R: Variable Names or Symbols, respectively

name {base} | R Documentation

## Variable Names or Symbols, respectively

### Description

`as.symbol` coerces its argument to be a symbol, or equivalently, a name. The argument must be of mode `"character"`. `as.name` is an alias for `as.symbol`.

`is.symbol` (and `is.name` equivalently) returns `TRUE` or `FALSE` depending on whether its argument is a symbol (i.e. name) or not.

### Usage

    as.symbol(x)
    is.symbol(y)

    as.name(x)
    is.name(y)

### Arguments

`x, y` | objects to be coerced or tested.

### Note

The term ``symbol'' is from the lisp background of R, whereas ``name'' has been the standard S term for this.

### See Also

`call`, `is.language`. For the internal object mode, `typeof`.

### Examples

    an <- as.name("arrg")
    is.name(an) # TRUE
    str(an)# symbol

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