/10

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how to get frequency of each elements in a python list

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# 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.

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Source: buggyprogrammer.com

Tags: each

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Contributed on May 24 2021

Frantic Ferret

0 Answers Avg Quality 2/10

Count the Frequency of Elements in a List

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def count_frequency(numbers):
    frequency = {}
    for num in numbers:
        if num in frequency:
            frequency[num] += 1
        else:
            frequency[num] = 1
    return frequency

numbers = [1, 2, 2, 3, 1, 4, 2, 4, 5]
frequency = count_frequency(numbers)
print("Frequency:", frequency)

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Tags: count elements frequency

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Contributed on Aug 14 2023

Python in LatEx :P

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Count Frequency of elements in array using python

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def countFreq(arr):
    visited = [False for _ in range(len(arr))]
    
    for i in range(len(arr)):
        count = 1
        if visited[i]:
            continue
        for j in range(i+1, len(arr)):
            if arr[i] == arr[j]:
                count += 1
                visited[j] = True
        visited[i] = True
        print(f'{arr[i]} : {count}')

# Time complexity: O(n * n)
# space complexity: O(n)

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Source: localhost

Tags: count elements elem

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Contributed on Oct 25 2022

Thoughtless Tiger

0 Answers Avg Quality 2/10

program to find frequency of all elements of a list

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list1=list(input("Enter list:"))
        length_list1=len(list1)
        uniq=[]
        dupl=[]
        count = i = 0
        while i < length_list1:
            element=list1[i]
            count=1
            if element not in uniq and element not in dupl:
                i += 1
                for j in range(i, length_list1):
                    if element == list1[j]:
                        count += 1
                else:
                    print("Element", element, "frequency", count)
                    if count == 1:
                        uniq.append(element)
                    else:
                        dupl.append(element)
            else:
                i += 1

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Contributed on Dec 17 2022

Prince Jain

0 Answers Avg Quality 2/10

find frequency of numbers in list python

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find frequency of numbers in list python

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how to get frequency of each elements in a python list

Count the Frequency of Elements in a List

Count Frequency of elements in array using python

program to find frequency of all elements of a list

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