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Plot ROC Curve for Lineup Identification

Source: R/roc_functions.R
make_roc_gg.Rd

Creates a ggplot2 visualization of ROC data from lineup identification experiments.

Usage

make_roc_gg(
  rocobj_list,
  show_pauc = TRUE,
  point_labels = TRUE,
  title = "Partial ROC Curve (suspect IDs only)",
  data_source = NULL
)

Arguments

rocobj_list

List output from make_rocdata(), or the lineup_roc object from make_roc()

show_pauc

Logical. Whether to display pAUC value on plot (default = TRUE)

point_labels

Logical. Whether to label points with confidence levels (default = TRUE)

title

Character. Plot title. The default names the ROC variant, so that a partial ROC is not mistaken for a full ROC (see plot_fullroc).

data_source

Character. Name of the dataset the curve was computed from, appended to the caption. Defaults to the "data_source" attribute recorded by make_rocdata, and is omitted when unavailable.

Value

A ggplot2 object. Being an ordinary ggplot, it can be modified with the usual + syntax, e.g. p + ggplot2::theme_minimal().

Examples

data(lineup_example)
roc <- make_rocdata(lineup_example)
make_roc_gg(roc)