R: Checks if a function is a S4 generic function

isGenericS4 {R.methodsS3} | R Documentation

## Checks if a function is a S4 generic function

### Description

Checks if a function is a S4 generic function.

### Usage

    ## Default S3 method:
    isGenericS4(fcn, envir=parent.frame(), ...)

### Arguments

`fcn` | A `function` or a `character` string.
`...` | Not used.

### Details

A function is considered to be a generic S4 function if its body, that is the source code, contains the regular pattern `"standardGeneric"`.

### Value

Returns `TRUE` if a generic S4 function, otherwise `FALSE`.

### Author(s)

Henrik Bengtsson

[Package R.methodsS3 version 1.7.1 Index]