listMethods: List all methods associated with a generic function or a...

Description Usage Arguments Value Author(s) See Also Examples

View source: R/listMethods.R

Description

List all S3 and/or S4 methods for a generic function or for a class.

Usage

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listMethods(f = character(), class = NULL, S3 = TRUE, S4 = TRUE,
    mixed = TRUE, filter = getOption("svGUI.methods"))

Arguments

f

the name of the generic function (character string), used only when class = NULL.

class

the name of a class.

S3

if TRUE, list of S3 methods.

S4

if TRUE, list of S4 methods.

mixed

if TRUE, S3 and S4 methods are mixed together in a character vector, otherwise, S3 and S4 methods are reported separately in a list

filter

a list of methods to consider when listing class methods. Only classes in this list that are defined for the class are returned. Store the list of methods you want in the options \"svGUI.methods\". The package proposes a reasonable starting point on loading if this option is not defined yet.

Value

If mixed = TRUE, a list with components:

S3

The S3 methods for the generic function or the class, or character(0) if none

S4

The S4 methods for the generic function or the class, or character(0) if none

Otherwise, a character vector with the requested methods

Author(s)

Philippe Grosjean <[email protected]>

See Also

listTypes, addItems

Examples

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## Generic functions
listMethods("t.test")               # S3
listMethods("show", mixed = FALSE)	# S4
listMethods("ls") # None, not a generic function!

## Classes
## Only the following methods are considered
getOption("gui.methods")
listMethods(class = "data.frame")
listMethods(class = "lm")

svMisc documentation built on May 29, 2017, 12:18 p.m.