> On Aug 29, 2016, at 9:48 AM, David Remotti <da...@agros.it> wrote: > > Looking for some help in using the "survey" package > I have gone through the documentation but still find problems in > understanding how to prepare my data to be analyzed wih this package. > > In particular I dont understand how to prepare the fpc data. > The documentation provides a "small survey example" where 6 variables are > given: > stratid,psuids,weight,nh,Nh and x > > My survey is a two stage stratified sampling so I have for each stratum the > number of primary > and secondary units in the sample and in the population, and using these data > I can prepare such > data frame, except for the last variable "x". > I cant understand what does it means and which information I have to put > there. > > A second (minor) problem is that my stratification is based on two variables, > but it looks like it is only possible to give 1 variable as strata parameter. > Is it possible to give two ?
This tutorial by Lumley illustrates both data preparation and the use of a two-stage clustered design: https://www.unc.edu/courses/2010spring/ecol/562/001/docs/lectures/lecture20.htm#svydesign Found with a google search on "primary sampling unit secondary sampling unit r survey package lumley" -- David Winsemius Alameda, CA, USA ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
