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2012 Jun 28
2
R help, using R to build choropleth
Hi guys
i need some help to build choropleth.
Basically i am trying to colour regions on the map by population.
I possess the shape file of the country, and also the population data,
however, i am having trouble to create the plot, below is my code:
population=read.csv("nz2.csv")
population
names(population)
nz=readShapeSpatial((sprintf('nz-geodetic-marks',tmp_dir)))