plotROC (version 1.3.3)

ggroc: Plot an ROC curve

Description

Given a data frame or list of data frames as computed by calculate_roc plot the curve using ggplot and sensible defaults. Pass the resulting object and data to export_interactive_roc, plot_interactive_roc, or plot_journal_roc.

Usage

ggroc(rocdata, fpf_string = "FPF", tpf_string = "TPF", c_string = "c",
  ci = FALSE, label = NULL, label.adj.x = 0, label.adj.y = 0,
  label.angle = 45, plotmath = FALSE, xlabel = "False positive fraction",
  ylabel = "True positive fraction")

Arguments

rocdata

Data frame containing true and false positive fractions, and cutoff values

fpf_string

Column name identifying false positive fraction column

tpf_string

Column name identifying true positive fraction column

c_string

Column name identifying cutoff values

ci

Logical, if TRUE will create invisible confidence regions for use in the interactive plot

label

Optional direct label for the ROC curve

label.adj.x

Adjustment for the horizontal positioning of the label

label.adj.y

Adjustment for the vertical positioning of the label

label.angle

Adjustment for angle of label

plotmath

Logical. If TRUE, labels will be parsed as expressions. See ?plotmath for details.

xlabel

Defaults to "False positive fraction"

ylabel

Defaults to "True positive fraction"

Value

• A ggplot object