head(workplace)
library("survey")
# Survey design for stratified simple random sampling without replacement
dn <- if (packageVersion("survey") >= "4.2") {
# survey design with pre-calibrated weights
svydesign(ids = ~ID, strata = ~strat, fpc = ~fpc, weights = ~weight,
data = workplace, calibrate.formula = ~-1 + strat)
} else {
# legacy mode
svydesign(ids = ~ID, strata = ~strat, fpc = ~fpc, weights = ~weight,
data = workplace)
}
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