RobustAFT (version 1.4-7)

TML.censored.control.ref: Control parameters for the refinement IRLS algorithm of the TML.censored initial S-estimates

Description

Auxiliary function for TML.censored. Typically only used internally by TML.censored, but may be used to provide a control argument. This function provides default values.

Usage

TML.censored.control.ref(maxit.sigma=2, tol.sigma=0.0001, maxit.Beta=2, 
      tol.Beta=0.0001, Maxit.S=50, tol.S.sigma=0.001, tol.S.Beta=0.001, 
      alg.sigma=1, nitmon = FALSE)

Value

A list with components named as the arguments.

Arguments

maxit.sigma

Maximum number of iterations in scale step.

tol.sigma

Tolerance for sigma in scale step.

maxit.Beta

Maximum number of iterations in coefficient step.

tol.Beta

Tolerance for coefficients in coefficient step.

Maxit.S

Maximum number of iterations in global cycle.

tol.S.sigma

Tolerance for sigma in global cycle.

tol.S.Beta

Tolerance for coefficients in global cycle.

alg.sigma

Type of algorithm in scale step:

• 1: fixed point algorithm.

• 2: regula falsi.

nitmon

Set to TRUE if iteration monitoring is desired. Default=FALSE.

See Also

TML.censored, TML.censored.control.S, TML.censored.control.tml

Examples

     ### In the example(TML.censored), the control argument for the refinement 
     ### algorithm can be built using this function:
if (FALSE) {
     data(MCI)
     attach(MCI)
     
     # Robust Accelerated Failure Time Regression with Gaussian errors

     ctrol.ref <- TML.censored.control.ref(maxit.sigma=2,tol.sigma=0.0001,
                  maxit.Beta=2,tol.Beta=0.0001, Maxit.S=50, tol.S.sigma=0.001, 
                  tol.S.Beta=0.001,alg.sigma=1,nitmon=FALSE)

     ctrol.tml <- list(maxit.sigma=50,tol.sigma=0.0001,maxit.Beta=50,
                  tol.Beta=0.0001, Maxit.TML=50, tol.TML.sigma=0.001, 
                  tol.TML.Beta=0.001, alg.sigma=1,nitmon=FALSE)
     
     WML<-TML.censored(log(LOS)~TypAdm*Age,data=MCI,delta=Dest,otp="adaptive",
                  control.ref=ctrol.ref,control.tml=ctrol.tml)

     summary(WML)
}