This function uses spline interpolation to derive level confidence intervals.
# S3 method for extprof
confint(object, parm, level = 0.95, ...)a specification of which parameters are to be given confidence intervals, either a vector of numbers or a vector of names. If missing, all parameters are considered.
confidence level, with default 0.95
additional arguments passed to functions. Providing a logical warn=FALSE turns off warning messages when the lower or upper confidence interval for psi are extrapolated beyond the provided calculations.
a 2 by 3 matrix containing point estimates, lower and upper confidence intervals based on the likelihood root and modified version thereof