examples/tm_legend.R

In r-tmap/tmap: Thematic Maps

# Example using different settings from tm_legend()

tm_shape(World) +
  tm_polygons(
    fill = "HPI",
    fill.legend = tm_legend(
      title = "Home Price Index",
      design = "standard",
      title.color = "orange",
      bg.color = "purple",
      show = TRUE
	),
    id = "name",
    # Format the labels using dollar sign
    fill.scale = tm_scale_intervals(
      label.format = function(x) format(x, big.mark = " ")),
)