Confidence intervals for derived parameters
confintd is a generic function to compute confidence intervals for continuous functions of the parameters in a fitted model. The function invokes particular methods which depend on the class of the first argument.
confintd(object, expr, level = 0.95, ...)
object: A fitted model object.
expr: An expression or character vector that can be transformed to an expression
giving the function(s) of the parameters to be evaluated. Each expression should evaluate to a numeric scalar.
level: A numeric scalar between 0 and 1 giving the level of the derived parameter confidence intervals.
...: Additional argument(s) for methods
A matrix with columns giving the fitted values and lower and upper confidence limits for each derived parameter. The row names list the individual derived parameter expressions.
confint