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7a9b3c7292
* Added average absolute deviation * Formats program with black * reruns updated pre commit * Update average_absolute_deviation.py Co-authored-by: Christian Clauss <cclauss@me.com>
30 lines
859 B
Python
30 lines
859 B
Python
def average_absolute_deviation(nums: list[int]) -> float:
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"""
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Return the average absolute deviation of a list of numbers.
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Wiki: https://en.wikipedia.org/wiki/Average_absolute_deviation
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>>> average_absolute_deviation([0])
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0.0
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>>> average_absolute_deviation([4, 1, 3, 2])
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1.0
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>>> average_absolute_deviation([2, 70, 6, 50, 20, 8, 4, 0])
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20.0
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>>> average_absolute_deviation([-20, 0, 30, 15])
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16.25
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>>> average_absolute_deviation([])
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Traceback (most recent call last):
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...
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ValueError: List is empty
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"""
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if not nums: # Makes sure that the list is not empty
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raise ValueError("List is empty")
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average = sum(nums) / len(nums) # Calculate the average
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return sum(abs(x - average) for x in nums) / len(nums)
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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