Last data update: 2014.03.03

 R: Calculates the Kaplan Meier survival probability for...
Ghat.FUNR Documentation

Calculates the Kaplan Meier survival probability for censoring

Description

Calculates the survival probability for censoring i.e. P(C > tt) where C is censoring; used in inverse probability of censoring weights (IPCW). This function is called by Wi.FUN; this function should not be called on its own.

Usage

Ghat.FUN(tt, data, type = "fl", weight.given)

Arguments

tt

the time (or vector of times) at which the survival probability should be estimated.

data

n by k matrix, where k>=2. A data matrix where the first column is XL = min(TL, C) where TL is the time of the long term event, C is the censoring time, and the second column is DL =1*(TL<C)

type

type sent to survfit function, default is "fl".

weight.given

a weight to be used in estimation.

Value

survival probability for censoring at time tt

Author(s)

Layla Parast

Results


Created & Maintained by Osamu Ogasawara (osamu.ogasawara@gmail.com) and IMSBIO