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Combining Admin 1 Choropleths and Reference Maps

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A new version of choroplethr (v3.4.0) is now on CRAN. It allows you to combine Administrative Level 1 choropleths with reference maps. For reference, this functionality has been present for US maps for a while now (1, 2). This update just extends that functionality to the Administrative Level 1 mapping function, admin1_choropleth. To do this, just set the parameter reference_map=TRUE. This…
Original post: Combining Admin 1 Choropleths and Reference Maps
Source: R-bloggers