Getting Help
A plethora of resources are available to help you learn more about R. These include several facilities within R itself and, of course, on the Web.
Much work has gone into making R self-documenting. We’ll look at some of R’s built-in help facilities and then at those available on the Internet.
The help() Function
To get online help, invoke help()
. For example, to get information on the seq()
function, type this:
> help(seq)
The shortcut to help()
is a question mark (?)
:
> ?seq
Special characters and some reserved words must be quoted when used with the help()
function. For instance, you need to type the following to get help on the <
operator:
> ?"<"
And to see what the online manual has to say about for
loops, enter this:
> ?"for"
The example() ...
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