How do you install the XML library for R programming?

If you try to run the program to install the library for XML you would get an error as the library is not installed by default.
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> library(XML)
Error in library(XML) : there is no package called ‘XML’
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From Main menu Packages click Install package(s)...

You will get at list of Internet sites from where you can install.

Pick a site and the packages available there are displayed (USA[TN] was picked.

Pick XML from the drop-down and you will get the following response:

Once you have the package you can start programming.