Realization of Polygon and data Map filling by R language Visualization

This article introduces the relevant knowledge of "R language visualization of polygons and data map filling". In the operation of actual cases, many people will encounter such a dilemma. Next, let the editor lead you to learn how to deal with these situations! I hope you can read it carefully and be able to achieve something!

There is a special type of chart called polygon in the ggplot function. It is difficult to define which type of chart it belongs to from a traditional perspective, because it can present a variety of information.

This polygonal function can be magical, especially when making some higher-level charts-maps.

Almost all the techniques used to draw maps and charts pushed by this official account rely on the support of polygonal functions.

Library (ggplot2)

Library (plyr)

Library ("maptools")

Here is an example of a global map that has been pushed before:

Import map geographic information data:

World_map