jackknifeKME (version 1.0)

kmweight.corr: Compute corrected Kaplan-Meier weights for jackknifing

Description

These are the adjusted Kaplan-Meier weights. The adjustment is made to the original Kaplan-Meier weights for being used in jackknifing to estimate Kaplan-Meier estimators. The adjustment is ocurred if and only if delta_(n-1)=0 and delta_(n)=1. For details see Stute and Wang (1994), Khan and Shaw (2012b).

Usage

kmweight.corr(Y, delta)

Arguments

Y

survival time.

delta

status.

Value

• The corrected Kaplan-Meier weights are obtainable if the underlying censoring is the right censoring.
• kmwts
  corrected Kaplan-Meier weights

References

Khan, M. H. R. and Shaw, J. E. H. (2012b). Robust bias estimation for Kaplan-Meier survival estimator with jackknifing (Preprint). Stute, W. and Wang, J. (1994). The jackknife estimate of a Kaplan-Meier integral. Biometrika 81, 602-606.

Examples

#Using simdata function. Censoring level is 50\%.
data<-simdata(n = 100,lambda = 2.04) 
kmwc<-kmweight.corr(data$Y, data$delta)
kmwc