How to add auc.polygon in ggroc() ?

[DylanGuo1101]

The pROC package allowed me to plot roc curves easily and quickly, and added the ggroc() to be able to modify figures more easily.

But is it possible to plot roc curves with polygon using the ggroc() ? Like the plot.roc(auc.polygon = T).

[xrobin]

I guess that would be fairly easy to implement.

[xrobin]

I added an experimental geom_polygon_auc function:

data(aSAH)
roc.s100b <- roc(aSAH$outcome, aSAH$s100b)
ggroc(roc.s100b) + geom_polygon_auc(roc.s100b$auc)

It's not as easy, as the polygon appears in front of the ROC curve. I need to think how to work around that - suggestions welcome.