weighted.sd: Weighted standard deviation

In vtable: Variable Table for Variable Documentation

Weighted standard deviation

Description

This is a basic weighted standard deviation function, mainly for internal use with sumtable.

Usage

weighted.sd(x, w, na.rm = TRUE, type = "frequency")

Arguments

x	A numeric vector.
w	A vector of weights. Negative weights are not allowed.
na.rm	Set to TRUE to remove indices with missing values in x or w.
type	The type of weights to use. The default is 'frequency', which is applied when the weights represent frequencies. Also supports 'precision' which is to be used when the weights represent precision.

Examples

x <- c(1, 1, 2, 3, 4, 4, 4)
w <- c(4, 1, 3, 7, 0, 2, 5)
weighted.sd(x, w)

vtable documentation built on April 3, 2025, 11:16 p.m.