getVariableName {MSnbase} | R Documentation

## Return a variable name

### Description

Return the name of variable `varname` in call `match_call`.

### Usage

    getVariableName(match_call, varname)

### Arguments

`match_call` | An object of class `call`, as returned by `match.call`.
`varname` | An `character` of length 1 which is looked up in `match_call`.

### Value

A `character` with the name of the variable passed as parameter `varname` in parent close of `match_call`.

### Author(s)

Laurent Gatto

### Examples

    a <- 1
    f <- function(x, y)
     MSnbase:::getVariableName(match.call(), "x")
    f(x = a)
    f(y = a)

[Package MSnbase version 2.18.0 Index]