intervals.DRMod: Calculate confidence intervals for parameters in a DRMod object.
Description
Calculate (asymptotic) confidence intervals for parameters in a DRMod object,
based on standard asymptotic theory for nonlinear models, see Seber and Wild (2003).
Usage
## S3 method for class 'DRMod':
intervals(object, level = 0.95, data = getData(object),
uGrad = NULL, ...)
Arguments
object
A DRMod object
level
Confidence level to be used
data
Data frame containing the variables on which the DRMod object has
been fitted.
uGrad
Function to return the gradient of a user defined model, see
Examples of the fitDRModel function.
...
Additional arguments
Value
Data frame containing the confidence limits
References
Seber, G.A.F and Wild, C.F. (2003). Nonlinear Regression, Wiley & Sons