是否可以在R中读取geoJSON或topoJSON文件来绘制Choropleth映射? [英] Is it possible to read geoJSON or topoJSON file in R to draw a choropleth map?

问题描述

topoJSON和geoJSON文件在Internet上绘制地图非常普遍.是否可以将它们导入R来绘制Choropleth映射?

topoJSON and geoJSON files are know very common for drawing maps on the internet. Is it possible to import them in R to draw choropleth maps?

推荐答案

获取安装的rgdal软件包.然后，如果:

Get the rgdal package installed. Then if:

library(rgdal)
> "GeoJSON" %in% ogrDrivers()$name
[1] TRUE

然后您可以执行以下操作:

then you can do something like:

> map = readOGR("foo.json", "OGRGeoJSON")
> plot(map)

但是您需要ogrDrivers列表中的GeoJSON支持.

But you need GeoJSON support in your ogrDrivers list.

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