xplot_rocplot: Default xpose ROC plot function

In xpose.xtras: Extra Functionality for the 'xpose' Package

Default xpose ROC plot function

Description

Manually generate ROCs from an xpdb object.

Usage

xplot_rocplot(
  xpdb,
  mapping = NULL,
  type = "c",
  guide = TRUE,
  xscale = "continuous",
  yscale = "continuous",
  group = NULL,
  title = NULL,
  subtitle = NULL,
  caption = NULL,
  tag = NULL,
  plot_name = "xplot_rocplot",
  gg_theme,
  xp_theme,
  opt,
  quiet,
  thres_fixed = 0.5,
  like_col = NULL,
  obs_col = NULL,
  obs_target = NULL,
  auc_sprintf = "AUC: %.3f",
  ...
)

Arguments

xpdb	<xp_xtras> or <xpose_data> object
mapping	ggplot2 style mapping
type	See Details.
guide	Should the guide (e.g. unity line) be displayed.
xscale	Defaults to continuous.
yscale	Defaults to continuous.
group	Grouping for curves or points
title	Plot title
subtitle	Plot subtitle
caption	Plot caption
tag	Plot tag
plot_name	Metadata name of plot
gg_theme	As in xpose
xp_theme	As in xpose
opt	Processing options for fetched data
quiet	Silence extra debugging output
thres_fixed	Fixed threshold value for space
like_col	Column for likelihood/probability value
obs_col	Column for observed value
obs_target	Target observed value for likelihood
auc_sprintf	Format to apply to AUC label
...	Any additional aesthetics.

Details

For type-based customization of plots:

• c ROC curve (using geom_path)

• k Key points on ROC curve (where on curve the threshold is thres_fixed) (using geom_point)

• p ROC space points (using geom_point)

• t ROC space text (using geom_text)

• a AUC in bottom right (using geom_label)

Value

The desired plot

xpose.xtras documentation built on April 19, 2026, 9:06 a.m.