feat: Add a median function to the calculator #14

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typosaurus merged 2 commits from typosaurus/13-add-a-median-function-to-the-calculator into main 2026-07-27 00:14:46 +02:00
Conversation 0 Commits 2 Files Changed 4 +14 -3
1 changed files with 14 additions and 3 deletions
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17
src/calculator.py
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@ -31,11 +31,15 @@ def average(values: list[int | float]) -> float:
return sum(values) / len(values)
def variance(values: Sequence[float]) -> float:
def median(values: list[float]) -> float:
if not values:
raise ValueError
mean = sum(values) / len(values)
return sum((x - mean) ** 2 for x in values) / len(values)
sorted_values = sorted(values)
n = len(sorted_values)
mid = n // 2
if n % 2 == 1:
return sorted_values[mid]
return (sorted_values[mid - 1] + sorted_values[mid]) / 2.0
def percentage(value: Union[int, float], total: Union[int, float]) -> float:
@ -43,3 +47,10 @@ def percentage(value: Union[int, float], total: Union[int, float]) -> float:
raise ValueError
return (value / total) * 100
def variance(values: Sequence[float]) -> float:
if not values:
raise ValueError
mean = sum(values) / len(values)
return sum((x - mean) ** 2 for x in values) / len(values)