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2006 Jul 07
2
Multistage Sampling
...you do. Thank you so much. I am struggling with a multistage sampling design: library(survey) multi3 <- data.frame(cluster=c(1,1,1,1 ,2,2,2, 3,3), id=c(1,2,3,4, 1,2,3, 1,2), nl=c(4,4,4,4, 3,3,3, 2,2), Nl=c(100,100,100,100, 50,50,50, 75,75), M=rep(23,9), y=c(23,33,77,25, 35,74,27, 37,72) ) dmulti3 <- svydesign(id=~cluster+id, fpc=~M+Nl, data=multi3) svymean (~y, dmulti3) mean SE y 45.796 5.5483 svytotal(~y, dmulti3) total SE y 78999 13643 and I estimate the population total as N=M/m sum(Nl) = 23/3*(100+50+75)=1725. With this, my variance estimator is: y1<-mean(multi3$y[...