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This article mainly introduces "R language visualization to realize map and bubble chart drawing". In daily operation, I believe that many people have doubts about R language visualization to realize map and bubble chart drawing. The editor consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts of "R language visualization to realize map and bubble chart drawing". Next, please follow the editor to study!

Today, I would like to share with you how to draw scatter and bubble charts on the map.

Yesterday introduced to you the principle of ggplot function for mapping, through the outline points and groups to define each region (national boundary), through polygon filling to complete the region color.

The layer overlay principle of ggplot allows us to overlay multiple layers in the coordinate system.

So overlaying scatters or even bubbles on a map can be easily achieved:

Import of packages:

Library (maptools)

Library (ggplot2)

Library (plyr)

Import geographic information data:

China_map

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