This function creates an object to store the number of clusters sampled
within each stratum (at each stage of multistage sampling) and the
number of clusters available in the population. It is called by
svydesign, not directly by the user.
Usage
as.fpc(df, strata, ids,pps=FALSE)
Arguments
df
A data frame or matrix with population size information
strata
A data frame giving strata at each stage
ids
A data frame giving cluster ids at each stage
pps
if TRUE, fpc information may vary within a stratum
and must be specified as a proportion rather than a population sizes
Value
An object of class survey_fpc
Details
The population size information may be specified as the number of
clusters in the population or as the proportion of clusters sampled.