qroc: ROC plots in ggplot

In dewittpe/qwraps: Quick Wraps

Description

plot a ROC in ggplot for a given logistic regression fit.

Usage

qroc(fit, newdata = NULL, show.auc = FALSE, n = 200)

Arguments

a	glm object from a family = binomial
newdata	if omitted the data used to fit the model is used, else this newdata is passed to the predict function and the resulting ROC plot is based on this data.
show.auc	show the area under the curve on the plot via text.
n	number of thresholds to use, defualt is 200

Value

a list with the plot, the auc, and the data.frame used to plot the ROC

Author(s)

Peter DeWitt

Examples

fit <- glm(I(mpg > 15) ~ wt + cyl, data = mtcars,
           family = binomial(link = "logit"))
roc <- qrocc(fit)
roc$auc
roc$plot

dewittpe/qwraps documentation built on May 15, 2019, 5:07 a.m.