methods
List Methods of an S3 or S4 Generic Function
Description
Returns the method names for either an S3 or S4 generic function name or class name.
Usage
methods(generic.function, class)
.S3methods(generic.function, class, envir=parent.frame())
Arguments
| generic.function |
the name of a generic function.
|
| class |
the name of a class.
|
| envir |
an environment to use when searching for a generic function object.
|
Details
Exactly one of the arguments generic.function or class
must be supplied.
Use
showMethods to find more information on the methods of
an S4 generic function.
An S3 method is a function with the name of the form
<generic>.<class>.
It is called when <generic>(object) is called,
and when class(object)==<class>.
For example, the function print.lm is called to print objects
whose class is "lm".
This function finds for all functions with names of this form.
Value
- methods returns a character vector of the names for all S3 or S4 methods for the
given generic function or class.
- .S3methods returns only the names of S3 methods.
The attributes of this value contain more information about the
locations of the methods.
See Also
Examples
methods("coef")
methods(class="factor")
.S3methods("print")