get_cutoffs_data: Prepare the cutoff data for the ROC curve

In plotthis: High-Level Plotting Built Upon 'ggplot2' and Other Plotting Packages

Prepare the cutoff data for the ROC curve

Description

Prepare the cutoff data for the ROC curve

Usage

get_cutoffs_data(
  data,
  truth_by,
  score_by,
  cat_by,
  cutoffs_at = NULL,
  cutoffs_labels = NULL,
  cutoffs_accuracy = 0.01,
  n_cuts = 0,
  increasing = TRUE
)

Arguments

data	A data frame with the truth and score columns.
truth_by	A character string of the column name that contains the true class labels.
score_by	A character string of the column name that contains the predicted scores.
cat_by	A character string of the column name to categorize/group the data. If specified, the cutoffs will be calculated for each category.
cutoffs_at	Vector of user supplied cutoffs to plot as points. If non-NULL, it will override the values of n_cuts and plot the observed cutoffs closest to the user-supplied ones.
cutoffs_labels	vector of user-supplied labels for the cutoffs. Must be a character vector of the same length as cutoffs_at.
n_cuts	An integer to specify the number of cuts on the ROC curve.
increasing	TRUE if the score is increasing with the truth (1), FALSE otherwise.

Value

A data frame with the cutoffs and the corresponding x and y values.

plotthis documentation built on April 11, 2025, 5:45 p.m.