Is There a Clear Winner? — medium Python for AI problem | Incognition

Is There a Clear Winner?

10 pts · 10 coins

Python for AIMedium

Is There a Clear Winner?

Before training on labelled data, it's worth checking whether one label swamps all the others.

Task: write majority_label(labels) that returns the label that makes up more than half of the list. If no label does, return None.

Exactly half is not more than half: in a list of 4, a label needs at least 3.
An empty list returns None.
Labels are compared exactly as they are ("cat" and "Cat" are different).

Examples

labels = ["spam", "ham", "spam"]

returns 'spam'

labels = ["cat", "dog", "cat", "dog"]

returns None

Hints

solution.py

1def majority_label(labels):
2    # your code here
3    pass
4