NN {prodlim}R Documentation

Dummy function

Description

This is a special function used in the context of the conditional product limit estimator. It is similar to the function strata and can be used in a formula to force a stratified analysis in nearest neighborhoods defined by the values of a continuous predictor.

Usage

 NN(x)

Arguments

x A continuous predictor

Value

The argument is passed on as it is: NN(x)=x

Author(s)

Thomas Gerds

See Also

prodlim

Examples

## Not run: 
require(survival)
data(pbc)
prodlim(Hist(time,status)~NN(age),data=pbc)
## End(Not run)

[Package prodlim version 1.0.5 Index]