sys_devillepi2 | R Documentation |
This function returns the second order inclusion probabilities of Deville's systematic.
sys_devillepi2(pik)
pik |
A vector of inclusion probabilities |
A matrix of second order inclusion probabilities.
Deville, J.-C. (1998), Une nouvelle méthode de tirage à probabilité inégales. Technical Report 9804, Ensai, France.
Chauvet, G. (2012), On a characterization of ordered pivotal sampling, Bernoulli, 18(4):1320-1340
set.seed(1) N <- 30 n <- 4 pik <- as.vector(inclprob(runif(N),n)) PI <- sys_devillepi2(pik) #image(as(as.matrix(PI),"sparseMatrix")) pik <- c(0.2,0.5,0.3,0.4,0.9,0.8,0.5,0.4) PI <- sys_devillepi2(pik) #image(as(as.matrix(PI),"sparseMatrix"))
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