methods, grDevices, stats, utils, graphics
methods, grDevices, stats, utils, graphics, geosphere
rgdal, geostatsp, knitr,geonames, RColorBrewer, classInt
RColorBrewer, geonames, classInt, rgdal, knitr
RColorBrewer, geonames, classInt, rgdal, rgeos, geosphere,
knitr, dismo
RColorBrewer, classInt, rgdal, rgeos, geosphere, knitr, dismo
RColorBrewer, classInt, rgdal, rgeos, geosphere, knitr
RColorBrewer, classInt, rgdal, rgeos, geosphere, knitr,
markdown