RG#91: Plot bar or pie chart over world map using rworldmap package

require (rworldmap)
require(rworldxtra)

# get world map 

plot(getMap(resolution = "high" ))

##getting example data

dataf <- getMap()@data 

mapBars( dataf, nameX="LON", nameY="LAT" , nameZs=c('GDP_MD_EST',

'GDP_MD_EST','GDP_MD_EST') , mapRegion='asia' , symbolSize=2  ,

 barOrient = 'horiz' )

mapBars( dataf, nameX="LON", nameY="LAT" , nameZs=c('GDP_MD_EST','GDP_MD_EST',

'GDP_MD_EST') , mapRegion='asia' , symbolSize=3  , barOrient = 'vert' ,  

oceanCol = "blue1", landCol = "lightgreen")

mapPies( dataf,nameX="LON", nameY="LAT", nameZs=c('GDP_MD_EST','GDP_MD_EST',

'GDP_MD_EST','GDP_MD_EST'),mapRegion='asia', oceanCol = "lightseagreen",

 landCol = "gray50")