Adding Provinces to Canadian Map in R
问题 I've been browsing a lot of the topics on mapping in R and would appreciate a little help. I've made it to this code which builds an image of a purchase density then overlays a US State map on top and a Canadian national map as well. It's an ok solution, but Ideally I'd like to show the provinces in Canada as well. library(mapdata); library(maps); library(maptools); library(spatstat); png(filename=file_name, type="cairo-png", bg="transparent", width=10.*960, height=10.*960, pointsize=1);