Item frequency count in Python

by

The Counter class in the collections module is purpose built to solve this type of problem:

from collections import Counter
words = "apple banana apple strawberry banana lemon"
Counter(words.split())
# Counter({'apple': 2, 'banana': 2, 'strawberry': 1, 'lemon': 1})

More Related Contents:

  1. How to count the frequency of the elements in an unordered list?
  2. How to create a counter for each new instance of string in python?
  3. I have a list of file names and I need to be able to count how many of the same file gets repeated for each file name [closed]
  4. How do I count the occurrences of a list item?
  5. How to sort a list of objects based on an attribute of the objects?
  6. Count the number of occurrences of a character in a string
  7. Count the frequency that a value occurs in a dataframe column
  8. How to find length of digits in an integer?
  9. Pandas ‘count(distinct)’ equivalent
  10. Fast way of counting non-zero bits in positive integer
  11. How to count the occurrence of certain item in an ndarray?
  12. How to find most common elements of a list? [duplicate]
  13. Why are str.count(”) and len(str) giving different output?
  14. How do I count the occurrence of a certain item in an ndarray?
  15. Group by & count function in sqlalchemy
  16. Count consecutive characters
  17. Get number of items from list (or other iterable) with certain condition
  18. Finding occurrences of a word in a string in python 3
  19. Sort list by frequency
  20. Python frequency detection
  21. How to count the number of files in a directory using Python
  22. How to obtain the total numbers of rows from a CSV file in Python?
  23. Row count in a csv file
  24. Pivot Tables or Group By for Pandas?
  25. Count() vs len() on a Django QuerySet
  26. Pivot Tables of Counts in Pandas DataFrame
  27. How to count digits, letters, spaces for a string in Python?
  28. Counting the number of True Booleans in a Python List
  29. Python – Finding word frequencies of list of words in text file
  30. What values are valid in Pandas ‘Freq’ tags?

Leave a Comment