Create a ggplot Donut (Doughnut) Plot

Create a donut plot from a data frame containing groups and corresponding values with ggplot2::ggplot().

Usage

ggplot_donut(data, group = "group", value = "n", hsize = 2)

Arguments

data

Default dataset to use for plot. If not already a data.frame, will be converted to one by fortify(). If not specified, must be supplied in each layer added to the plot.

group

Name of column to use for the plot colors.

value

Name of column to use for the sector size.

hsize

Size of the donut hole. Defaults to 2, and must be a non-negative value. A value of 0 creates a pie chart.

Details

Implemented using ggplot2::geom_col(), ggplot2::coord_polar(), and ggplot2::xlim(), adapted from guides in The R Graph Gallery and R CHARTS.

Some default plot elements are disabled using ggplot2::theme() and ggplot2::element_blank().

Examples

library(dplyr, warn.conflicts = FALSE)
library(ggplot2)

mtcars %>%
  count(cyl) %>%
  mutate(cyl = as.factor(cyl)) %>%
  ggplot_donut(group = "cyl")