Standard Deviation
Calculates the sample standard deviation of a numeric vector. With
weights, uses the weighted population denominator
(sum(weights)).
x (Vector): | List The numeric
data.
na_rm (Bool): (Optional) logical.
Should missing values be removed? Default is false.
weights (Vector[Float]): |
List[Float] = NA Optional non-negative observation weights.
The standard deviation.
sd([1, 2, 3, 4, 5])
-- Returns = 1.5811...