Plot INKAR Data on German Maps

Automatically projects regional INKAR data onto administrative boundaries of Germany using the geodata and sf packages. Supports Bund (BND), Bundeslaender (BLD), Kreise (KRE), and Gemeinden (GEM) levels. Alternatively, a custom sf geometry can be provided.

Usage

plot_inkar(
  data,
  variable = NULL,
  year = NULL,
  mode = c("light", "dark"),
  highlight = NULL,
  breaks = c("equal", "quantile"),
  title = NULL,
  geom = NULL
)

Arguments

data

A data frame returned by get_inkar_data().

variable

Character. For wide-format data with multiple indicators, specify which indicator column to plot.

year

Integer/Character. If the data contains multiple years, specify which year to plot. If NULL and multiple years exist, the most recent year is plotted.

mode

Character. "light" (default) or "dark" theme.

highlight

Character vector. Region names (partial match) to highlight; all other regions are shown at reduced opacity.

breaks

Character. Color scale break method: "equal" (default) or "quantile" for quantile-based color breaks.

title

Character. Custom plot title. Defaults to the indicator name.

geom

Optional sf object (spatial data frame) to use for plotting. If supplied, GADM geometries are not downloaded, and the data is merged directly with this object.

Value

A ggplot2 object displaying the mapped data.