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COINr (version 1.1.14)

a_amean: Weighted arithmetic mean

Description

The vector of weights w is relative since the formula is:

Usage

a_amean(x, w)

Value

The weighted mean as a scalar value

Arguments

x

A numeric vector.

w

A vector of numeric weights of the same length as x.

Details

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

If x contains NAs, these x values and the corresponding w values are removed before applying the formula above.

Examples

Run this code
x <- c(1:10)
w <- c(10:1)
a_amean(x,w)

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