var_Hajek: Hájek Approximate Variance Estimator

View source: R/varEst_class2.R

var_HajekR Documentation

Hájek Approximate Variance Estimator

Description

Compute an approximate variance estimate using the approximation of joint-inclusion probabilities proposed by Hájek (1964). Estimator of class 2, it requires only first-order inclusion probabilities and only for sample units.

Usage

var_Hajek(y, pik)

Arguments

y

numeric vector of sample observations

pik

numeric vector of first-order inclusion probabilities for sample units

Value

a scalar, the estimated variance


UPSvarApprox documentation built on Aug. 27, 2023, 9:06 a.m.