Plot two receiver operating characteristic from the same data.frame.

Plot two receiver operating characteristic from the same data.frame.

ROCPlotPair(frame, xvar1, xvar2, truthVar, truthTarget, title, ...,
  returnScores = FALSE, nrep = 100, parallelCluster = NULL)

Arguments

frame	data frame to get values from
xvar1	name of the first independent (input or model) column in frame
xvar2	name of the second independent (input or model) column in frame
truthVar	name of the dependent (output or result to be modeled) column in frame
truthTarget	value we consider to be positive
title	title to place on plot
...	no unnamed argument, added to force named binding of later arguments.
returnScores	logical if TRUE return detailed permutedScores
nrep	number of permutation repititions to estimate p values.
parallelCluster	(optional) a cluster object created by package parallel or package snow.

Examples

set.seed(34903490)
x1 = rnorm(50)
x2 = rnorm(length(x1))
y = 0.2*x2^2 + 0.5*x2 + x1 + rnorm(length(x1))
frm = data.frame(x1=x1,x2=x2,yC=y>=as.numeric(quantile(y,probs=0.8)))
# WVPlots::ROCPlot(frm, "x1", "yC", TRUE, title="Example ROC plot")
# WVPlots::ROCPlot(frm, "x2", "yC", TRUE, title="Example ROC plot")
WVPlots::ROCPlotPair(frm, "x1", "x2", "yC", TRUE,
   title="Example ROC pair plot")