PracTools: wtdvar – R documentation

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wtdvar

Compute weighted variance

Compute an estimate of a population unit variance from a complex sample with survey weights.

wtdvar(x,w,na.rm=TRUE)

`x`	data vector
`w`	vector of survey weights; must be same length as `x`
`na.rm`	remove missing values (TRUE or FALSE)

wtdvar is also used by BW3stagePPSe in estimating relvariance components.

numeric estimate of population unit variance

Richard Valliant, Jill A. Dever, Frauke Kreuter

Valliant, R., Dever, J., Kreuter, F. (2013, chap. 9). Practical Tools for Designing and Weighting Survey Samples. Springer.

x <- c(1:3)
wts <- c(4, 6, 8)
wtdvar(x=x, w=wts)

Tools for Designing and Weighting Survey Samples

v1.2.2

GPL (>= 2)

Authors

Richard Valliant, Jill A. Dever, Frauke Kreuter

Initial release

2020-07-12