TML.censored.control.tml: Control parameters for the IRLS algorithm of the final...

In RobustAFT: Truncated Maximum Likelihood Fit and Robust Accelerated Failure Time Regression for Gaussian and Log-Weibull Case

Control parameters for the IRLS algorithm of the final TML.censored 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.tml(maxit.sigma=20, tol.sigma=0.0001, maxit.Beta=20, 
    tol.Beta=0.0001,Maxit.TML=50, tol.TML.sigma=0.001, tol.TML.Beta=0.001, 
    alg.sigma=1, nitmon = FALSE)

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.TML	Maximum number of iterations for global cycle.
tol.TML.sigma	Tolerance for sigma in global cycle.
tol.TML.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.

Value

A list with components named as the arguments.

See Also

TML.censored, TML.censored.control.S, TML.censored.control.ref

Examples

     ### In the example(TML.censored), the control argument for the final estimates 
	 ### can be built using this function:
	 
	 ## Not run: 
     data(MCI)
     attach(MCI)
     
     # Robust Accelerated Failure Time Regression with Gaussian errors
     ctrol.ref <- list(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 <- TML.censored.control.tml(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)

## End(Not run)

RobustAFT documentation built on Aug. 21, 2023, 5:13 p.m.