Auxiliary for Controlling trSurvfit Fitting

Auxiliary function as user interface for trSurvfit fitting.

trSurv.control(interval = c(-1, 20), lower = min(interval),
  upper = max(interval))

Arguments

interval	a vector containing the end-points of the interval to be searched the transformation parameter.
lower	the lower end-point of the interval to be searched.
upper	the upper end-point of the interval to be searched.