How to Calculate Mode of List in Python

In this article, you will learn how to calculate the mode of a list in Python.

Let’s say you have a list named ‘a’ with value [1, 2, 1, 3, 2, 2, 1, 3, 4].

a = [1, 2, 1, 3, 2, 2, 1, 3, 4]

In order to calculate the mode of a list, you can use the statistics.mode() method.

# Import statistics module
import statistics

a = [1, 2, 1, 3, 2, 2, 1, 3, 4]

print(statistics.mode(a))
# => 1

Note: The statistics.mode() method functions by returning the mode of a supplied list. In statistics, mode refers to a value that appears the most often in a set of values.