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Dictionaries & sets

Key–value maps, uniqueness, counting, grouping, and fast lookups.

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How to Use Counter for Most Common Elements in Python

This code demonstrates how to find the most frequent elements in a list using Python's Counter class from the collections module.

collections counter frequency
Python 
from collections import Counter

def most_common_elements(items, n=1):
    """Return the n most common elements and their counts."""
    counter = Counter(items)
    return counter.most_common(n)

if __name__ == "__main__":
    data = ["apple", "banana", "apple", "orange", "banana", "apple", "grape"]
    print(most_co…
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