e1071 (version 1.3-4)

skewness: Skewness

Description

Computes the skewness.

Usage

skewness(x, na.rm=FALSE)

Arguments

x

a numeric vector containing the values whose skewness is to be computed.

na.rm

a logical value indicating whether NA values should be stripped before the computation proceeds.

Value

• The skewness of x.

Details

If $N = \mathrm{length}(x)$, then the skewness of $x$ is defined as $$N^{-1} \mathrm{sd}(x)^{-3} \sum_i (x_i - \mathrm{mean}(x))^3.$$

Examples

x <- rnorm(100)
skewness(x)