UPmultinomial {sampling} | R Documentation |
Use Hansen-Hurwitz method to select a sample of units (unequal probabilities, with replacement, fixed sample size).
UPmultinomial(pik)
pik |
vector of prescribed inclusion probabilities. |
Return a vector (with elements 0 and 1) of size N, where N is the population size. Each element k of this vector indicates the status of the unit k (1, the unit k is selected in the sample; 0, otherwise).
Hansen, M. and Hurwitz, W. (1943), On the theory of sampling from finite populations. Annals of Mathematical Statistics, 14:333-362.
#define the prescribed inclusion probabilities pik=c(0.2,0.7,0.8,0.5,0.4,0.4) #select a sample s=UPmultinomial(pik) #the sample is (1:length(pik))[s==1]