# Sample Skewness and Kurtosis

### Description

Computes the sample skewness and sample kurtosis.

### Usage

1 2 |

### Arguments

`x` |
A numeric vector containing the values whose skewness or kurtosis is to be computed. |

`na.rm` |
A logical value indicating whether |

### Details

If *N = length(x)*, then the skewness of
*x* is defined as

*
N^(-1) sd(x)^(-3) sum_i (x_i - mean(x))^3.*

If *N = length(x)*, then the kurtosis of
*x* is defined as

*
N^(-1) sd(x)^(-4) sum_i (x_i - mean(x))^4 - 3.*

### Value

The skewness or kurtosis of `x`

.

### Note

These functions and the description of them are taken from the package e1071. They are included to avoid having to require an additional package.

### Author(s)

Evgenia Dimitriadou, Kurt Hornik, Friedrich Leisch, David Meyer, and Andreas Weingessel

### Examples

1 2 3 |