Subpopulation (domain) mean with Woodruff linearised SE.

Usage

morie_survey_subpop(df, domain_col, domain_value, outcome_col, weight_col)

df: A data.frame holding the (unit-level) sample data plus any weight/strata/cluster/domain columns referenced by name.
domain_col: Character; column name of the subpopulation / domain indicator in df.
domain_value: Value (matching df[[domain_col]]) defining the subpopulation to estimate.
outcome_col: Character; column name of the outcome variable in df.
weight_col: Character; column name of the design weight variable in df.