genericFunction-class

groupGenericFunction-class

Generic functions (objects from or extending class
  <code>genericFunction</code>) are extended function objects,
  containing information used in creating and dispatching methods for
  this function.  They also identify the package associated with the
  function and its methods.

classes

Formally defined methods and classes for R objects,
  plus other programming tools, as described in the reference.

R-core R-core@R-project.org

methods

Formal Methods and Classes

genericFunction-class function

Generic functions are created and assigned by
  <code><a href="/link/setGeneric?package=methods&version=3.3" rd-options="" data-mini-rdoc="methods::setGeneric">setGeneric</a></code> or <code><a href="/link/setGroupGeneric?package=methods&version=3.3" rd-options="" data-mini-rdoc="methods::setGroupGeneric">setGroupGeneric</a></code> and, indirectly, by
  <code><a href="/link/setMethod?package=methods&version=3.3" rd-options="" data-mini-rdoc="methods::setMethod">setMethod</a></code>.<p></p><p>  As you might expect <code><a href="/link/setGeneric?package=methods&version=3.3" rd-options="" data-mini-rdoc="methods::setGeneric">setGeneric</a></code> and
  <code><a href="/link/setGroupGeneric?package=methods&version=3.3" rd-options="" data-mini-rdoc="methods::setGroupGeneric">setGroupGeneric</a></code> create objects of class
  <code>"genericFunction"</code> and <code>"groupGenericFunction"</code> respectively.</p>

Objects from the Class

Class <code>"function"</code>, from data part.Class <code>"OptionalMethods"</code>, by class <code>"function"</code>.Class <code>"PossibleMethod"</code>, by class <code>"function"</code>.

Extends

Generic function objects are used in the creation and dispatch of
  formal methods; information from the object is used to create methods
  list objects and to merge or update the existing methods for this
  generic.

genericFunction-class: Generic Function Objects

Description

Arguments

Objects from the Class

Extends

Methods