How to change the variable values of countryExData in rworldmap?

12 December 2016 0 2K Report

Dear,

I need to draw a thermal map of world using R Console, then the package 'rworldmap' is downloaded. However, I want to know the detailed database of the rworldmap package, and willing to replace the old database with the new one. Who can show me the method to change the database or open the data file (i.e., Rdata.rdb, Rdata.rds, Rdata.rdx)?

Thank you very much.

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