src/calculator.py

@@ -31,15 +31,11 @@ def average(values: list[int | float]) -> float:
     return sum(values) / len(values)
 
 
-def median(values: list[float]) -> float:
+def variance(values: Sequence[float]) -> float:
     if not values:
         raise ValueError
-    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
+    mean = sum(values) / len(values)
+    return sum((x - mean) ** 2 for x in values) / len(values)
 
 
 def percentage(value: Union[int, float], total: Union[int, float]) -> float:
@@ -47,10 +43,3 @@ 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)
-

src/typosaurus_sandbox/domain/calculator/__init__.py

@@ -1,6 +1,7 @@
 # retoor <retoor@molodetz.nl>
 
-from typosaurus_sandbox.domain.calculator.operations import add, average, clamp, clamp_to_byte, median, percentage, subtract, variance
+from typosaurus_sandbox.domain.calculator.operations import add, average, clamp, clamp_to_byte, percentage, subtract, variance
+
+__all__ = ["add", "average", "clamp", "clamp_to_byte", "percentage", "subtract", "variance"]
 
-__all__ = ["add", "average", "clamp", "clamp_to_byte", "median", "percentage", "subtract", "variance"]
 

src/typosaurus_sandbox/domain/calculator/operations.py

@@ -31,17 +31,6 @@ def average(values: list[int | float]) -> float:
     return sum(values) / len(values)
 
 
-def median(values: list[float]) -> float:
-    if not values:
-        raise ValueError
-    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 variance(values: Sequence[float]) -> float:
     if not values:
         raise ValueError

tests/test_calculator.py

@@ -3,7 +3,7 @@
 import math
 import unittest
 
-from typosaurus_sandbox.domain.calculator import add, average, clamp, clamp_to_byte, median, subtract, variance
+from typosaurus_sandbox.domain.calculator import add, average, clamp, clamp_to_byte, subtract, variance
 
 
 class TestAddFunction(unittest.TestCase):
@@ -125,32 +125,6 @@ class TestClampFunction(unittest.TestCase):
         self.assertTrue(math.isnan(result))
 
 
-class TestMedianFunction(unittest.TestCase):
-
-    def test_odd_length_returns_middle_element(self) -> None:
-        self.assertEqual(median([1, 3, 5]), 3)
-
-    def test_even_length_returns_float_average_of_two_middle_values(self) -> None:
-        result = median([1, 2, 3, 4])
-        self.assertIsInstance(result, float)
-        self.assertEqual(result, 2.5)
-
-    def test_single_element_returns_that_element(self) -> None:
-        self.assertEqual(median([7]), 7)
-
-    def test_empty_list_raises_value_error(self) -> None:
-        with self.assertRaises(ValueError):
-            median([])
-
-    def test_unsorted_input_sorts_correctly(self) -> None:
-        self.assertEqual(median([3, 1, 2]), 2)
-
-    def test_unsorted_even_length_returns_float_average(self) -> None:
-        result = median([10, 30, 20, 40])
-        self.assertIsInstance(result, float)
-        self.assertEqual(result, 25.0)
-
-
 class TestVarianceFunction(unittest.TestCase):
 
     def test_empty_list_raises_value_error(self) -> None: