plot.DET: Plots one or more DET curves.

In gwquinn/NistBiom: Utilities for analyzing and displaying biometric DET curves.

Plots one or more DET curves.

Description

Plots one or more DET curves.

Usage

## S3 method for class 'DET'
plot(
  DETs,
  xlim = c(1e-06, 0.2),
  ylim = "auto",
  xlabel = ifelse("fmr" %in% names(DETs), "False Match Rate",
    "False Positive Identification Rate"),
  ylabel = ifelse("fnmr" %in% names(DETs), "False Nonmatch Rate",
    "False Negative Identification Rate"),
  x.axis = log.scale(name = xlabel, axis = "x"),
  y.axis = log.scale(name = ylabel, axis = "y", labels = identity, breaks =
    log.ticks(1:10)),
  FMR.sort = 10^mean(log10(xlim)),
  prepend.FNMR = FALSE,
  plotter = geom_step,
  legend = scale_colour_manual(values = colors.15),
  colour = key(DETs),
  theme = DET.theme,
  legend.position = "auto",
  ...
)

Arguments

DETs	A data.table representing the DET curve(s) to plot.
xlim	The horizontal axis limits (default: c(8e-7, 0.2)).
ylim	The vertical axis limits. "auto" (the default) selects limits that fully display all curves over the range specified by xlim.
xlabel	The horizontal axis label (default: FMR)
ylabel	The vertical axis label (default: FNMR)
x.axis	The horizontal axis scale object.
y.axis	The vertical axis scale object.
FMR.sort	Sort the curves in the legend according to their FNMR at this FMR (default: 1e-5).
plotter	The ggplot2 line drawing function (default: geom_step).
theme	The ggplot2 theme to apply (default: DET.theme()).
...	Additional parameters to pass to the theme object.
print.FNMR	If nonzero, prepend legend labels with the curve's FNMR at FMR=print.FNMR. If zero (the default), nothing is prepended.

Value

A ggplot plotting object.

Examples

gen.scores <- runif(1e5, 0, 10)
imp.scores <- rnorm(1e5)
DET <- make.DET(gen.scores, imp.scores)
plot.DET(DET, xlim=c(1e-4, 0.2), col="darkred", legend.position='none')

gwquinn/NistBiom documentation built on July 16, 2024, 12:34 p.m.