The Recipes - Getting Started with R - page 5

Solution
Use the help.start function to see the documentation's table of contents:
> help.start()
From there, links are available to all the installed documentation.
Discussion
The base distribution of R includes a wealth of documentation—literally thousands of
pages. When you install additional packages, those packages contain documentation
that is also installed on your machine.
It is easy to browse this documentation via the help.start function, which opens a
window on the top-level table of contents; see Figure 1-1 .
Figure 1-1. Documentation table of contents