Stacked Column Geometry Layer — hd_geom_stacked

Create a stacked column geometry layer for hd objects. Each stack is a facet (sub-panel) containing one or more series. The stack argument specifies the column in the data that defines the stacks. The group aesthetic in hd_spec() defines the series within each stack. The stacking argument controls how the stacks are rendered: "normal" (default) stacks values on top of each other, while "percent" stacks values as percentages of the total stack height.

Usage

hd_geom_stacked_column(stack, stacking = c("normal", "percent"), ...)

Arguments

stack: Character. Column name for the stack variable. Each unique value in this column creates a separate stack (facet) containing all series with that stack value. Required.
stacking: Character. Stacking mode for the column geometry. One of "normal" (default) or "percent". See Highcharts documentation for details: https://api.highcharts.com/highcharts/plotOptions.column.stacking
...: Additional optional arguments forwarded to the geom function (e.g. show_line = FALSE, single_colour = "#025169"). Run geom_args("arearange") for the full list.

Value

An S3 object of class "hd_geom" for use with +.hd.

Examples


# Example data: medal counts for four countries across three medal types
olympics <- data.frame(
    Country   = rep(c("Norway", "Germany", "United States", "Canada"), each = 3),
    Continent = rep(c("Europe", "Europe", "North America", "North America"), each = 3),
    Medal     = rep(c("Gold", "Silver", "Bronze"), times = 4),
    Count     = c(148, 133, 124, 102, 98, 65, 113, 122, 95, 77, 72, 80)
)

# Define Specification and Options
spec_st <- hd_spec(olympics,
    x     = "Medal",
    y     = "Count",
    group = "Country"
)

opts_st <- hd_opts(
    title    = "Olympic Games all-time medal table, grouped by continent",
    subtitle = "Source: Olympics",
    ylab     = "Count medals"
)

# Interactive — stacks are separated by continent
hd_make(spec_st, "stacked_column", opts_st, stack = "Continent")


# Static ggplot2 — stacks are separated by continent
hd(spec_st, backend = "ggplot2") +
  hd_geom_stacked_column(stack = "Continent") +
  hd_opts(title = "Olympic Games all-time medal table, grouped by continent", ylab = "Count medals")