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Python

Posted by Keifer Joedicker
Keifer Joedicker
5,869 Points

Iterating through a list to find the most common entry

I know that there is a python library that can do this but i'm having trouble manually writing a function that can iterate through a list and count how many times a entry appears.

Alexander Davison
Alexander Davison
65,469 Points

Can you explain your question in more detail? Are you trying to find out how many times a string occurs in a list?

Keifer Joedicker
Keifer Joedicker
5,869 Points

I want to see which integer/string occurs the most in a list.

1 Answer

Alexander Davison
Alexander Davison
65,469 Points
Alexander Davison
Alexander Davison
65,469 Points

Oh, I see. You can do that with this function:

def most_common_value(list_):
    value_occurrences = {}
    for value in list_:
        if value in value_occurrences:
            value_occurrences[value] += 1
        else:
            value_occurrences[value] = 1
    result = ''
    result_occurrences = 0
    for value, occurrences in value_occurrences.items():
        if occurrences > result_occurrences:
            result = value
            result_occurrences = occurrences
    return result

CODE EDITED