bootweights {survey} | R Documentation |
Bootstrap weights for infinite populations are created by sampling with
replacement from the PSUs in each stratum. subbootweights()
samples n-1
PSUs from the n
available (Rao and Wu),
bootweights
samples n
(Canty and Davison).
bootweights()
is most useful when the strata are large and may have
large sampling fractions, subbootweights()
is useful when the
strata have a small number of PSUs and the sampling fractions are small.
This bootstrap is strictly appropriate only when the first stage of sampling is a simple or stratified random sample of PSUs with or without replacement, and not (eg) for PPS sampling.
bootweights(strata, psu, replicates = 50, fpc = NULL, fpctype = c("population", "fraction", "correction"), compress = TRUE) subbootweights(strata, psu, replicates = 50, compress = TRUE)
strata |
Identifier for sampling strata (top level) |
psu |
Identifier for primary sampling units |
replicates |
Number of bootstrap replicates |
fpc |
Finite population correction |
fpctype |
Is fpc the population size, sampling fraction,
or 1-sampling fraction? |
compress |
Should the replicate weights be compressed? |
A set of replicate weights
Canty AJ, Davison AC. (1999) Resampling-based variance estimation for labour force surveys. The Statistician 48:379-391
Rao JNK, Wu CFJ. Bootstrap inference for sample surveys. Proc Section on Survey Research Methodology. 1993 (866–871)