.update_weights_strat_wilson {cardx} | R Documentation |
Helper Function for the Estimation of Weights for proportion_ci_strat_wilson()
Description
This function wraps the iteration procedure that allows you to estimate the weights for each proportional strata. This assumes to minimize the weighted squared length of the confidence interval.
Usage
.update_weights_strat_wilson(
vars,
strata_qnorm,
initial_weights,
n_per_strata,
max.iterations = 50,
conf.level = 0.95,
tol = 0.001
)
Arguments
vars |
( |
strata_qnorm |
( |
initial_weights |
( |
n_per_strata |
( |
max.iterations |
( |
conf.level |
(scalar |
tol |
( |
Value
A list
of 3 elements: n_it
, weights
, and diff_v
.
See Also
For references and details see proportion_ci_strat_wilson()
.
Examples
vs <- c(0.011, 0.013, 0.012, 0.014, 0.017, 0.018)
sq <- 0.674
ws <- rep(1 / length(vs), length(vs))
ns <- c(22, 18, 17, 17, 14, 12)
cardx:::.update_weights_strat_wilson(vs, sq, ws, ns, 100, 0.95, 0.001)