simple (I think) question: How do I add names to the countries?

[Drew esoa]

Hi all, I have read through the CRAN pdf for rworldmap and am still scratching my head as to how to add country names to my plot. My code is below:

library(WDI)

library(rworldmap)

library(RColorBrewer)

library(raster)

##physicians per 1000 people: SH.MED.PHYS.ZS

##co2 emissions KT total: EN.ATM.CO2E.KT

##pull data on CO2 Emissions using WDI plugin

datamap = WDI(indicator = "SH.MED.PHYS.ZS", start=2010, end=2010)

##sPDF file created (Spatial Polygons Data Frame) for mapping use

data(datamap)

sPDF <- joinCountryData2Map( datamap

                             ,joinCode = "ISO2"

                             ,nameJoinColumn = "iso2c"

                             ,nameCountryColumn = 'country' )

mapDevice() ##create world map using data specified

mapParams <- mapCountryData(sPDF

                            ,nameColumnToPlot='SH.MED.PHYS.ZS'

                            ,addLegend=FALSE

                           ##(set to specify region) e.g. 

                            ,mapRegion='Europe'

                            ,catMethod='logfixedWidth'

                            ,numCats=24

                            ,colourPalette='heat' ) 

country_coord <- data.frame(coordinates(pdf1),stringsAsFactors=F)

text(pdf1, labels="NAME")

#adding legend for data - note: this is to customize the legend 

##(if addLegend above was True mapDevice would use default option)

do.call(addMapLegend

        ,c(mapParams

           ,legendLabels="all"

           ,legendWidth=0.5

           ,legendIntervals="data"

           ,legendMar = 3))

You will notice that I tried implementing a solution using the raster package to no avail. 

I appreciate any help or direction with this problem,

Cheers-

[Jean-Baka Domelevo Entfellner]

Hello,

Why not using labelCountries() if you want to add names directly onto the plot?
http://www.inside-r.org/packages/cran/rworldmap/docs/labelCountries

Regards,
Jean-Baka

> --
> You received this message because you are subscribed to the Google Groups
> "rworldmap" group.
> To post to this group, send email to rwor...@googlegroups.com.
> Visit this group at http://groups.google.com/group/rworldmap.
> To view this discussion on the web, visit
> https://groups.google.com/d/msgid/rworldmap/d457d904-5d62-48dd-bba9-5ebbe624bd19%40googlegroups.com.