riskRegression (version 2022.03.22)

autoplot.Score: ggplot AUC curve

Description

ggplot AUC curves

Usage

# S3 method for Score
autoplot(
  object,
  models,
  type = "score",
  lwd = 2,
  xlim,
  ylim,
  axes = TRUE,
  conf.int = FALSE,
  ...
)

Arguments

object

Object obtained with Score.list

models

Choice of models to plot

type

Character. Either "score" to show AUC or "contrasts" to show differences between AUC.

lwd

Line width

xlim

Limits for x-axis

ylim

Limits for y-axis

axes

Logical. If TRUE draw axes.

conf.int

Logical. If TRUE draw confidence shadows.

...

Not yet used

Examples

library(survival)
library(ggplot2)
set.seed(10)
d=sampleData(100,outcome="survival")
nd=sampleData(100,outcome="survival")
f1=coxph(Surv(time,event)~X1+X6+X8,data=d,x=TRUE,y=TRUE)
f2=coxph(Surv(time,event)~X2+X5+X9,data=d,x=TRUE,y=TRUE)
xx=Score(list(f1,f2), formula=Surv(time,event)~1,
data=nd, metrics="auc", null.model=FALSE, times=seq(3:10))
g <- autoplot(xx)
print(g)
aucgraph <- plotAUC(xx)
plotAUC(xx,conf.int=TRUE)
plotAUC(xx,which="contrasts")
plotAUC(xx,which="contrasts",conf.int=TRUE)