.Deprecated.
.Deprecated(new, package=NULL, msg, old = as.character(sys.call(sys.parent()))[1L]).Deprecated("") is called from deprecated
functions. The original help page for these functions is often
available at help("oldName-deprecated") (note the quotes).
Functions should be listed in help("pkg-deprecated") for an
appropriate pkg, including base.
Defunct base-deprecated and so on which list the deprecated functions
in the packages.