adjacencyOfClasses() gives the graph of the classes defined in one or more packages in several ways. It can also give a Wolfram language expression which can be evaluated in Mathematica, see the help page for details and examples.
use Rd macro
\printExample from package
Rdpack for some examples in details section (see
missing_arg() returns TRUE if an element of a pairlist is missing.
plotpdf() plots probability density and related functions over automatically selected intervals (based on cdf of qf).
A vignette illustrates