Compute skewness of a numeric vector — compute

Calculates the skewness of a numeric vector using the \(b_1\) formula consistent with MINITAB and BMDP. Missing values are removed before computation.

Usage

compute_skewness(vector)

Arguments

vector: Numeric vector.

Value

A numeric scalar. Positive values indicate right skew, negative values indicate left skew.

Note

Formula used: \(b_1 = m_3 / s^3 = g_1 ((n-1)/n)^{3/2}\). Used in MINITAB and BMDP. Results match e1071::skewness() with type = 2.

Examples

set.seed(1)
vector <- rnorm(1000)
compute_skewness(vector)
#> [1] -0.01913836
e1071::skewness(vector)
#> [1] -0.01913836