6.1 Packages

• rnaturalearth (boundaries)
• geodata (climate, elevation, land use, soil, crop, species occurrence, administrative boundaries, and other data)
• chirps (daily high-resolution precipitation, as well as daily maximum and minimum temperatures)
• elevatr (elevation data from Amazon Web Services)
• osmdata (roads, shops, railway stations, and much more)
• wbstats (global socio-economic data spanning several decades)
• spocc (species occurrence data sources including Global Biodiversity Information)
• wopr (estimates of population sizes for specific geographic areas)
• rdhs (Demographic and Health Survey (DHS))
• malariaAttlas (global malaria data)
• openair (air quality data and other atmospheric composition data)
• spatstat (point pattern data)
• spData (includes diverse spatial datasets )
• ggmap (geocode place names or addresses)
• opencage (convert names to geographic coordinates)
• tidycensus
• tigris
• mapSpain
• goebr
• giscoR

6.1.1 Example with rnaturalearth

# install.packages("devtools")
# devtools::install_github("ropensci/rnaturalearthhires")

library(rnaturalearth)
library(sf)
library(ggplot2)
library(viridis)
library(patchwork)

map1 <- ne_countries(type = "countries", 
                     country = "Germany",
                     scale = "medium", 
                     returnclass = "sf")
map2 <- rnaturalearth::ne_states("Germany", 
                                 returnclass = "sf")
p1 <- ggplot(map1) + geom_sf()
p2 <- ggplot(map2) + geom_sf()
p1 + p2