These objects are undocumented.
In many cases, these are depricated in favor of alternative
methods (often in the mosaic package) to obtain the same results but remain in
the package to avoid breaking code used in Foundations and Applications of Statistics, the
book associated with this package.
For example, funplot, should be replaced by plotFun and
pdfplot, pmfhistogram, and pmfplot should be replaced by
plotDist.
In other cases, the functions are of limited suitability for general use.