From hadley at rice.edu  Sat Oct  9 13:51:51 2010
From: hadley at rice.edu (Hadley Wickham)
Date: Sat, 9 Oct 2010 06:51:51 -0500
Subject: [Rd] What do you call the value that represents a missing
	argument?
In-Reply-To: <Pine.LNX.4.64.1010082003070.10738@tajo.ucsd.edu>
References: <AANLkTinE7+NhYw=8hxHi5nW+pWYWdRVjgJScm0ky_W1W@mail.gmail.com>
	<Pine.LNX.4.64.1010082003070.10738@tajo.ucsd.edu>
Message-ID: <AANLkTi==+Wsx-6fZMEquZtrwWmK2vLK3-6rbaRS6NLsw@mail.gmail.com>

> It is a 'dotted pair list'

But:

> is.pairlist(formals(plot)$x)
[1] FALSE

Hadley

-- 
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/



[Rd] What do you call the value that represents a missing argument?
Hadley Wickham