cpp_mean: Calculate mean by factors

In surveysd: Survey Standard Error Estimation for Cumulated Estimates and their Differences in Complex Panel Designs

Calculate mean by factors

Description

These functions calculate the arithmetic and geometric mean of the weight for each class. geometric_mean and arithmetic_mean return a numeric vector of the same length as w which stores the averaged weight for each observation. geometric_mean_reference returns the same value by reference, i.e. the input value w gets overwritten by the updated weights. See examples.

Usage

geometric_mean_reference(w, classes)

Arguments

w	An numeric vector. All entries should be positive.
classes	A factor variable. Must have the same length as w.

Examples

## Not run: 

## create random data
nobs <- 10
classLabels <- letters[1:3]
dat = data.frame(
  weight = exp(rnorm(nobs)),
  household = factor(sample(classLabels, nobs, replace = TRUE))
)
dat

## calculate weights with geometric_mean
geom_weight <- geometric_mean(dat$weight, dat$household)
cbind(dat, geom_weight)

## calculate weights with arithmetic_mean
arith_weight <- arithmetic_mean(dat$weight, dat$household)
cbind(dat, arith_weight)

## calculate weights "by reference"
geometric_mean_reference(dat$weight, dat$household)
dat

## End(Not run)

surveysd documentation built on Dec. 28, 2022, 2:15 a.m.