R: Determine Number of Arguments to Function

nDotArgs {splus2R} | R Documentation

## Determine Number of Arguments to Function

### Description

count the number of ... arguments passed.

### Usage

    nDotArgs(...)

### Arguments

`...` | ... arguments or real arguments in the call to the function whcih calls ttnDotArgs.

### Value

the number of ... arguments in the call to the function which calls `nDotArgs`.

### See Also

`nargs`.

### Examples

    myfun <- function(..., a=4) nDotArgs(...)
    myfun()                 ## returns 0
    myfun(1:3,"bear")       ## returns 2
    myfun(a=5, 1:3, "bear") ## returns 2 (excludes a)

[Package splus2R version 1.2-2 Index]