Guest blog by Michael Grogan. Here is how we can use the maps, mapdata and ggplot2 libraries to create maps in R. In this particular example, we’re going to create a world map showing the points of Beijing and Shanghai, both cities in China. For this particular map, we will be displaying the Northern Hemisphere from Europe to Asia. require(maps)require(mapdata)library(ggplot2)library(ggrepel) cities… Read More »Creating maps in R using ggplot2 and maps libraries