7.4 Packages & functions

• Packages: There are plenty of packages
  • sf: A package that provides simple features access for R
    • st_as_sf(): Convert foreign object to an sf object
    • aggregate(): aggregate an sf object, possibly unioning geometries
    • st_bbox(): Return bounding of a simple feature or simple feature set
    • geom_sf(): geoms to visualise simple feature (sf) objects.
    • st_geometry(): Get, set, or replace geometry from an sf object
  • rgdal: Bindings for the ‘Geospatial’ Data Abstraction Library
    • readOGR(): Read OGR vector maps into Spatial objects
    • See explanation of necessary files (.shp, .shx, .dbf)
  • cowplot package and ggdraw(): Set up a drawing layer on top of a ggplot
• Other tutorials:
  • Accessing OpenStreetMap data with R
  • Geocoding with R
  • Map Plots Created With R And Ggmap
  • Time Based Heatmaps in R
  • Plotting Simple Features
  • Drawing beautiful maps programmatically with R, sf and ggplot2