View source: R/varEst_class2.R
var_Brewer_class2 | R Documentation |
Computes an approximate variance estimate according to one of the estimators proposed by Brewer (2002). This estimator belongs to class 2, it requires only first-order inclusion probabilities and only for sample units.
var_Brewer_class2(y, pik)
y |
numeric vector of sample observations |
pik |
numeric vector of first-order inclusion probabilities for sample units |
a scalar, the estimated variance
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