def variance(xs: List[float]) -> float: """Almost the average squares deviation from the mean""" assert len(xs) >= 2, "variance requires at least two elements" n = len(xs) deviations = de_mean(xs) return sum_of_squares(deviations) / (n - 1)
def variance(x): """assumes x has at least two elements :x: list :returns: variance integer """ n = len(x) deviations = de_mean(x) return sum_of_squares(deviations) / (n - 1)
def variance(x): """assumes x has at least two elements""" n = len(x) mean_deviations = de_mean(x) return sum_of_squares(mean_deviations) / n - 1
def variance(x): n = len(x) deviations = de_mean(x) return sum_of_squares(deviations) / (n - 1)
def variance(x, len_x): deviations = de_mean(x,len_x) return sum_of_squares(deviations) / len_x
def variance(xs: List[float]) -> float: return sum_of_squares(de_mean(xs)) / (len(xs) - 1)
def variance(xs: List[float]) -> float: assert len(xs) >= 2, "at least 2 values" n = len(xs) deviations = de_mean(xs) return sum_of_squares(deviations) / (n - 1)
def variance(xs: List[float]) -> float: "Average squared difference from the mean (however we divide by n-1 instead of n)" n = len(xs) deviations = de_mean(xs) return sum_of_squares(deviations) / (n - 1)
def variance(x): """assumes x has at least two elements""" n = len(x) deviations = de_mean(x) return sum_of_squares(deviations) / (n - 1)
def variance(x): '''assumes x has at least two elements''' n = len(x) deviations = de_mean(x) return sum_of_squares(deviations) / (n - 1)
def variance(x): n = len(x) deviatations = de_mean(x) return sum_of_squares(deviatations) / (n - 1)
def test_sum_of_squares(self): self.assertEqual(6, sum_of_squares([1, 2, 1]))
def variance(x): #xには値を少なくとも2つあることを前提とする n = len(x) deviations = de_mean(x) return sum_of_squares(deviations) / (n - 1)
def variance(x): """assumes x has at least two elements""" n = len(x) deviations = de_mean(x) return la.sum_of_squares(deviations) / (n - 1)
C = la.vector_subtract(A, B) print("A - B = ", C) C = la.vector_sum([A, B]) print("A and B summary = ", C) C = la.scalar_multiply(10, A) print("10 * A = ", C) C = la.vector_mean([A, B]) print("A and B mean = ", C) C = la.dot(A, B) print("A dot B = ", C) C = la.sum_of_squares(A) print("A^2's summary = ", C) C = la.magnitude(A) print("A's magnitude = ", C) C = la.distance(A, B) print("A's distance = ", C) print() print("*** matrix ......") M = [[1, 2, 3], [5, 6, 7], [3, 6, 9]] print("M = ", M) shape = la.shape(M) print("M's shape = ", shape)
def variance(x): # type: (object) -> object """assumes x has at least two elements""" n = len(x) deviations = de_mean(x) return sum_of_squares(deviations) / (n - 1)
def magnitude(v): return math.sqrt(sum_of_squares(v))
def variance(x): n = len(x) #204 deviations = de_mean(x) #16553,33 return sum_of_squares(deviations) / (n-1)
def squared_distance(v, w): return sum_of_squares(vector_subtract(v, w))