A generic function that returns the confidence interval
for the estimated mean. If standard errors have not been estimated, the function
updates the nonprob
object to obtain standard errors.
# S3 method for nonprob
confint(object, parm, level = 0.95, ...)
returns a data.frame
with confidence intervals for the target variables
object of nonprob
class.
names of parameters for which confidence intervals are to be computed, if missing all parameters will be considered.
confidence level for intervals.
additional arguments