wtd.var: Calculates Variance of Variable With Option for Weights

In RCPA3: Data and Functions for R Companion to Political Analysis 3rd Ed

Calculates Variance of Variable With Option for Weights

Description

Takes in variable and calculates its variance, works with sampling weights. Makes use of the wtd.var function from the Hmisc package. See wtd.stats documentation for details.

Usage

wtd.var(x, w = NULL, data, digits = 3, ...)

Arguments

x	A variable (must be numeric), should be in dataset$var form unless dataset specified in optional data argument.
w	(Optional) Sampling weights of variable, must be numeric; should be in dataset$weightvar form unless dataset specified in optional data argument.
data	(Optional) Name of dataset that contains x (and w) variable.
digits	(Optional) Number of decimal places reported in result (defaults to 3).
...	(Optional) Additional arguments passed to Hmisc::wtd.var function.

Value

Returns the variance of the variable, a numeric value.

Examples

   library(RCPA3)
   
   wtd.var(x=nes$ft.socialists, w=nes$wt)
   wtd.var(x=nes$ft.socialists)

RCPA3 documentation built on May 29, 2024, 12:19 p.m.