mu284 {survey} | R Documentation

## Two-stage sample from MU284

### Description

The MU284 population comes from Sarndal et al, and the complete data are available from Statlib. These data are a two-stage sample from the population, analyzed on page 143 of the book.

### Usage

    data(mu284)

### Format

A data frame with 15 observations on the following 5 variables.

`id1`
  identifier for PSU
`n1`
  number of PSUs in population
`id2`
  identifier for second-stage unit
`y1`
  variable to be analysed
`n2`
  number of second-stage units in this PSU

### Source

Carl Erik Sarndal, Bengt Swensson, Jan Wretman. (1991) "Model Assisted Survey Sampling" Springer.

### References

Full MU284 population at http://lib.stat.cmu.edu/datasets/mu284

### Examples

    data(mu284)
    (dmu284<-svydesign(id=~id1+id2,fpc=~n1+n2, data=mu284))
    (ytotal<-svytotal(~y1, dmu284))
    vcov(ytotal)

[Package survey version 3.19 Index]