Extracts the estimated mean(s) or their standard error(s) from the nonprob object

Returns a vector of estimated mean(s) or standard error(s)

Usage

extract(object, what)

Arguments

object

object of of the nonprob class

what

what to extract: all estimates (mean(s), SE(s) and CI(s); "all"; default), estimated mean(s) ("mean") or their standard error(s) ("se")

Value

a data.frame with selected information

Examples

data(admin)
data(jvs)

jvs_svy <- svydesign(ids = ~ 1,  weights = ~ weight,
strata = ~ size + nace + region, data = jvs)

ipw_est1 <- nonprob(selection = ~ region + private + nace + size,
target = ~ single_shift,
svydesign = jvs_svy,
data = admin, method_selection = "logit"
)
extract(ipw_est1)
#>         target      mean         SE lower_bound upper_bound
#> 1 single_shift 0.7223628 0.04207711   0.6398932   0.8048324
extract(ipw_est1, "se")
#>         target         SE
#> 1 single_shift 0.04207711