Calculate dynamic AUC(t) curve

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Description

Calculate dynamic model-free curve of Area Under the Curve values over time, based on the dynamic/incident AUC of Heagerty and Zheng.

Usage

1

Arguments

formula

Formula for prediction model to be used as in coxph

data

Data set in which to interpret the formula

width

Width of the window

Value

A data frame with columns

time

The time points t at which AUCw(t) changes value (either t or t+width is an event time point)

AUCw

The AUCw(t) function

and with attribute "width" given as input.

Author(s)

Hein Putter H.Putter@lumc.nl

References

van Houwelingen HC, Putter H (2012). Dynamic Prediction in Clinical Survival Analysis. Chapman & Hall.

Examples

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data(ova)
AUCw(Surv(tyears, d) ~ Karn + Broders + FIGO + Ascites + Diam, data = ova,
  width = 2)