a_amean {COINr} | R Documentation |

## Weighted arithmetic mean

### Description

The vector of weights `w`

is relative since the formula is:

### Usage

```
a_amean(x, w)
```

### Arguments

`x` |
A numeric vector. |

`w` |
A vector of numeric weights of the same length as |

### Details

` y = \frac{1}{\sum w_i} \sum w_i x_i `

If `x`

contains `NA`

s, these `x`

values and the corresponding `w`

values are removed before applying the
formula above.

### Value

The weighted mean as a scalar value

### Examples

```
x <- c(1:10)
w <- c(10:1)
a_amean(x,w)
```

[Package

*COINr*version 1.1.14 Index]