[R] Determining name of calling function.

[Rolf Turner]

On 28/09/2009, at 12:34 PM, Gabor Grothendieck wrote:

> Not sure if this is important to you but R functions don't have to
> have names so what you get back won't be a name if the function was
> anonymous.  In the example below an anonymous function calls fname and
> the returned string is the calling sequence but that's not its name
> since it has no name.  In fact, in a sense no R functions have names.
> You can store them in variables and call that variable its "name" but
> that is not an intrinsic part of the function itself.  A function is
> just an environment, an argument list and a body -- no name.
>
>> fname <- function() as.character(sys.call(-1))[1]
>> (function() fname())()
> [1] "(function() fname())"

	<snip>

Good point.  Thanks.  I don't ***think*** that this issue will call
problems for me.  In my real application ``bar()'' will always be
called by a named function.  Still, it's something to keep in mind.

	cheers,

		Rolf Turner

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