model.frame.intReg: Data used for estimating interval regression model
Description
Return the variables used for estimating an interval regression model
Usage
"model.frame"( formula, ... )
Arguments
formula
object of class intReg
.
...
further arguments passed to other methods
(e.g. model.frame
). Value
A data.frame containing all variables used for the estimation.The response variable is given as a factor (in case of common
boundaries) or as two numeric vectors, corresponding to the lower- and
upper boundary for each observation.