terra (version 1.8-80)

cartogram: Cartogram

Description

Make a cartogram, that is, a map where the area of polygons is made proportional to another variable. This can be a good way to map raw count data (e.g. votes).

Usage

# S4 method for SpatVector
cartogram(x, var, type="nc")

Value

SpatVector

See Also

plot, rescale

Examples

f <- system.file("ex/lux.shp", package="terra")
v <- vect(f)
v$value <- 1:12
pnc <- cartogram(v, "value", "nc")
pcirc <- cartogram(v, "value", "circles")
plot(v, col="light gray", border="gray")
lines(pnc, col="red", lwd=2)
lines(pcirc, col="blue", lwd=2)