Icens (version 1.44.0)

ISDM: Estimate the NPMLE of censored data using the ISDM method proposed in Lesperance and Kalbfleisch (19

Description

ISDM is a method for estimating the NPMLE of censored data.

Usage

ISDM(A, pvec, maxiter=500, tol=1e-07, tolbis=1e-08, verbose=FALSE)

Arguments

A

The m by n incidence, or clique, matrix. Or the n by 2 matrix containing the event intervals.

pvec

An initial estimate of the probability vector; not required.

maxiter

Maximum number of iterations to be made.

tol

The tolerance used to determine convergence.

tolbis

A second tolerance used for the steps.

verbose

Boolean, should verbose output be printed.

Value

A list containing:

pf

The estimated NPMLE of the probability vector.

numiter

The number of iterations performed.

Details

Lots of complicated stuff should go here.

References

An Algorithm for Computing the Nonparametric MLE of a Mixing Distribution, Lesperance, Mary L. and Kalbfleisch, John D., JASA, 1992

See Also

VEM, EMICM, PGM

Examples

    data(cosmesis)
    csub1 <- subset(cosmesis, subset=Trt==0, select=c(L,R))
    ISDM(csub1)
#    data(pruitt)
#    ISDM(pruitt)