plot_lollipop: Plot lollipop

In daltoolbox: Leveraging Experiment Lines to Data Analytics

Plot lollipop

Description

Lollipop chart (stick + circle + value label) per category.

Usage

plot_lollipop(
  data,
  label_x = "",
  label_y = "",
  colors = NULL,
  color_text = "black",
  size_text = 3,
  size_ball = 8,
  alpha_ball = 0.2,
  min_value = 0,
  max_value_gap = 1
)

Arguments

data	data.frame with category and numeric values
label_x	x‑axis label
label_y	y‑axis label
colors	stick/circle color
color_text	color of the text inside the circle
size_text	text size
size_ball	circle size
alpha_ball	circle transparency (0–1)
min_value	minimum baseline for the stick
max_value_gap	gap from value to stick end

Details

Expects a data.frame with category in the first column and numeric values in subsequent columns. Circles are drawn at values, with vertical segments extending from min_value to value - max_value_gap.

Value

returns a ggplot2::ggplot graphic

Examples

#summarizing iris dataset
data <- iris |> dplyr::group_by(Species) |>
dplyr::summarize(Sepal.Length=mean(Sepal.Length))
head(data)

#ploting data
grf <- plot_lollipop(data, colors="blue", max_value_gap=0.2)
plot(grf)

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