geom_roc: Geometry for ROC

In yikeshu0611/geomROC: ROC Geometry

Description

Geometry for ROC

Usage

geom_roc(data = NULL, mapping = aes(), size = 1, ...)

Arguments

data	roc analysis result after 'pROC' or 'ROCit' package
mapping	mapping
size	line size defaule is 1
...	other attributes

Value

gemeotry of roc

Examples

# do three ROC analysis
library(geomROC)
r1 <- rocit(score = Diabetes$bmi, class = Diabetes$dtest)
r2 <- rocit(score = Diabetes$chol, class = Diabetes$dtest)
r3 <- rocit(score = Diabetes$hdl, class = Diabetes$dtest)

#plot one roc curve
ggplot()+
    geom_roc(r1)
#plot two roc curves
ggplot()+
    geom_roc(r1)+
    geom_roc(r2)
#plot three roc curves
ggplot()+
    geom_roc(r1)+
    geom_roc(r2)+
    geom_roc(r3)

#use color
#add color to one roc
ggplot()+
    geom_roc(r1,aes(color='bmi'))+
    geom_roc(r2)+
    geom_roc(r3)
#add color to all
ggplot()+
    geom_roc(r1,aes(color='bmi'))+
    geom_roc(r2,aes(color='chol'))+
    geom_roc(r3,aes(color='hdl'))

#use linetype
ggplot()+
    geom_roc(r1,aes(linetype='bmi'))+
    geom_roc(r2,aes(linetype='chol'))+
    geom_roc(r3,aes(linetype='hdl'))

#use roc_theme()
ggplot()+
    geom_roc(r1,aes(linetype='bmi'))+
    geom_roc(r2,aes(linetype='chol'))+
    geom_roc(r3,aes(linetype='hdl'))+
    roc_theme()

yikeshu0611/geomROC documentation built on March 11, 2020, 4:17 a.m.