On Sun, 24 Sep 2006, justin bem wrote: > Hi dear all, > > I have a complex survey data to analyse. I have a stratified survey with three > stages level. The first stage is a PPS, but all other are SRSWOR. The > solution >propose in survey package is to considere PPS as SRS with repetion.
No, the solution proposed is to consider it as PPS with replacement. > I have try this > > E3stage<-svydesign(ids=~stage1id+stage2id+stage3id, fpc=~fpc1+fpc2+fpc3, ...) > > This is the value for WOR sampling at all stage. What value should I give to > >fpc1 to have the same value of variance that in sampling with repetion ? I > try >fpc1<-rep(0,length(data)) I get a error message. For sampling with replacement you just omit the fpc and specify the first-stage id and the sampling weights E3stage <-svydesign(ids=~stageid1, weights=~weights) -thomas Thomas Lumley Assoc. Professor, Biostatistics [EMAIL PROTECTED] University of Washington, Seattle ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.