Realization of Map filling and layer overlay of scatter Map by R language Visualization
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Today I will share with you about how to add a scatter chart to the map layer.
Scatter maps need accurate longitude and latitude information to map on the superimposed layer, so we choose the provincial profile map of China and the longitude and latitude of provincial capitals for case demonstration.
Load package:
Library (ggplot2)
Library (plyr)
Library (maptools)
Library (sp)
Import the map of China's provincial boundaries:
China_map
