plot_density_class: Plot density per class

In daltoolbox: Leveraging Experiment Lines to Data Analytics

Plot density per class

Description

Kernel density plot grouped by a class label.

Usage

plot_density_class(
  data,
  class_label,
  label_x = "",
  label_y = "",
  colors = NULL,
  bin = NULL,
  alpha = 0.5
)

Arguments

data	data.frame with class label and a numeric column
class_label	name of the grouping (class) column
label_x	x‑axis label
label_y	y‑axis label
colors	optional vector of fills per class
bin	optional bin width passed to geom_density
alpha	fill transparency (0–1)

Details

Expects data with a grouping column named in class_label and one numeric column. Each group is filled with a distinct color (if provided).

Value

returns a ggplot2::ggplot graphic

Examples

grf <- plot_density_class(iris |> dplyr::select(Sepal.Width, Species),
class = "Species", colors=c("red", "green", "blue"))
plot(grf)

daltoolbox documentation built on Nov. 5, 2025, 7:09 p.m.