ggroc x-axis

[adatum]

Is there an easy way to have ggroc plot the false positive rate (1 - specificity) on the x-axis?

By default ggroc plots specificity on the reversed x-axis over [1, 0], instead of the perhaps more familiar (1-specificity) over [0, 1].

[xrobin]

This is not trivial at the moment, as you'd need to replace the data and aesthetics before changing the axis. I will consider adding an equivalent to legacy.axis in a future version.

[xrobin]

I added a legacy.axes argument to ggroc in commit baed9be. You can test it in the latest master version from github:

devtools::install_github("xrobin/pROC")
...
ggroc(rocobj, legacy.axes = TRUE)

[adatum]

That works perfectly. Thanks for the quick edits!